Name

GPI Gene

glucose-6-phosphate isomerase

This gene encodes a member of the glucose phosphate isomerase protein family. The encoded protein has been identified as a moonlighting protein based on its ability to perform mechanistically distinct functions. In the cytoplasm, the gene product functions as a glycolytic enzyme (glucose-6-phosphate isomerase) that interconverts glucose-6-phosphate and fructose-6-phosphate. Extracellularly, the encoded protein (also referred to as neuroleukin) functions as a neurotrophic factor that promotes survival of skeletal motor neurons and sensory neurons, and as a lymphokine that induces immunoglobulin secretion. The encoded protein is also referred to as autocrine motility factor based on an additional function as a tumor-secreted cytokine and angiogenic factor. Defects in this gene are the cause of nonspherocytic hemolytic anemia and a severe enzyme deficiency can be associated with hydrops fetalis, immediate neonatal death and neurological impairment. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2016]

PCYT2 Gene

phosphate cytidylyltransferase 2, ethanolamine

This gene encodes an enzyme that catalyzes the formation of CDP-ethanolamine from CTP and phosphoethanolamine in the Kennedy pathway of phospholipid synthesis. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2010]

ETNPPL Gene

ethanolamine-phosphate phospho-lyase

Enables ethanolamine-phosphate phospho-lyase activity. Predicted to act upstream of or within several processes, including cellular response to glucocorticoid stimulus; ceramide phosphoethanolamine catabolic process; and phospholipid transfer to membrane. Predicted to be located in mitochondrial matrix. [provided by Alliance of Genome Resources, Mar 2025]

LOC100419356 Gene

ethanolamine kinase 1 pseudogene

ETNK2 Gene

ethanolamine kinase 2

The protein encoded by this gene is a member of choline/ethanolamine kinase family which catalyzes the first step of phosphatidylethanolamine (PtdEtn) biosynthesis via the cytidine diphosphate (CDP) ethanolamine pathway. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2014]

ETNK1 Gene

ethanolamine kinase 1

This gene encodes an ethanolamine kinase, which functions in the first committed step of the phosphatidylethanolamine synthesis pathway. This cytosolic enzyme is specific for ethanolamine and exhibits negligible kinase activity on choline. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2008]

CEPT1 Gene

choline/ethanolamine phosphotransferase 1

This gene codes for a choline/ethanolaminephosphotransferase, which functions in the synthesis of choline- or ethanolamine- containing phospholipids. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2016]

LOC100420658 Gene

post-GPI attachment to proteins 2 pseudogene

LOC101059977 Gene

predicted GPI-anchored protein 58

SEMA7A Gene

semaphorin 7A, GPI membrane anchor (John Milton Hagen blood group)

This gene encodes a member of the semaphorin family of proteins. The encoded preproprotein is proteolytically processed to generate the mature glycosylphosphatidylinositol (GPI)-anchored membrane glycoprotein. The encoded protein is found on activated lymphocytes and erythrocytes and may be involved in immunomodulatory and neuronal processes. The encoded protein carries the John Milton Hagen (JMH) blood group antigens. Mutations in this gene may be associated with reduced bone mineral density (BMD). Alternative splicing results in multiple transcript variants, at least one of which encodes an isoform that is proteolytically processed. [provided by RefSeq, Feb 2016]

PGAP1 Gene

post-GPI attachment to proteins 1

The protein encoded by this gene functions early in the glycosylphosphatidylinositol (GPI) biosynthetic pathway, catalyzing the inositol deacylation of GPI. The encoded protein is required for the production of GPI that can attach to proteins, and this may be an important factor in the transport of GPI-anchored proteins from the endoplasmic reticulum to the Golgi. Defects in this gene are a cause an autosomal recessive form of cognitive impairment. [provided by RefSeq, Jul 2017]

PGAP3 Gene

post-GPI attachment to proteins 3

This gene encodes a glycosylphosphatidylinositol (GPI)-specific phospholipase that primarily localizes to the Golgi apparatus. This ubiquitously expressed gene is predicted to encode a seven-transmembrane protein that removes unsaturated fatty acids from the sn-2 position of GPI. The remodeling of the constituent fatty acids on GPI is thought to be important for the proper association between GPI-anchored proteins and lipid rafts. The tethering of proteins to plasma membranes via posttranslational GPI-anchoring is thought to play a role in protein sorting and trafficking. Mutations in this gene cause an autosomal recessive form of neurologic hyperphosphatasia with cognitive disability (HPMRS4). Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2017]

PGAP2 Gene

post-GPI attachment to proteins 2

The protein encoded by this gene plays a role in the maturation of glycosylphosphatidylinositol (GPI) anchors on GPI-anchored proteins. Mutations in this gene are associated with an autosomal recessive syndrome characterized by hyperphosphatasia and intellectual disability. [provided by RefSeq, Jul 2017]

LOC105372872 Gene

predicted GPI-anchored protein 58

LOC105375604 Gene

uncharacterized threonine-rich GPI-anchored glycoprotein PJ4664.02-like

PGAP4 Gene

post-GPI attachment to proteins GalNAc transferase 4

Enables glycosyltransferase activity. Involved in GPI anchor biosynthetic process. Located in Golgi membrane. [provided by Alliance of Genome Resources, Mar 2025]

PGAP6 Gene

post-GPI attachment to proteins 6

Predicted to enable calcium-dependent phospholipase A2 activity and calcium-independent phospholipase A2 activity. Predicted to be involved in lipid metabolic process. Located in extracellular exosome and lysosomal membrane. [provided by Alliance of Genome Resources, Mar 2025]

SMPD5 Gene

sphingomyelin phosphodiesterase 5

Predicted to enable sphingomyelin phosphodiesterase activity. Predicted to be involved in ceramide biosynthetic process and sphingomyelin catabolic process. Predicted to act upstream of or within ceramide metabolic process. Predicted to be located in endoplasmic reticulum membrane and mitochondrial membrane. [provided by Alliance of Genome Resources, Mar 2025]

SMPD4 Gene

sphingomyelin phosphodiesterase 4, neutral membrane (neutral sphingomyelinase-3)

The protein encoded by this gene is a sphingomyelinase that catalyzes the hydrolysis of membrane sphingomyelin to form phosphorylcholine and ceramide. This gene is activated by DNA damage, cellular stress, and tumor necrosis factor, but it is downregulated by wild-type p53. The encoded protein localizes to the endoplasmic reticulum and Golgi network. [provided by RefSeq, Mar 2017]

SMPD1 Gene

sphingomyelin phosphodiesterase 1, acid lysosomal

The protein encoded by this gene is a lysosomal acid sphingomyelinase that converts sphingomyelin to ceramide. The encoded protein also has phospholipase C activity. Defects in this gene are a cause of Niemann-Pick disease type A (NPA) and Niemann-Pick disease type B (NPB). Multiple transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2010]

SMPD3 Gene

sphingomyelin phosphodiesterase 3, neutral membrane (neutral sphingomyelinase II)

Enables sphingomyelin phosphodiesterase activity. Involved in sphingomyelin catabolic process. Predicted to be located in plasma membrane. Predicted to be active in cytoplasm. Biomarker of pulmonary emphysema. [provided by Alliance of Genome Resources, Mar 2025]

SMPD2 Gene

sphingomyelin phosphodiesterase 2, neutral membrane (neutral sphingomyelinase)

This gene encodes a protein which was initially identified as a sphingomyelinase based on sequence similarity between bacterial sphingomyelinases and a yeast protein. Subsequent studies showed that its biological function is less likely to be as a sphingomyelinase and instead as a lysophospholipase. [provided by RefSeq, Oct 2009]

PDE11A Gene

phosphodiesterase 11A

The 3',5'-cyclic nucleotides cAMP and cGMP function as second messengers in a wide variety of signal transduction pathways. 3',5'-cyclic nucleotide phosphodiesterases (PDEs) catalyze the hydrolysis of cAMP and cGMP to the corresponding 5'-monophosphates and provide a mechanism to downregulate cAMP and cGMP signaling. This gene encodes a member of the PDE protein superfamily. Mutations in this gene are a cause of Cushing disease and adrenocortical hyperplasia. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

GDPD2 Gene

glycerophosphodiester phosphodiesterase domain containing 2

This gene encodes a member of the glycerophosphodiester phosphodiesterase enzyme family. The encoded protein hydrolyzes glycerophosphoinositol to produce inositol 1-phosphate and glycerol. This protein may have a role in osteoblast differentiation and growth. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Jan 2010]

GDPD3 Gene

glycerophosphodiester phosphodiesterase domain containing 3

Enables phosphoric diester hydrolase activity. Involved in N-acylethanolamine metabolic process. Located in endoplasmic reticulum. [provided by Alliance of Genome Resources, Mar 2025]

GDPD4 Gene

glycerophosphodiester phosphodiesterase domain containing 4

Predicted to enable glycerophosphodiester phosphodiesterase activity. Predicted to be involved in lipid metabolic process. Predicted to be active in membrane. [provided by Alliance of Genome Resources, Mar 2025]

GDPD5 Gene

glycerophosphodiester phosphodiesterase domain containing 5

Predicted to enable glycerophosphodiester phosphodiesterase activity. Predicted to be involved in negative regulation of Notch signaling pathway; positive regulation of cell cycle; and positive regulation of neuron differentiation. Predicted to act upstream of or within neuron differentiation and regulation of timing of cell differentiation. Predicted to be located in axon; neuronal cell body; and perinuclear endoplasmic reticulum. Predicted to be active in plasma membrane. [provided by Alliance of Genome Resources, Mar 2025]

PDE7A Gene

phosphodiesterase 7A

The protein encoded by this gene belongs to the cyclic nucleotide phosphodiesterase (PDE) family, and PDE7 subfamily. This PDE hydrolyzes the second messenger, cAMP, which is a regulator and mediator of a number of cellular responses to extracellular signals. Thus, by regulating the cellular concentration of cAMP, this protein plays a key role in many important physiological processes. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Jul 2011]

