Harmonizome 3.0

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]

post-GPI attachment to proteins 2 pseudogene

predicted GPI-anchored protein 58

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]

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]

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]

predicted GPI-anchored protein 58

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

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]

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]

From InterPro Predicted Protein Domain Annotations

proteins predicted to have the GPI-anchor transamidase protein domain from the InterPro Predicted Protein Domain Annotations dataset.

From InterPro Predicted Protein Domain Annotations

proteins predicted to have the GPI transamidase subunit PIG-U protein domain from the InterPro Predicted Protein Domain Annotations dataset.

From InterPro Predicted Protein Domain Annotations

proteins predicted to have the GPI transamidase component Gaa1 protein domain from the InterPro Predicted Protein Domain Annotations dataset.

From InterPro Predicted Protein Domain Annotations

proteins predicted to have the GPI transamidase component PIG-T protein domain from the InterPro Predicted Protein Domain Annotations dataset.

From GeneRIF Biological Term Annotations

genes co-occuring with the biological term transamidase in literature-supported statements describing functions of genes from the GeneRIF Biological Term Annotations dataset.

From Allen Brain Atlas Prenatal Human Brain Tissue Gene Expression Profiles

genes with high or low expression in central portion of GPi relative to other tissues from the Allen Brain Atlas Prenatal Human Brain Tissue Gene Expression Profiles dataset.

From Allen Brain Atlas Prenatal Human Brain Tissue Gene Expression Profiles

genes with high or low expression in peripheral portion of GPi relative to other tissues from the Allen Brain Atlas Prenatal Human Brain Tissue Gene Expression Profiles dataset.

From COMPARTMENTS Curated Protein Localization Evidence Scores

proteins localized to the glycosylphosphatidylinositol-n-acetylglucosaminyltransferase (gpi-gnt) complex cellular component from the COMPARTMENTS Curated Protein Localization Evidence Scores dataset.

From COMPARTMENTS Text-mining Protein Localization Evidence Scores

proteins co-occuring with the glycosylphosphatidylinositol-n-acetylglucosaminyltransferase (gpi-gnt) complex cellular component in abstracts of biomedical publications from the COMPARTMENTS Text-mining Protein Localization Evidence Scores dataset.

From CORUM Protein Complexes

proteins in the GPI-GnT activity complex protein complex from the CORUM Protein Complexes dataset.

From DrugBank Drug Targets

interacting proteins for the GPI-1485 drug from the curated DrugBank Drug Targets dataset.

From DrugBank Drug Targets

interacting proteins for the Gpi-1046 drug from the curated DrugBank Drug Targets dataset.

From GeneRIF Biological Term Annotations

genes co-occuring with the biological term gpi in literature-supported statements describing functions of genes from the GeneRIF Biological Term Annotations dataset.

From GEO Signatures of Differentially Expressed Genes for Gene Perturbations

genes differentially expressed following the GPI-PLD_OE_GDS2049_176_human_Hepatoma HepG2 cells gene perturbation from the GEO Signatures of Differentially Expressed Genes for Gene Perturbations dataset.

From GO Cellular Component Annotations 2015

proteins localized to the glycosylphosphatidylinositol-n-acetylglucosaminyltransferase (gpi-gnt) complex cellular component from the curated GO Cellular Component Annotations 2015 dataset.

From GO Molecular Function Annotations 2015

genes performing the gpi-linked ephrin receptor activity molecular function from the curated GO Molecular Function Annotations 2015 dataset.

From GWAS Catalog SNP-Phenotype Associations

genes associated with the β2-Glycoprotein I (β2-GPI) plasma levels phenotype in GWAS datasets from the GWAS Catalog SNP-Phenotype Associations dataset.

From InterPro Predicted Protein Domain Annotations

proteins predicted to have the GPI biosynthesis protein Pig-F protein domain from the InterPro Predicted Protein Domain Annotations dataset.

From InterPro Predicted Protein Domain Annotations

proteins predicted to have the GPI ethanolamine phosphate transferase 1 protein domain from the InterPro Predicted Protein Domain Annotations dataset.

From InterPro Predicted Protein Domain Annotations

proteins predicted to have the GPI inositol-deacylase PGAP1-like protein domain from the InterPro Predicted Protein Domain Annotations dataset.

From InterPro Predicted Protein Domain Annotations

proteins predicted to have the GPI mannosyltransferase protein domain from the InterPro Predicted Protein Domain Annotations dataset.