TDP2 Gene

tyrosyl-DNA phosphodiesterase 2

This gene encodes a member of a superfamily of divalent cation-dependent phosphodiesterases. The encoded protein associates with CD40, tumor necrosis factor (TNF) receptor-75 and TNF receptor associated factors (TRAFs), and inhibits nuclear factor-kappa-B activation. This protein has sequence and structural similarities with APE1 endonuclease, which is involved in both DNA repair and the activation of transcription factors. [provided by RefSeq, Jul 2008]

LOC653513 Gene

phosphodiesterase 4D interacting protein pseudogene

TDP1 Gene

tyrosyl-DNA phosphodiesterase 1

The protein encoded by this gene is involved in repairing stalled topoisomerase I-DNA complexes by catalyzing the hydrolysis of the phosphodiester bond between the tyrosine residue of topoisomerase I and the 3-prime phosphate of DNA. This protein may also remove glycolate from single-stranded DNA containing 3-prime phosphoglycolate, suggesting a role in repair of free-radical mediated DNA double-strand breaks. This gene is a member of the phospholipase D family and contains two PLD phosphodiesterase domains. Mutations in this gene are associated with the disease spinocerebellar ataxia with axonal neuropathy (SCAN1). [provided by RefSeq, Aug 2016]

PDE2A Gene

phosphodiesterase 2A, cGMP-stimulated

Enables several functions, including 3',5'-cyclic-nucleotide phosphodiesterase activity; anion binding activity; and metal ion binding activity. Involved in several processes, including cellular response to cytokine stimulus; regulation of signal transduction; and regulation of vascular permeability. Located in several cellular components, including cytosol; mitochondrial membrane; and perinuclear region of cytoplasm. [provided by Alliance of Genome Resources, Mar 2025]

ENPP7P13 Gene

ectonucleotide pyrophosphatase/phosphodiesterase 7 pseudogene 13

ENPP7P11 Gene

ectonucleotide pyrophosphatase/phosphodiesterase 7 pseudogene 11

LOC645262 Gene

phosphodiesterase 4D interacting protein-like

LOC100419366 Gene

phosphodiesterase 8B pseudogene

LOC100101483 Gene

glycerophosphocholine phosphodiesterase GDE1 homolog (S. cerevisiae) pseudogene

LOC100421279 Gene

phosphodiesterase 4D interacting protein pseudogene

GDPD1 Gene

glycerophosphodiester phosphodiesterase domain containing 1

This gene encodes a member of the glycerophosphodiester phosphodiesterase family of enzymes that catalyze the hydrolysis of deacylated glycerophospholipids to glycerol phosphate and alcohol. The encoded protein is localized to the cytoplasm and concentrates near the perinuclear region. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2009]

LOC100132057 Gene

phosphodiesterase 4D interacting protein pseudogene

PDE5A Gene

phosphodiesterase 5A, cGMP-specific

This gene encodes a cGMP-binding, cGMP-specific phosphodiesterase, a member of the cyclic nucleotide phosphodiesterase family. This phosphodiesterase specifically hydrolyzes cGMP to 5'-GMP. It is involved in the regulation of intracellular concentrations of cyclic nucleotides and is important for smooth muscle relaxation in the cardiovascular system. Alternative splicing of this gene results in three transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2008]

LOC105376525 Gene

ectonucleotide pyrophosphatase/phosphodiesterase family member 7-like

ENPP7P9 Gene

ectonucleotide pyrophosphatase/phosphodiesterase 7 pseudogene 9

ENPP7P8 Gene

ectonucleotide pyrophosphatase/phosphodiesterase 7 pseudogene 8

ENPP7P2 Gene

ectonucleotide pyrophosphatase/phosphodiesterase 7 pseudogene 2

ENPP7P1 Gene

ectonucleotide pyrophosphatase/phosphodiesterase 7 pseudogene 1

ENPP7P7 Gene

ectonucleotide pyrophosphatase/phosphodiesterase 7 pseudogene 7

ENPP7P4 Gene

ectonucleotide pyrophosphatase/phosphodiesterase 7 pseudogene 4

PDE10A Gene

phosphodiesterase 10A

The protein encoded by this gene belongs to the cyclic nucleotide phosphodiesterase family. It plays a role in signal transduction by regulating the intracellular concentration of cyclic nucleotides. This protein can hydrolyze both cAMP and cGMP to the corresponding nucleoside 5' monophosphate, but has higher affinity for cAMP, and is more efficient with cAMP as substrate. Alternatively spliced transcript variants have been described for this gene. [provided by RefSeq, Dec 2011]

PDE8A Gene

phosphodiesterase 8A

The protein encoded by this gene belongs to the cyclic nucleotide phosphodiesterase (PDE) family, and PDE8 subfamily. This PDE hydrolyzes the second messenger, cAMP, which is a regulator and mediator of a number of cellular responses to extracellular signals. Thus, by regulating the cellular concentration of cAMP, this protein plays a key role in many important physiological processes. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Jul 2011]

PDE8B Gene

phosphodiesterase 8B

The protein encoded by this gene is a cyclic nucleotide phosphodiesterase (PDE) that catalyzes the hydrolysis of the second messenger cAMP. The encoded protein, which does not hydrolyze cGMP, is resistant to several PDE inhibitors. Defects in this gene are a cause of autosomal dominant striatal degeneration (ADSD). Several transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Jul 2010]

LOC199882 Gene

phosphodiesterase 4D interacting protein-like

PDE4DIPP1 Gene

phosphodiesterase 4D interacting protein pseudogene 1

GDE1 Gene

glycerophosphodiester phosphodiesterase 1

Predicted to enable glycerophosphodiester phosphodiesterase activity; glycerophosphoinositol glycerophosphodiesterase activity; and lysophospholipase activity. Predicted to be involved in N-acylethanolamine metabolic process; ethanolamine metabolic process; and phospholipid metabolic process. Predicted to be located in membrane. Predicted to be active in plasma membrane. [provided by Alliance of Genome Resources, Mar 2025]

PDE4DIP Gene

phosphodiesterase 4D interacting protein

The protein encoded by this gene serves to anchor phosphodiesterase 4D to the Golgi/centrosome region of the cell. Defects in this gene may be a cause of myeloproliferative disorder (MBD) associated with eosinophilia. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2010]

PDE3A Gene

phosphodiesterase 3A, cGMP-inhibited

This gene encodes a member of the cGMP-inhibited cyclic nucleotide phosphodiesterase (cGI-PDE) family. cGI-PDE enzymes hydrolyze both cAMP and cGMP, and play critical roles in many cellular processes by regulating the amplitude and duration of intracellular cyclic nucleotide signals. The encoded protein mediates platelet aggregation and also plays important roles in cardiovascular function by regulating vascular smooth muscle contraction and relaxation. Inhibitors of the encoded protein may be effective in treating congestive heart failure. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Sep 2011]

PDE3B Gene

phosphodiesterase 3B, cGMP-inhibited

Enables 3',5'-cyclic-AMP phosphodiesterase activity. Involved in several processes, including negative regulation of angiogenesis; negative regulation of lipid catabolic process; and regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction. Located in membrane. Part of guanyl-nucleotide exchange factor complex. [provided by Alliance of Genome Resources, Mar 2025]

LOC100996724 Gene

phosphodiesterase 4D interacting protein-like

PDE7B Gene

phosphodiesterase 7B

The 3',5'-cyclic nucleotides cAMP and cGMP function as second messengers in a wide variety of signal transduction pathways. 3',5'-cyclic nucleotide phosphodiesterases (PDEs) catalyze the hydrolysis of cAMP and cGMP to the corresponding 5'-monophosphates and provide a mechanism to downregulate cAMP and cGMP signaling. This gene encodes a cAMP-specific phosphodiesterase, a member of the cyclic nucleotide phosphodiesterase family.[provided by RefSeq, Apr 2009]

LOC100421267 Gene

phosphodiesterase 4D interacting protein pseudogene

PDE6B Gene

phosphodiesterase 6B, cGMP-specific, rod, beta

Photon absorption triggers a signaling cascade in rod photoreceptors that activates cGMP phosphodiesterase (PDE), resulting in the rapid hydrolysis of cGMP, closure of cGMP-gated cation channels, and hyperpolarization of the cell. PDE is a peripheral membrane heterotrimeric enzyme made up of alpha, beta, and gamma subunits. This gene encodes the beta subunit. Mutations in this gene result in retinitis pigmentosa and autosomal dominant congenital stationary night blindness. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2009]

PDE6C Gene

phosphodiesterase 6C, cGMP-specific, cone, alpha prime

This gene encodes the alpha-prime subunit of cone phosphodiesterase, which is composed of a homodimer of two alpha-prime subunits and 3 smaller proteins of 11, 13, and 15 kDa. Mutations in this gene are associated with cone dystrophy type 4 (COD4). [provided by RefSeq, Mar 2010]

PDE6A Gene

phosphodiesterase 6A, cGMP-specific, rod, alpha

This gene encodes the cyclic-GMP (cGMP)-specific phosphodiesterase 6A alpha subunit, expressed in cells of the retinal rod outer segment. The phosphodiesterase 6 holoenzyme is a heterotrimer composed of an alpha, beta, and two gamma subunits. cGMP is an important regulator of rod cell membrane current, and its dynamic concentration is established by phosphodiesterase 6A cGMP hydrolysis and guanylate cyclase cGMP synthesis. The protein is a subunit of a key phototransduction enzyme and participates in processes of transmission and amplification of the visual signal. Mutations in this gene have been identified as one cause of autosomal recessive retinitis pigmentosa. [provided by RefSeq, Jul 2008]

PDE6G Gene

phosphodiesterase 6G, cGMP-specific, rod, gamma

This gene encodes the gamma subunit of cyclic GMP-phosphodiesterase, which is composed of alpha- and beta- catalytic subunits and two identical, inhibitory gamma subunits. This gene is expressed in rod photoreceptors and functions in the phototransduction signaling cascade. It is also expressed in a variety of other tissues, and has been shown to regulate the c-Src protein kinase and G-protein-coupled receptor kinase 2. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2009]

PDE6D Gene

phosphodiesterase 6D, cGMP-specific, rod, delta

This gene encodes the delta subunit of rod-specific photoreceptor phosphodiesterase (PDE), a key enzyme in the phototransduction cascade. A similar protein in cow functions in solubilizing membrane-bound PDE. In addition to its role in the PDE complex, the encoded protein is thought to bind to prenyl groups of proteins to target them to subcellular organelles called cilia. Mutations in this gene are associated with Joubert syndrome-22. Alternative splicing results in multiple splice variants. [provided by RefSeq, Mar 2014]

PDE6H Gene

phosphodiesterase 6H, cGMP-specific, cone, gamma

This gene encodes the inhibitory (or gamma) subunit of the cone-specific cGMP phosphodiesterase, which is a tetramer composed of two catalytic chains (alpha and beta), and two inhibitory chains (gamma). It is specifically expressed in the retina, and is involved in the transmission and amplification of the visual signal. Mutations in this gene are associated with retinal cone dystrophy type 3A (RCD3A). [provided by RefSeq, Mar 2010]

ENPP6 Gene

ectonucleotide pyrophosphatase/phosphodiesterase 6

Enables glycerophosphocholine cholinephosphodiesterase activity. Involved in choline metabolic process and lipid metabolic process. Located in extracellular region and plasma membrane. [provided by Alliance of Genome Resources, Mar 2025]

ENPP7 Gene

ectonucleotide pyrophosphatase/phosphodiesterase 7

The protein encoded by this gene is an intestinal alkaline sphingomyelin phosphodiesterase that converts sphingomyelin to ceramide and phosphocholine. The encoded protein is anchored in the cell membrane, and it may function to protect the intestinal mucosa from inflammation and tumorigenesis. This protein is glycosylated and also exhibits lysophosphatidylcholine hydrolase activity. [provided by RefSeq, Oct 2016]

ENPP4 Gene

ectonucleotide pyrophosphatase/phosphodiesterase 4 (putative)

Enables bis(5'-adenosyl)-triphosphatase activity. Involved in positive regulation of blood coagulation and purine ribonucleoside catabolic process. Located in extracellular exosome and membrane. [provided by Alliance of Genome Resources, Mar 2025]

ENPP5 Gene

ectonucleotide pyrophosphatase/phosphodiesterase 5 (putative)

This gene encodes a type-I transmembrane glycoprotein. Studies in rat suggest the encoded protein may play a role in neuronal cell communications. Alternatively spliced transcript variants have been described. [provided by RefSeq, Feb 2014]

ENPP2 Gene

ectonucleotide pyrophosphatase/phosphodiesterase 2

The protein encoded by this gene functions as both a phosphodiesterase, which cleaves phosphodiester bonds at the 5' end of oligonucleotides, and a phospholipase, which catalyzes production of lysophosphatidic acid (LPA) in extracellular fluids. LPA evokes growth factor-like responses including stimulation of cell proliferation and chemotaxis. This gene product stimulates the motility of tumor cells and has angiogenic properties, and its expression is upregulated in several kinds of carcinomas. The gene product is secreted and further processed to make the biologically active form. Several alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Aug 2008]

ENPP3 Gene

ectonucleotide pyrophosphatase/phosphodiesterase 3

The protein encoded by this gene belongs to a series of ectoenzymes that are involved in hydrolysis of extracellular nucleotides. These ectoenzymes possess ATPase and ATP pyrophosphatase activities and are type II transmembrane proteins. Expression of the related rat mRNA has been found in a subset of immature glial cells and in the alimentary tract. The corresponding rat protein has been detected in the pancreas, small intestine, colon, and liver. The human mRNA is expressed in glioma cells, prostate, and uterus. Expression of the human protein has been detected in uterus, basophils, and mast cells. Two transcript variants, one protein coding and the other non-protein coding, have been found for this gene. [provided by RefSeq, Oct 2015]

ENPP1 Gene

ectonucleotide pyrophosphatase/phosphodiesterase 1

This gene is a member of the ecto-nucleotide pyrophosphatase/phosphodiesterase (ENPP) family. The encoded protein is a type II transmembrane glycoprotein comprising two identical disulfide-bonded subunits. This protein has broad specificity and cleaves a variety of substrates, including phosphodiester bonds of nucleotides and nucleotide sugars and pyrophosphate bonds of nucleotides and nucleotide sugars. This protein may function to hydrolyze nucleoside 5' triphosphates to their corresponding monophosphates and may also hydrolyze diadenosine polyphosphates. Mutations in this gene have been associated with 'idiopathic' infantile arterial calcification, ossification of the posterior longitudinal ligament of the spine (OPLL), and insulin resistance. [provided by RefSeq, Jul 2008]

ENPP7P10 Gene

ectonucleotide pyrophosphatase/phosphodiesterase 7 pseudogene 10

SMPDL3B Gene

sphingomyelin phosphodiesterase, acid-like 3B

Enables phosphoric diester hydrolase activity. Predicted to be involved in membrane lipid catabolic process; negative regulation of inflammatory response; and negative regulation of toll-like receptor signaling pathway. Located in extracellular exosome. [provided by Alliance of Genome Resources, Mar 2025]

SMPDL3A Gene

sphingomyelin phosphodiesterase, acid-like 3A

Enables phosphoric diester hydrolase activity and zinc ion binding activity. Involved in negative regulation of cGAS/STING signaling pathway and nucleoside triphosphate catabolic process. Located in extracellular exosome. Is active in extracellular space. [provided by Alliance of Genome Resources, Mar 2025]

SMPD4P2 Gene

sphingomyelin phosphodiesterase 4, neutral membrane (neutral sphingomyelinase-3) pseudogene 2

SMPD4P1 Gene

sphingomyelin phosphodiesterase 4, neutral membrane (neutral sphingomyelinase-3) pseudogene 1

PDE9A Gene

phosphodiesterase 9A

The protein encoded by this gene catalyzes the hydrolysis of cAMP and cGMP to their corresponding monophosphates. The encoded protein plays a role in signal transduction by regulating the intracellular concentration of these cyclic nucleotides. Multiple transcript variants encoding several different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

PDE1C Gene

phosphodiesterase 1C, calmodulin-dependent 70kDa

This gene encodes an enzyme that belongs to the 3'5'-cyclic nucleotide phosphodiesterase family. Members of this family catalyze hydrolysis of the cyclic nucleotides, cyclic adenosine monophosphate and cyclic guanosine monophosphate, to the corresponding nucleoside 5'-monophosphates. The enzyme encoded by this gene regulates proliferation and migration of vascular smooth muscle cells, and neointimal hyperplasia. This enzyme also plays a role in pathological vascular remodeling by regulating the stability of growth factor receptors, such as PDGF-receptor-beta. [provided by RefSeq, Jul 2016]

PDE1B Gene

phosphodiesterase 1B, calmodulin-dependent

The protein encoded by this gene belongs to the cyclic nucleotide phosphodiesterase (PDE) family, and PDE1 subfamily. Members of the PDE1 family are calmodulin-dependent PDEs that are stimulated by a calcium-calmodulin complex. This PDE has dual-specificity for the second messengers, cAMP and cGMP, with a preference for cGMP as a substrate. cAMP and cGMP function as key regulators of many important physiological processes. Alternatively spliced transcript variants encoding different isoforms have been described for this gene.[provided by RefSeq, Jul 2011]

PDE1A Gene

phosphodiesterase 1A, calmodulin-dependent

Cyclic nucleotide phosphodiesterases (PDEs) play a role in signal transduction by regulating intracellular cyclic nucleotide concentrations through hydrolysis of cAMP and/or cGMP to their respective nucleoside 5-prime monophosphates. Members of the PDE1 family, such as PDE1A, are Ca(2+)/calmodulin (see CALM1; MIM 114180)-dependent PDEs (CaM-PDEs) that are activated by calmodulin in the presence of Ca(2+) (Michibata et al., 2001 [PubMed 11342109]; Fidock et al., 2002 [PubMed 11747989]).[supplied by OMIM, Oct 2009]

PDE12 Gene

phosphodiesterase 12

Enables poly(A)-specific ribonuclease activity. Involved in several processes, including cellular response to interferon-alpha; innate immune response; and mRNA catabolic process. Located in mitochondrial matrix. [provided by Alliance of Genome Resources, Mar 2025]

LOC100631376 Gene

sphingomyelin phosphodiesterase 3, neutral membrane (neutral sphingomyelinase II) pseudogene

LOC150776 Gene

sphingomyelin phosphodiesterase 4, neutral membrane (neutral sphingomyelinase-3) pseudogene

LOC728989 Gene

phosphodiesterase 4D interacting protein pseudogene

GPCPD1 Gene

glycerophosphocholine phosphodiesterase GDE1 homolog (S. cerevisiae)

Predicted to enable glycerophosphocholine phosphodiesterase activity. Predicted to be involved in glycerophospholipid catabolic process. Predicted to act upstream of or within skeletal muscle tissue development. Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Mar 2025]

CNP Gene

2',3'-cyclic nucleotide 3' phosphodiesterase

Predicted to enable 2',3'-cyclic-nucleotide 3'-phosphodiesterase activity. Involved in substantia nigra development. Located in cytoplasm; extracellular space; and microtubule. Implicated in hypomyelinating leukodystrophy 20; multiple sclerosis; and schizophrenia. Biomarker of alcoholic liver cirrhosis; multiple sclerosis; and restless legs syndrome. [provided by Alliance of Genome Resources, Mar 2025]