From InterPro Predicted Protein Domain Annotations

proteins predicted to have the GPI ethanolamine phosphate transferase 1, C-terminal protein domain from the InterPro Predicted Protein Domain Annotations dataset.

From InterPro Predicted Protein Domain Annotations

proteins predicted to have the GPI mannosyltransferase 2 protein domain from the InterPro Predicted Protein Domain Annotations dataset.

From InterPro Predicted Protein Domain Annotations

proteins predicted to have the GPI-GlcNAc transferase complex, PIG-H component, conserved domain protein domain from the InterPro Predicted Protein Domain Annotations dataset.

From Pathway Commons Protein-Protein Interactions

interacting proteins for GPI from the Pathway Commons Protein-Protein Interactions dataset.

From Reactome Pathways 2014

proteins participating in the Post-translational modification: synthesis of GPI-anchored proteins pathway from the Reactome Pathways dataset.

From Reactome Pathways 2014

proteins participating in the Synthesis of glycosylphosphatidylinositol (GPI) pathway from the Reactome Pathways dataset.

From GO Molecular Function Annotations 2023

genes performing the GPI-linked ephrin receptor activity molecular function from the curated GO Molecular Function Annotations 2023 dataset.

From GO Molecular Function Annotations 2023

genes performing the GPI-mannose ethanolamine phosphate phosphodiesterase activity molecular function from the curated GO Molecular Function Annotations 2023 dataset.

From LINCS L1000 CMAP CRISPR Knockout Consensus Signatures

genes differentially expressed following the GPI gene perturbation from the LINCS L1000 CMAP CRISPR Knockout Consensus Signatures dataset.

From Reactome Pathways 2024

proteins participating in the Post-translational modification: synthesis of GPI-anchored proteins pathway from the Reactome Pathways 2024 dataset.

From Reactome Pathways 2024

proteins participating in the Synthesis of glycosylphosphatidylinositol (GPI) pathway from the Reactome Pathways 2024 dataset.

From GO Biological Process Annotations 2025

genes participating in the GPI anchored protein biosynthesis biological process from the curated GO Biological Process Annotations 2025 dataset.

From GO Molecular Function Annotations 2025

genes performing the GPI-linked ephrin receptor activity molecular function from the curated GO Molecular Function Annotations 2025 dataset.

From GO Molecular Function Annotations 2025

genes performing the GPI-mannose ethanolamine phosphate phosphodiesterase activity molecular function from the curated GO Molecular Function Annotations 2025 dataset.

From COMPARTMENTS Curated Protein Localization Evidence Scores 2025

proteins localized to the glycosylphosphatidylinositol-N-acetylglucosaminyltransferase (GPI-GnT) complex cellular component from the COMPARTMENTS Curated Protein Localization Evidence Scores 2025 dataset.

From COMPARTMENTS Text-mining Protein Localization Evidence Scores 2025

proteins co-occuring with the glycosylphosphatidylinositol-N-acetylglucosaminyltransferase (GPI-GnT) complex cellular component in abstracts of biomedical publications from the COMPARTMENTS Text-mining Protein Localization Evidence Scores 2025 dataset.

From COMPARTMENTS Text-mining Protein Localization Evidence Scores 2025

proteins co-occuring with the IgD immunoglobulin complex, GPI-anchored cellular component in abstracts of biomedical publications from the COMPARTMENTS Text-mining Protein Localization Evidence Scores 2025 dataset.

From GWAS Catalog SNP-Phenotype Associations 2025

genes associated with the β2-Glycoprotein I (β2-GPI) plasma levels phenotype in GWAS datasets from the GWAS Catalog SNP-Phenotype Associations 2025 dataset.

From DGIdb Drug Targets 2026

interacting proteins for the GPI-1485 drug from theDGIdb Drug Targets 2026 dataset.

From DGIdb Drug Targets 2026

interacting proteins for the GPI-1046 drug from theDGIdb Drug Targets 2026 dataset.

From DGIdb Drug Targets 2026

interacting proteins for the GPI-0100 drug from theDGIdb Drug Targets 2026 dataset.

From CM4AI KOLF21J CRISPRi Gene Perturbation Atlas

genes differentially expressed following the GPI gene perturbation from the CM4AI KOLF21J CRISPRi Gene Perturbation Atlas.