LOC100421269 Gene

phosphodiesterase 4D interacting protein pseudogene

PDE4A Gene

phosphodiesterase 4A, cAMP-specific

The protein encoded by this gene belongs to the cyclic nucleotide phosphodiesterase (PDE) family, and PDE4 subfamily. This PDE hydrolyzes the second messenger, cAMP, which is a regulator and mediator of a number of cellular responses to extracellular signals. Thus, by regulating the cellular concentration of cAMP, this protein plays a key role in many important physiological processes. Alternatively spliced transcript variants encoding different isoforms have been described for this gene.[provided by RefSeq, Jul 2011]

PDE4B Gene

phosphodiesterase 4B, cAMP-specific

This gene is a member of the type IV, cyclic AMP (cAMP)-specific, cyclic nucleotide phosphodiesterase (PDE) family. The encoded protein regulates the cellular concentrations of cyclic nucleotides and thereby play a role in signal transduction. Altered activity of this protein has been associated with schizophrenia and bipolar affective disorder. Alternative splicing and the use of alternative promoters results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2014]

PDE4C Gene

phosphodiesterase 4C, cAMP-specific

The protein encoded by this gene belongs to the cyclic nucleotide phosphodiesterase (PDE) family, and PDE4 subfamily. This PDE hydrolyzes the second messenger, cAMP, which is a regulator and mediator of a number of cellular responses to extracellular signals. Thus, by regulating the cellular concentration of cAMP, this protein plays a key role in many important physiological processes. Alternatively spliced transcript variants encoding different isoforms have been described for this gene.[provided by RefSeq, Jul 2011]

PDE4D Gene

phosphodiesterase 4D, cAMP-specific

This gene encodes one of four mammalian counterparts to the fruit fly 'dunce' gene. The encoded protein has 3',5'-cyclic-AMP phosphodiesterase activity and degrades cAMP, which acts as a signal transduction molecule in multiple cell types. This gene uses different promoters to generate multiple alternatively spliced transcript variants that encode functional proteins.[provided by RefSeq, Sep 2009]

LOC100421321 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene

SLC25A3P2 Gene

solute carrier family 25 (mitochondrial carrier; phosphate carrier), member 3 pseudogene 2

DNPH1 Gene

2'-deoxynucleoside 5'-phosphate N-hydrolase 1

This gene was identified on the basis of its stimulation by c-Myc protein. The latter is a transcription factor that participates in the regulation of cell proliferation, differentiation, and apoptosis. The exact function of this gene is not known but studies in rat suggest a role in cellular proliferation and c-Myc-mediated transformation. Two alternative transcripts encoding different proteins have been described. [provided by RefSeq, Jul 2008]

LOC100421253 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene

LOC100421244 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene

GAPDHP39 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 39

GAPDHP38 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 38

GAPDHP31 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 31

GAPDHP30 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 30

GAPDHP33 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 33

GAPDHP32 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 32

GAPDHP35 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 35

GAPDHP34 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 34

GAPDHP37 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 37

GAPDHP36 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 36

LOC100421247 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene

LOC100421243 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene

ALG5 Gene

ALG5, dolichyl-phosphate beta-glucosyltransferase

This gene encodes a member of the glycosyltransferase 2 family. The encoded protein participates in glucosylation of the oligomannose core in N-linked glycosylation of proteins. The addition of glucose residues to the oligomannose core is necessary to ensure substrate recognition, and therefore, effectual transfer of the oligomannose core to the nascent glycoproteins. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2008]

RPEP2 Gene

ribulose-5-phosphate-3-epimerase pseudogene 2

RPEP3 Gene

ribulose-5-phosphate-3-epimerase pseudogene 3

RPEP1 Gene

ribulose-5-phosphate-3-epimerase pseudogene 1

RPEP6 Gene

ribulose-5-phosphate-3-epimerase pseudogene 6

RPEP4 Gene

ribulose-5-phosphate-3-epimerase pseudogene 4

H6PD Gene

hexose-6-phosphate dehydrogenase (glucose 1-dehydrogenase)

There are 2 forms of glucose-6-phosphate dehydrogenase. G form is X-linked and H form, encoded by this gene, is autosomally linked. This H form shows activity with other hexose-6-phosphates, especially galactose-6-phosphate, whereas the G form is specific for glucose-6-phosphate. Both forms are present in most tissues, but H form is not found in red cells. [provided by RefSeq, Jul 2008]

AGPS Gene

alkylglycerone phosphate synthase

This gene is a member of the FAD-binding oxidoreductase/transferase type 4 family. It encodes a protein that catalyzes the second step of ether lipid biosynthesis in which acyl-dihydroxyacetonephosphate (DHAP) is converted to alkyl-DHAP by the addition of a long chain alcohol and the removal of a long-chain acid anion. The protein is localized to the inner aspect of the peroxisomal membrane and requires FAD as a cofactor. Mutations in this gene have been associated with rhizomelic chondrodysplasia punctata, type 3 and Zellweger syndrome. [provided by RefSeq, Jul 2008]

LOC100421100 Gene

RNA terminal phosphate cyclase-like 1 pseudogene

ISYNA1 Gene

inositol-3-phosphate synthase 1

This gene encodes an inositol-3-phosphate synthase enzyme. The encoded protein plays a critical role in the myo-inositol biosynthesis pathway by catalyzing the rate-limiting conversion of glucose 6-phosphate to myoinositol 1-phosphate. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene, and a pseudogene of this gene is located on the short arm of chromosome 4. [provided by RefSeq, Nov 2011]

SLC37A1 Gene

solute carrier family 37 (glucose-6-phosphate transporter), member 1

The protein encoded by this gene localizes to the endoplasmic reticulum (ER) membrane. This protein translocates glucose-6-phosphate from the cytoplasm into the lumen of the ER for hydrolysis into glucose by another ER membrane protein. This gene is a member of the solute carrier 37 gene family. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016]

MRI1 Gene

methylthioribose-1-phosphate isomerase 1

This enzyme functions in the methionine salvage pathway by catalyzing the interconversion of methylthioribose-1-phosphate and methythioribulose-1-phosphate. Elevated expression of the encoded protein is associated with metastatic melanoma and this protein promotes melanoma cell invasion independent of its enzymatic activity. Mutations in this gene may be associated with vanishing white matter disease (VMWD). [provided by RefSeq, Jul 2016]

PNPO Gene

pyridoxamine 5'-phosphate oxidase

The enzyme encoded by this gene catalyzes the terminal, rate-limiting step in the synthesis of pyridoxal 5'-phosphate, also known as vitamin B6. Vitamin B6 is a required co-factor for enzymes involved in both homocysteine metabolism and synthesis of neurotransmitters such as catecholamine. Mutations in this gene result in pyridoxamine 5'-phosphate oxidase (PNPO) deficiency, a form of neonatal epileptic encephalopathy. [provided by RefSeq, Oct 2008]

SLC25A3P3 Gene

solute carrier family 25 (mitochondrial carrier; phosphate carrier), member 3 pseudogene

SLC25A3P1 Gene

solute carrier family 25 (mitochondrial carrier; phosphate carrier), member 3 pseudogene 1

Predicted to be located in membrane. [provided by Alliance of Genome Resources, Mar 2025]

SGPL1 Gene

sphingosine-1-phosphate lyase 1

Enables sphinganine-1-phosphate aldolase activity. Involved in apoptotic signaling pathway; fatty acid metabolic process; and sphingolipid metabolic process. Located in endoplasmic reticulum. Implicated in nephrotic syndrome type 14. [provided by Alliance of Genome Resources, Mar 2025]

DPM3 Gene

dolichyl-phosphate mannosyltransferase polypeptide 3

Dolichol-phosphate mannose (Dol-P-Man) serves as a donor of mannosyl residues on the lumenal side of the endoplasmic reticulum (ER). Lack of Dol-P-Man results in defective surface expression of GPI-anchored proteins. Dol-P-Man is synthesized from GDP-mannose and dolichol-phosphate on the cytosolic side of the ER by the enzyme dolichyl-phosphate mannosyltransferase. The protein encoded by this gene is a subunit of dolichyl-phosphate mannosyltransferase and acts as a stabilizer subunit of the dolichyl-phosphate mannosyltransferase complex. [provided by RefSeq, Jul 2008]

DPM2 Gene

dolichyl-phosphate mannosyltransferase polypeptide 2, regulatory subunit

Dolichol-phosphate mannose (Dol-P-Man) serves as a donor of mannosyl residues on the lumenal side of the endoplasmic reticulum (ER). Lack of Dol-P-Man results in defective surface expression of GPI-anchored proteins. Dol-P-Man is synthesized from GDP-mannose and dolichol-phosphate on the cytosolic side of the ER by the enzyme dolichyl-phosphate mannosyltransferase. The protein encoded by this gene is a hydrophobic protein that contains 2 predicted transmembrane domains and a putative ER localization signal near the C terminus. This protein associates with DPM1 in vivo and is required for the ER localization and stable expression of DPM1 and also enhances the binding of dolichol-phosphate to DPM1. [provided by RefSeq, Jul 2008]

DPM1 Gene

dolichyl-phosphate mannosyltransferase polypeptide 1, catalytic subunit

Dolichol-phosphate mannose (Dol-P-Man) serves as a donor of mannosyl residues on the lumenal side of the endoplasmic reticulum (ER). Lack of Dol-P-Man results in defective surface expression of GPI-anchored proteins. Dol-P-Man is synthesized from GDP-mannose and dolichol-phosphate on the cytosolic side of the ER by the enzyme dolichyl-phosphate mannosyltransferase. Human DPM1 lacks a carboxy-terminal transmembrane domain and signal sequence and is regulated by DPM2. Mutations in this gene are associated with congenital disorder of glycosylation type Ie. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2015]

GAPDHP2 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene 2

GAPDHP1 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene 1

LOC100421256 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene

LOC100421251 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene

LOC100421304 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene

GAPDHP55 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 55

GAPDHP54 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 54

GAPDHP53 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 53

GAPDHP52 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 52

GAPDHP51 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 51

GAPDHP50 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 50

RPIA Gene

ribose 5-phosphate isomerase A

The protein encoded by this gene is an enzyme, which catalyzes the reversible conversion between ribose-5-phosphate and ribulose-5-phosphate in the pentose-phosphate pathway. This gene is highly conserved in most organisms. The enzyme plays an essential role in the carbohydrate metabolism. Mutations in this gene cause ribose 5-phosphate isomerase deficiency. A pseudogene is found on chromosome 18. [provided by RefSeq, Mar 2010]

PIP4K2A Gene

phosphatidylinositol-5-phosphate 4-kinase, type II, alpha

Phosphatidylinositol-5,4-bisphosphate, the precursor to second messengers of the phosphoinositide signal transduction pathways, is thought to be involved in the regulation of secretion, cell proliferation, differentiation, and motility. The protein encoded by this gene is one of a family of enzymes capable of catalyzing the phosphorylation of phosphatidylinositol-5-phosphate on the fourth hydroxyl of the myo-inositol ring to form phosphatidylinositol-5,4-bisphosphate. The amino acid sequence of this enzyme does not show homology to other kinases, but the recombinant protein does exhibit kinase activity. This gene is a member of the phosphatidylinositol-5-phosphate 4-kinase family. [provided by RefSeq, Jul 2008]

PIP4K2C Gene

phosphatidylinositol-5-phosphate 4-kinase, type II, gamma

Enables 1-phosphatidylinositol-4-phosphate 5-kinase activity and identical protein binding activity. Involved in 1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate biosynthetic process; negative regulation of insulin receptor signaling pathway; and positive regulation of autophagosome assembly. Located in several cellular components, including autophagosome; cytosol; and nucleoplasm. [provided by Alliance of Genome Resources, Mar 2025]

PIP4K2B Gene

phosphatidylinositol-5-phosphate 4-kinase, type II, beta

The protein encoded by this gene catalyzes the phosphorylation of phosphatidylinositol-5-phosphate on the fourth hydroxyl of the myo-inositol ring to form phosphatidylinositol-5,4-bisphosphate. This gene is a member of the phosphatidylinositol-5-phosphate 4-kinase family. The encoded protein sequence does not show similarity to other kinases, but the protein does exhibit kinase activity. Additionally, the encoded protein interacts with p55 TNF receptor. [provided by RefSeq, Jul 2008]

GPAM Gene

glycerol-3-phosphate acyltransferase, mitochondrial

This gene encodes a mitochondrial enzyme which prefers saturated fatty acids as its substrate for the synthesis of glycerolipids. This metabolic pathway's first step is catalyzed by the encoded enzyme. Two forms for this enzyme exist, one in the mitochondria and one in the endoplasmic reticulum. Two alternatively spliced transcript variants have been described for this gene. [provided by RefSeq, Oct 2011]

PCYT1A Gene

phosphate cytidylyltransferase 1, choline, alpha

This gene belongs to the cytidylyltransferase family and is involved in the regulation of phosphatidylcholine biosynthesis. Mutations in this gene are associated with spondylometaphyseal dysplasia with cone-rod dystrophy. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Aug 2015]

PCYT1B Gene

phosphate cytidylyltransferase 1, choline, beta

The protein encoded by this gene belongs to the cytidylyltransferase family. It is involved in the regulation of phosphatidylcholine biosynthesis. Several alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]

PIK3C2B Gene

phosphatidylinositol-4-phosphate 3-kinase, catalytic subunit type 2 beta

The protein encoded by this gene belongs to the phosphoinositide 3-kinase (PI3K) family. PI3-kinases play roles in signaling pathways involved in cell proliferation, oncogenic transformation, cell survival, cell migration, and intracellular protein trafficking. This protein contains a lipid kinase catalytic domain as well as a C-terminal C2 domain, a characteristic of class II PI3-kinases. C2 domains act as calcium-dependent phospholipid binding motifs that mediate translocation of proteins to membranes, and may also mediate protein-protein interactions. The PI3-kinase activity of this protein is sensitive to low nanomolar levels of the inhibitor wortmanin. The C2 domain of this protein was shown to bind phospholipids but not Ca2+, which suggests that this enzyme may function in a calcium-independent manner. [provided by RefSeq, Jul 2008]

PIK3C2A Gene

phosphatidylinositol-4-phosphate 3-kinase, catalytic subunit type 2 alpha

The protein encoded by this gene belongs to the phosphoinositide 3-kinase (PI3K) family. PI3-kinases play roles in signaling pathways involved in cell proliferation, oncogenic transformation, cell survival, cell migration, and intracellular protein trafficking. This protein contains a lipid kinase catalytic domain as well as a C-terminal C2 domain, a characteristic of class II PI3-kinases. C2 domains act as calcium-dependent phospholipid binding motifs that mediate translocation of proteins to membranes, and may also mediate protein-protein interactions. The PI3-kinase activity of this protein is not sensitive to nanomolar levels of the inhibitor wortmanin. This protein was shown to be able to be activated by insulin and may be involved in integrin-dependent signaling. [provided by RefSeq, Jul 2008]

PIK3C2G Gene

phosphatidylinositol-4-phosphate 3-kinase, catalytic subunit type 2 gamma

The protein encoded by this gene belongs to the phosphoinositide 3-kinase (PI3K) family. PI3-kinases play roles in signaling pathways involved in cell proliferation, oncogenic transformation, cell survival, cell migration, and intracellular protein trafficking. This protein contains a lipid kinase catalytic domain as well as a C-terminal C2 domain, a characteristic of class II PI3-kinases. C2 domains act as calcium-dependent phospholipid binding motifs that mediate translocation of proteins to membranes, and may also mediate protein-protein interactions. This gene may play a role in several diseases, including type II diabetes. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014]

PIP5K1P1 Gene

phosphatidylinositol-4-phosphate 5-kinase, type I, pseudogene 1

PIP5K1P2 Gene

phosphatidylinositol-4-phosphate 5-kinase, type I, pseudogene 2

GNPTAB Gene

N-acetylglucosamine-1-phosphate transferase, alpha and beta subunits

This gene encodes two of three subunit types of the membrane-bound enzyme N-acetylglucosamine-1-phosphotransferase, a heterohexameric complex composed of two alpha, two beta, and two gamma subunits. The encoded protein is proteolytically cleaved at the Lys928-Asp929 bond to yield mature alpha and beta polypeptides while the gamma subunits are the product of a distinct gene (GeneID 84572). In the Golgi apparatus, the heterohexameric complex catalyzes the first step in the synthesis of mannose 6-phosphate recognition markers on certain oligosaccharides of newly synthesized lysosomal enzymes. These recognition markers are essential for appropriate trafficking of lysosomal enzymes. Mutations in this gene have been associated with both mucolipidosis II and mucolipidosis IIIA.[provided by RefSeq, May 2010]

GAPDHP76 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene 76

GAPDHP57 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 57

AGPAT6 Gene

1-acylglycerol-3-phosphate O-acyltransferase 6

Lysophosphatidic acid acyltransferases (EC 2.3.1.51) catalyze the conversion of lysophosphatidic acid (LPA) to phosphatidic acid (PA). LPA and PA are involved in signal transduction and lipid biosynthesis.[supplied by OMIM, Apr 2004]

AGPAT5 Gene

1-acylglycerol-3-phosphate O-acyltransferase 5

This gene encodes a member of the 1-acylglycerol-3-phosphate O-acyltransferase family. This integral membrane protein converts lysophosphatidic acid to phosphatidic acid, the second step in de novo phospholipid biosynthesis. A pseudogene of this gene is present on the Y chromosome. [provided by RefSeq, Aug 2014]

AGPAT4 Gene

1-acylglycerol-3-phosphate O-acyltransferase 4

This gene encodes a member of the 1-acylglycerol-3-phosphate O-acyltransferase family. This integral membrane protein converts lysophosphatidic acid to phosphatidic acid, the second step in de novo phospholipid biosynthesis. [provided by RefSeq, Jul 2008]

AGPAT3 Gene

1-acylglycerol-3-phosphate O-acyltransferase 3

The protein encoded by this gene is an acyltransferase that converts lysophosphatidic acid into phosphatidic acid, which is the second step in the de novo phospholipid biosynthetic pathway. The encoded protein may be an integral membrane protein. Two transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jul 2008]

AGPAT2 Gene

1-acylglycerol-3-phosphate O-acyltransferase 2

This gene encodes a member of the 1-acylglycerol-3-phosphate O-acyltransferase family. The protein is located within the endoplasmic reticulum membrane and converts lysophosphatidic acid to phosphatidic acid, the second step in de novo phospholipid biosynthesis. Mutations in this gene have been associated with congenital generalized lipodystrophy (CGL), or Berardinelli-Seip syndrome, a disease characterized by a near absence of adipose tissue and severe insulin resistance. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jul 2008]

AGPAT1 Gene

1-acylglycerol-3-phosphate O-acyltransferase 1

This gene encodes an enzyme that converts lysophosphatidic acid (LPA) into phosphatidic acid (PA). LPA and PA are two phospholipids involved in signal transduction and in lipid biosynthesis in cells. This enzyme localizes to the endoplasmic reticulum. This gene is located in the class III region of the human major histocompatibility complex. Alternative splicing results in two transcript variants encoding the same protein. [provided by RefSeq, Jul 2008]

AGPAT9 Gene

1-acylglycerol-3-phosphate O-acyltransferase 9

This gene encodes a member of the lysophosphatidic acid acyltransferase protein family. The encoded protein is an enzyme which catalyzes the conversion of glycerol-3-phosphate to lysophosphatidic acid in the synthesis of triacylglycerol. Multiple alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Jan 2012]

SLC34A1 Gene

solute carrier family 34 (type II sodium/phosphate cotransporter), member 1

Enables sodium:phosphate symporter activity. Involved in several processes, including phosphate ion homeostasis; response to cadmium ion; and response to lead ion. Located in several cellular components, including apical plasma membrane; mitotic spindle; and nuclear speck. Implicated in several diseases, including Fanconi syndrome (multiple); chronic kidney disease; hereditary hypophosphatemic rickets with hypercalciuria; hypophosphatemic nephrolithiasis/osteoporosis 1; and nephrolithiasis. [provided by Alliance of Genome Resources, Mar 2025]

SLC34A3 Gene

solute carrier family 34 (type II sodium/phosphate cotransporter), member 3

This gene encodes a member of SLC34A transporter family of proteins, and is expressed primarily in the kidney. It is involved in transporting phosphate into cells via sodium cotransport in the renal brush border membrane, and contributes to the maintenance of inorganic phosphate concentration in the kidney. Mutations in this gene are associated with hereditary hypophosphatemic rickets with hypercalciuria. Alternatively spliced transcript variants varying in the 5' UTR have been found for this gene.[provided by RefSeq, Apr 2010]

SLC34A2 Gene

solute carrier family 34 (type II sodium/phosphate cotransporter), member 2

The protein encoded by this gene is a pH-sensitive sodium-dependent phosphate transporter. Phosphate uptake is increased at lower pH. Defects in this gene are a cause of pulmonary alveolar microlithiasis. Three transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, May 2010]

CPTP Gene

ceramide-1-phosphate transfer protein

Enables ceramide 1-phosphate binding activity and ceramide 1-phosphate transfer activity. Involved in ceramide 1-phosphate transport; negative regulation of NLRP3 inflammasome complex assembly; and negative regulation of metabolic process. Located in cytosol. [provided by Alliance of Genome Resources, Mar 2025]

RPIAP1 Gene

ribose 5-phosphate isomerase A pseudogene 1

GAPDHP26 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 26

GAPDHP25 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 25

GAPDHP22 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 22

GAPDHP23 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 23

GAPDHP20 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 20

GAPDHP21 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 21

GAPDHP29 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 29

RPE Gene

ribulose-5-phosphate-3-epimerase

Enables D-ribulose-phosphate 3-epimerase activity; metal ion binding activity; and protein homodimerization activity. Involved in carbohydrate metabolic process and pentose-phosphate shunt. Located in extracellular exosome. [provided by Alliance of Genome Resources, Mar 2025]

SLC25A23 Gene

solute carrier family 25 (mitochondrial carrier; phosphate carrier), member 23

Enables ADP:phosphate antiporter activity and ATP:phosphate antiporter activity. Involved in mitochondrial transmembrane transport; positive regulation of mitochondrial calcium ion concentration; and regulation of cellular hyperosmotic salinity response. Located in mitochondrion. [provided by Alliance of Genome Resources, Mar 2025]

SLC25A24 Gene

solute carrier family 25 (mitochondrial carrier; phosphate carrier), member 24

This gene encodes a carrier protein that transports ATP-Mg exchanging it for phosphate. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2012]

SLC25A25 Gene

solute carrier family 25 (mitochondrial carrier; phosphate carrier), member 25

The protein encoded by this gene belongs to the family of calcium-binding mitochondrial carriers, with a characteristic mitochondrial carrier domain at the C-terminus. These proteins are found in the inner membranes of mitochondria, and function as transport proteins. They shuttle metabolites, nucleotides and cofactors through the mitochondrial membrane and thereby connect and/or regulate cytoplasm and matrix functions. This protein may function as an ATP-Mg/Pi carrier that mediates the transport of Mg-ATP in exchange for phosphate, and likely responsible for the net uptake or efflux of adenine nucleotides into or from the mitochondria. Alternatively spliced transcript variants encoding different isoforms with a common C-terminus but variable N-termini have been described for this gene. [provided by RefSeq, Jul 2012]

GPD1 Gene

glycerol-3-phosphate dehydrogenase 1 (soluble)

This gene encodes a member of the NAD-dependent glycerol-3-phosphate dehydrogenase family. The encoded protein plays a critical role in carbohydrate and lipid metabolism by catalyzing the reversible conversion of dihydroxyacetone phosphate (DHAP) and reduced nicotine adenine dinucleotide (NADH) to glycerol-3-phosphate (G3P) and NAD+. The encoded cytosolic protein and mitochondrial glycerol-3-phosphate dehydrogenase also form a glycerol phosphate shuttle that facilitates the transfer of reducing equivalents from the cytosol to mitochondria. Mutations in this gene are a cause of transient infantile hypertriglyceridemia. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Mar 2012]

GPD2 Gene

glycerol-3-phosphate dehydrogenase 2 (mitochondrial)

The protein encoded by this gene localizes to the inner mitochondrial membrane and catalyzes the conversion of glycerol-3-phosphate to dihydroxyacetone phosphate, using FAD as a cofactor. Along with GDP1, the encoded protein constitutes the glycerol phosphate shuttle, which reoxidizes NADH formed during glycolysis. Two transcript variants encoding the same protein have been found for this gene.[provided by RefSeq, Jan 2010]

LOC100421409 Gene

glucosamine-phosphate N-acetyltransferase 1 pseudogene

GALT Gene

galactose-1-phosphate uridylyltransferase

Galactose-1-phosphate uridyl transferase (GALT) catalyzes the second step of the Leloir pathway of galactose metabolism, namely the conversion of UDP-glucose + galactose-1-phosphate to glucose-1-phosphate + UDP-galactose. The absence of this enzyme results in classic galactosemia in humans and can be fatal in the newborn period if lactose is not removed from the diet. The pathophysiology of galactosemia has not been clearly defined. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2012]

GAPDHP24 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 24

GAPDHP28 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 28

GAPDHP68 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 68

GPAT2 Gene

glycerol-3-phosphate acyltransferase 2, mitochondrial

Enables glycerol-3-phosphate O-acyltransferase activity. Predicted to be involved in glycerol-3-phosphate metabolic process; glycerolipid biosynthetic process; and piRNA processing. Located in mitochondrion. [provided by Alliance of Genome Resources, Mar 2025]

RPEL1 Gene

ribulose-5-phosphate-3-epimerase-like 1

Predicted to enable D-ribulose-phosphate 3-epimerase activity and metal ion binding activity. Predicted to be involved in carbohydrate metabolic process and pentose-phosphate shunt, non-oxidative branch. Predicted to be active in cytosol. [provided by Alliance of Genome Resources, Mar 2025]

LOC653924 Gene

glycerol-3-phosphate acyltransferase 2, mitochondrial pseudogene

GNPNAT1 Gene

glucosamine-phosphate N-acetyltransferase 1

Enables identical protein binding activity. Predicted to be involved in UDP-N-acetylglucosamine biosynthetic process. Predicted to act upstream of or within cellular response to leukemia inhibitory factor. Predicted to be located in endoplasmic reticulum-Golgi intermediate compartment and late endosome. [provided by Alliance of Genome Resources, Mar 2025]

SLC37A2 Gene

solute carrier family 37 (glucose-6-phosphate transporter), member 2

Enables glucose 6-phosphate:phosphate antiporter activity. Involved in glucose-6-phosphate transport and phosphate ion transmembrane transport. Located in endoplasmic reticulum membrane. [provided by Alliance of Genome Resources, Mar 2025]

SLC37A4 Gene

solute carrier family 37 (glucose-6-phosphate transporter), member 4

This gene regulates glucose-6-phosphate transport from the cytoplasm to the lumen of the endoplasmic reticulum, in order to maintain glucose homeostasis. It also plays a role in ATP-mediated calcium sequestration in the lumen of the endoplasmic reticulum. Mutations in this gene have been associated with various forms of glycogen storage disease. Alternative splicing in this gene results in multiple transcript variants.[provided by RefSeq, Aug 2009]

PHEX Gene

phosphate regulating endopeptidase homolog, X-linked

The protein encoded by this gene is a transmembrane endopeptidase that belongs to the type II integral membrane zinc-dependent endopeptidase family. The protein is thought to be involved in bone and dentin mineralization and renal phosphate reabsorption. Mutations in this gene cause X-linked hypophosphatemic rickets. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2013]

GNPTG Gene

N-acetylglucosamine-1-phosphate transferase, gamma subunit

This gene encodes the gamma sunbunit of the N-acetylglucosamine-1-phosphotransferase complex. This hexameric complex, composed of alpha, beta and gamma subunits, catalyzes the first step in synthesis of a mannose 6-phosphate lysosomal recognition marker. This enzyme complex is necessary for targeting of lysosomal hydrolases to the lysosome. Mutations in the gene encoding the gamma subunit have been associated with mucolipidosis IIIC, also known as mucolipidosis III gamma.[provided by RefSeq, Feb 2010]

AGPAT5P1 Gene

1-acylglycerol-3-phosphate O-acyltransferase 5 pseudogene 1

GPD1L Gene

glycerol-3-phosphate dehydrogenase 1-like

The protein encoded by this gene catalyzes the conversion of sn-glycerol 3-phosphate to glycerone phosphate. The encoded protein is found in the cytoplasm, associated with the plasma membrane, where it binds the sodium channel, voltage-gated, type V, alpha subunit (SCN5A). Defects in this gene are a cause of Brugada syndrome type 2 (BRS2) as well as sudden infant death syndrome (SIDS). [provided by RefSeq, Jul 2010]

GAPDHP75 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene 75

GAPDHP74 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene 74

GAPDHP71 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene 71

GAPDHP70 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 70

GAPDHP73 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene 73

GAPDHP72 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene 72

G6PD Gene

glucose-6-phosphate dehydrogenase

This gene encodes glucose-6-phosphate dehydrogenase. This protein is a cytosolic enzyme encoded by a housekeeping X-linked gene whose main function is to produce NADPH, a key electron donor in the defense against oxidizing agents and in reductive biosynthetic reactions. G6PD is remarkable for its genetic diversity. Many variants of G6PD, mostly produced from missense mutations, have been described with wide ranging levels of enzyme activity and associated clinical symptoms. G6PD deficiency may cause neonatal jaundice, acute hemolysis, or severe chronic non-spherocytic hemolytic anemia. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

GAPDH Gene

glyceraldehyde-3-phosphate dehydrogenase

This gene encodes a member of the glyceraldehyde-3-phosphate dehydrogenase protein family. The encoded protein has been identified as a moonlighting protein based on its ability to perform mechanistically distinct functions. The product of this gene catalyzes an important energy-yielding step in carbohydrate metabolism, the reversible oxidative phosphorylation of glyceraldehyde-3-phosphate in the presence of inorganic phosphate and nicotinamide adenine dinucleotide (NAD). The encoded protein has additionally been identified to have uracil DNA glycosylase activity in the nucleus. Also, this protein contains a peptide that has antimicrobial activity against E. coli, P. aeruginosa, and C. albicans. Studies of a similar protein in mouse have assigned a variety of additional functions including nitrosylation of nuclear proteins, the regulation of mRNA stability, and acting as a transferrin receptor on the cell surface of macrophage. Many pseudogenes similar to this locus are present in the human genome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2014]

LPPR3 Gene

lipid phosphate phosphatase-related protein type 3

The proteins in the lipid phosphate phosphatase (LPP) family, including PRG2, are integral membrane proteins that modulate bioactive lipid phosphates including phosphatidate, lysophosphatidate, and sphingosine-1-phosphate in the context of cell migration, neurite retraction, and mitogenesis (Brauer et al., 2003 [PubMed 12730698]).[supplied by OMIM, Mar 2008]

GAPDHP65 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 65

GFPT1 Gene

glutamine--fructose-6-phosphate transaminase 1

This gene encodes the first and rate-limiting enzyme of the hexosamine pathway and controls the flux of glucose into the hexosamine pathway. The product of this gene catalyzes the formation of glucosamine 6-phosphate. [provided by RefSeq, Sep 2008]

GFPT2 Gene

glutamine-fructose-6-phosphate transaminase 2

Enables glutamine-fructose-6-phosphate transaminase (isomerizing) activity. Involved in UDP-N-acetylglucosamine biosynthetic process and fructose 6-phosphate metabolic process. Predicted to be located in cytosol. Implicated in type 2 diabetes mellitus. [provided by Alliance of Genome Resources, Mar 2025]

HPBP Gene

phosphate binding apolipoprotein

LOC401767 Gene

1-acylglycerol-3-phosphate O-acyltransferase 6 (lysophosphatidic acid acyltransferase, zeta) pseudogene

CAD Gene

carbamoyl-phosphate synthetase 2, aspartate transcarbamylase, and dihydroorotase

The de novo synthesis of pyrimidine nucleotides is required for mammalian cells to proliferate. This gene encodes a trifunctional protein which is associated with the enzymatic activities of the first 3 enzymes in the 6-step pathway of pyrimidine biosynthesis: carbamoylphosphate synthetase (CPS II), aspartate transcarbamoylase, and dihydroorotase. This protein is regulated by the mitogen-activated protein kinase (MAPK) cascade, which indicates a direct link between activation of the MAPK cascade and de novo biosynthesis of pyrimidine nucleotides. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Apr 2015]

LOC100421317 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene

LOC100421314 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene

SLC20A2 Gene

solute carrier family 20 (phosphate transporter), member 2

This gene encodes a member of the inorganic phosphate transporter family. The encoded protein is a type 3 sodium-dependent phosphate symporter that plays an important role in phosphate homeostasis by mediating cellular phosphate uptake. The encoded protein also confers susceptibility to viral infection as a gamma-retroviral receptor. Mutations in this gene may play a role in familial idiopathic basal ganglia calcification. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Mar 2012]

SLC20A1 Gene

solute carrier family 20 (phosphate transporter), member 1

The protein encoded by this gene is a sodium-phosphate symporter that absorbs phosphate from interstitial fluid for use in cellular functions such as metabolism, signal transduction, and nucleic acid and lipid synthesis. The encoded protein is also a retroviral receptor, causing human cells to be susceptible to infection by gibbon ape leukemia virus, simian sarcoma-associated virus, feline leukemia virus subgroup B, and 10A1 murine leukemia virus.[provided by RefSeq, Mar 2011]

LOC645433 Gene

inositol-3-phosphate synthase 1 pseudogene

LOC729999 Gene

glycerol-3-phosphate dehydrogenase 2 (mitochondrial) pseudogene

LOC100423044 Gene

solute carrier family 34 (type II sodium/phosphate cotransporter), member 2 pseudogene

SLC20A1P1 Gene

solute carrier family 20 (phosphate transporter), member 1 pseudogene 1

SLC20A1P3 Gene

solute carrier family 20 (phosphate transporter), member 1 pseudogene 3

SLC20A1P2 Gene

solute carrier family 20 (phosphate transporter), member 1 pseudogene 2

SGPP2 Gene

sphingosine-1-phosphate phosphatase 2

The protein encoded by this gene is a transmembrane protein that degrades the bioactive signaling molecule sphingosine 1-phosphate. The encoded protein is induced during inflammatory responses and has been shown to be downregulated by the microRNA-31 tumor suppressor. Alternative splice variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2016]

SGPP1 Gene

sphingosine-1-phosphate phosphatase 1

Sphingosine-1-phosphate (S1P) is a bioactive sphingolipid metabolite that regulates diverse biologic processes. SGPP1 catalyzes the degradation of S1P via salvage and recycling of sphingosine into long-chain ceramides (Mandala et al., 2000 [PubMed 10859351]; Le Stunff et al., 2007 [PubMed 17895250]).[supplied by OMIM, Jun 2009]

LOC100421261 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene

LOC100421264 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene

LOC100420790 Gene

glucosamine-6-phosphate deaminase 2 pseudogene

GAPDHP48 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 48

GAPDHP49 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 49

GAPDHP44 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 44

GAPDHP45 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 45

GAPDHP46 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 46

GAPDHP47 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 47

GAPDHP40 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 40

GAPDHP41 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 41

GAPDHP42 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 42

GAPDHP43 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 43

SLC25A3 Gene

solute carrier family 25 (mitochondrial carrier; phosphate carrier), member 3

The protein encoded by this gene catalyzes the transport of phosphate into the mitochondrial matrix, either by proton cotransport or in exchange for hydroxyl ions. The protein contains three related segments arranged in tandem which are related to those found in other characterized members of the mitochondrial carrier family. Both the N-terminal and C-terminal regions of this protein protrude toward the cytosol. Multiple alternatively spliced transcript variants have been isolated. [provided by RefSeq, Jul 2008]

DPAGT1 Gene

dolichyl-phosphate (UDP-N-acetylglucosamine) N-acetylglucosaminephosphotransferase 1 (GlcNAc-1-P transferase)

The protein encoded by this gene is an enzyme that catalyzes the first step in the dolichol-linked oligosaccharide pathway for glycoprotein biosynthesis. This enzyme belongs to the glycosyltransferase family 4. This protein is an integral membrane protein of the endoplasmic reticulum. The congenital disorder of glycosylation type Ij is caused by mutation in the gene encoding this enzyme. [provided by RefSeq, Jul 2008]

RCL1 Gene

RNA terminal phosphate cyclase-like 1

Predicted to enable RNA endonuclease activity. Involved in ribosomal small subunit biogenesis. Part of small-subunit processome. [provided by Alliance of Genome Resources, Mar 2025]

LPPR5 Gene

lipid phosphate phosphatase-related protein type 5

The protein encoded by this gene is a type 2 member of the phosphatidic acid phosphatase (PAP) family. All type 2 members of this protein family contain 6 transmembrane regions, and a consensus N-glycosylation site. PAPs convert phosphatidic acid to diacylglycerol, and function in de novo synthesis of glycerolipids as well as in receptor-activated signal transduction mediated by phospholipase D. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jul 2008]

LPPR4 Gene

lipid phosphate phosphatase-related protein type 4

The protein encoded by this gene belongs to the lipid phosphate phosphatase (LPP) family. LPPs catalyze the dephosphorylation of a number of bioactive lipid mediators that regulate a variety of cell functions. This protein is specifically expressed in neurons. It is located in the membranes of outgrowing axons and has been shown to be important for axonal outgrowth during development and regenerative sprouting. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Oct 2009]

LPPR2 Gene

lipid phosphate phosphatase-related protein type 2

Predicted to enable phosphatidate phosphatase activity. Predicted to be involved in phospholipid dephosphorylation; phospholipid metabolic process; and signal transduction. Predicted to be located in membrane. Predicted to be active in plasma membrane. [provided by Alliance of Genome Resources, Mar 2025]

LPPR1 Gene

lipid phosphate phosphatase-related protein type 1

This gene encodes a member of the plasticity-related gene (PRG) family. Members of the PRG family mediate lipid phosphate phosphatase activity in neurons and are known to be involved in neuronal plasticity. The protein encoded by this gene does not perform its function through enzymatic phospholipid degradation. This gene is strongly expressed in brain. It shows dynamic expression regulation during brain development and neuronal excitation. Alternatively spliced transcript variants encoding the same protein have been observed. [provided by RefSeq, Jul 2008]

PIP5KL1 Gene

phosphatidylinositol-4-phosphate 5-kinase-like 1

PIP5KL1 is a phosphoinositide kinase-like protein that lacks intrinsic lipid kinase activity but associates with type I PIPKs (see PIP5K1A; MIM 603275) and may play a role in localization of PIPK activity (Chang et al., 2004 [PubMed 14701839]).[supplied by OMIM, Jun 2009]

GAPDHP17 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene 17

GAPDHP16 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene 16

GAPDHP14 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene 14

GAPDHP19 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 19

RTCB Gene

RNA 2',3'-cyclic phosphate and 5'-OH ligase

Enables RNA ligase (GTP) activity and vinculin binding activity. Involved in tRNA splicing, via endonucleolytic cleavage and ligation. Located in cytosol and nucleoplasm. Part of tRNA-splicing ligase complex. [provided by Alliance of Genome Resources, Mar 2025]

RTCA Gene

RNA 3'-terminal phosphate cyclase

This gene encodes a member of the RNA 3'-phosphate cyclase family. The encoded protein plays a role in RNA metabolism by catalyzing the ATP-dependent conversion of the 3'-phosphate of RNA substrates to a 2',3'-cyclic phosphodiester. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Feb 2012]

GAPDHP59 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene 59

GAPDHP58 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 58

GAPDHP56 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 56

GAPDHS Gene

glyceraldehyde-3-phosphate dehydrogenase, spermatogenic

This gene encodes a protein belonging to the glyceraldehyde-3-phosphate dehydrogenase family of enzymes that play an important role in carbohydrate metabolism. Like its somatic cell counterpart, this sperm-specific enzyme functions in a nicotinamide adenine dinucleotide-dependent manner to remove hydrogen and add phosphate to glyceraldehyde 3-phosphate to form 1,3-diphosphoglycerate. During spermiogenesis, this enzyme may play an important role in regulating the switch between different energy-producing pathways, and it is required for sperm motility and male fertility. [provided by RefSeq, Jul 2008]

FPGT Gene

fucose-1-phosphate guanylyltransferase

L-fucose is a key sugar in glycoproteins and other complex carbohydrates since it may be involved in many of the functional roles of these macromolecules, such as in cell-cell recognition. The fucosyl donor for these fucosylated oligosaccharides is GDP-beta-L-fucose. There are two alternate pathways for the biosynthesis of GDP-fucose; the major pathway converts GDP-alpha-D-mannose to GDP-beta-L-fucose. The protein encoded by this gene participates in an alternate pathway that is present in certain mammalian tissues, such as liver and kidney, and appears to function as a salvage pathway to reutilize L-fucose arising from the turnover of glycoproteins and glycolipids. This pathway involves the phosphorylation of L-fucose to form beta-L-fucose-1-phosphate, and then condensation of the beta-L-fucose-1-phosphate with GTP by fucose-1-phosphate guanylyltransferase to form GDP-beta-L-fucose. Alternative splicing results in multiple transcript variants. Read-through transcription also exists between this gene and the neighboring downstream TNNI3 interacting kinase (TNNI3K) gene. [provided by RefSeq, Dec 2010]

S1PR3 Gene

sphingosine-1-phosphate receptor 3

This gene encodes a member of the EDG family of receptors, which are G protein-coupled receptors. This protein has been identified as a functional receptor for sphingosine 1-phosphate and likely contributes to the regulation of angiogenesis and vascular endothelial cell function. [provided by RefSeq, Jul 2008]

S1PR2 Gene

sphingosine-1-phosphate receptor 2

This gene encodes a member of the G protein-coupled receptors, as well as the EDG family of proteins. The encoded protein is a receptor for sphingosine 1-phosphate, which participates in cell proliferation, survival, and transcriptional activation. Defects in this gene have been associated with congenital profound deafness. [provided by RefSeq, Mar 2016]

S1PR1 Gene

sphingosine-1-phosphate receptor 1

The protein encoded by this gene is structurally similar to G protein-coupled receptors and is highly expressed in endothelial cells. It binds the ligand sphingosine-1-phosphate with high affinity and high specificity, and suggested to be involved in the processes that regulate the differentiation of endothelial cells. Activation of this receptor induces cell-cell adhesion. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2016]

S1PR5 Gene

sphingosine-1-phosphate receptor 5

The lysosphingolipid sphingosine 1-phosphate (S1P) regulates cell proliferation, apoptosis, motility, and neurite retraction. Its actions may be both intracellular as a second messenger and extracellular as a receptor ligand. S1P and the structurally related lysolipid mediator lysophosphatidic acid (LPA) signal cells through a set of G protein-coupled receptors known as EDG receptors. Some EDG receptors (e.g., EDG1; MIM 601974) are S1P receptors; others (e.g., EDG2; MIM 602282) are LPA receptors.[supplied by OMIM, Mar 2008]

S1PR4 Gene

sphingosine-1-phosphate receptor 4

This gene is a member of the endothelial differentiation, G-protein-coupled (EDG)) receptor gene family. EDG receptors bind lysophospholipids or lysosphingolipids as ligands, and are involved in cell signalling in many different cell types. This EDG receptor gene is intronless and is specifically expressed in the lymphoid tissue. [provided by RefSeq, Jul 2008]

LOC100421335 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene

GAPDHP15 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene 15

DERA Gene

deoxyribose-phosphate aldolase (putative)

Enables deoxyribose-phosphate aldolase activity. Involved in deoxyribonucleoside catabolic process. Located in nucleoplasm. [provided by Alliance of Genome Resources, Mar 2025]

GNPDA2 Gene

glucosamine-6-phosphate deaminase 2

The protein encoded by this gene is an allosteric enzyme that catalyzes the reversible reaction converting D-glucosamine-6-phosphate into D-fructose-6-phosphate and ammonium. Variations of this gene have been reported to be associated with influencing body mass index and susceptibility to obesity. A pseudogene of this gene is located on chromosome 9. Alternative splicing results in multiple transcript variants that encode different protein isoforms. [provided by RefSeq, Aug 2012]

GNPDA1 Gene

glucosamine-6-phosphate deaminase 1

Glucosamine-6-phosphate deaminase (EC 3.5.99.6) is an allosteric enzyme that catalyzes the reversible conversion of D-glucosamine-6-phosphate into D-fructose-6-phosphate and ammonium (Arreola et al., 2003 [PubMed 12965206]).[supplied by OMIM, Jan 2010]

GAPDHP62 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 62

GAPDHP63 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 63

GAPDHP60 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene 60

GAPDHP61 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 61

GAPDHP66 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene 66

GAPDHP67 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 67

GAPDHP64 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene 64

GAPDHP69 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 69

LOC100133147 Gene

glucosamine-phosphate N-acetyltransferase 1 pseudogene

LOC100421322 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene

LOC643219 Gene

glycerol-3-phosphate acyltransferase 2, mitochondrial pseudogene

GAPDHP27 Gene

glyceraldehyde 3 phosphate dehydrogenase pseudogene 27

LOC100421265 Gene

glyceraldehyde-3-phosphate dehydrogenase pseudogene

LOC100421444 Gene

glucosamine-phosphate N-acetyltransferase 1 pseudogene

PIP5K1C Gene

phosphatidylinositol-4-phosphate 5-kinase, type I, gamma

This locus encodes a type I phosphatidylinositol 4-phosphate 5-kinase. The encoded protein catalyzes phosphorylation of phosphatidylinositol 4-phosphate, producing phosphatidylinositol 4,5-bisphosphate. This enzyme is found at synapses and has been found to play roles in endocytosis and cell migration. Mutations at this locus have been associated with lethal congenital contractural syndrome. Alternatively spliced transcript variants encoding different isoforms have been described.[provided by RefSeq, Sep 2010]

PIP5K1B Gene

phosphatidylinositol-4-phosphate 5-kinase, type I, beta

Predicted to enable 1-phosphatidylinositol-4-phosphate 5-kinase activity. Predicted to be involved in phosphatidylinositol phosphate biosynthetic process. Predicted to act upstream of or within phosphatidylinositol biosynthetic process. Located in uropod. [provided by Alliance of Genome Resources, Mar 2025]

PIP5K1A Gene

phosphatidylinositol-4-phosphate 5-kinase, type I, alpha

Enables 1-phosphatidylinositol-4-phosphate 5-kinase activity and kinase binding activity. Involved in several processes, including activation of GTPase activity; focal adhesion assembly; and ruffle assembly. Located in several cellular components, including lamellipodium; nucleus; and ruffle membrane. [provided by Alliance of Genome Resources, Mar 2025]

CPS1 Gene

carbamoyl-phosphate synthase 1, mitochondrial

The mitochondrial enzyme encoded by this gene catalyzes synthesis of carbamoyl phosphate from ammonia and bicarbonate. This reaction is the first committed step of the urea cycle, which is important in the removal of excess urea from cells. The encoded protein may also represent a core mitochondrial nucleoid protein. Three transcript variants encoding different isoforms have been found for this gene. The shortest isoform may not be localized to the mitochondrion. Mutations in this gene have been associated with carbamoyl phosphate synthetase deficiency, susceptibility to persistent pulmonary hypertension, and susceptibility to venoocclusive disease after bone marrow transplantation.[provided by RefSeq, May 2010]

PLPBP Gene

pyridoxal phosphate binding protein

This gene encodes a pyridoxal 5'-phosphate binding protein involved in the homeostatic regulation of intracellular pyridoxal 5'-phosphate. This gene has a tumor suppressive effect on hepatocellular carcinoma and other solid tumors of epithelial origin. Naturally occurring mutations in this gene are associated with a pyridoxine-dependent epilepsy. [provided by RefSeq, Mar 2017]

GPAT3 Gene

glycerol-3-phosphate acyltransferase 3

This gene encodes a member of the lysophosphatidic acid acyltransferase protein family. The encoded protein is an enzyme which catalyzes the conversion of glycerol-3-phosphate to lysophosphatidic acid in the synthesis of triacylglycerol. Multiple alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Jan 2012]

GPAT4 Gene

glycerol-3-phosphate acyltransferase 4

Lysophosphatidic acid acyltransferases (EC 2.3.1.51) catalyze the conversion of lysophosphatidic acid (LPA) to phosphatidic acid (PA). LPA and PA are involved in signal transduction and lipid biosynthesis.[supplied by OMIM, Apr 2004]

RLIG1 Gene

RNA 5'-phosphate and 3'-OH ligase 1

Enables RNA ligase (ATP) activity. Involved in response to reactive oxygen species. [provided by Alliance of Genome Resources, Mar 2025]