Name

GREB1L Gene

growth regulation by estrogen in breast cancer-like

Acts upstream of or within kidney development. Predicted to be located in membrane. Implicated in autosomal dominant nonsyndromic deafness 80 and renal agenesis. [provided by Alliance of Genome Resources, Mar 2025]

RPRD1A Gene

regulation of nuclear pre-mRNA domain containing 1A

This gene encodes a cell-cycle and transcription regulatory protein. The encoded protein interacts with the cell cycle inhibitor cyclin-dependent kinase 4 inhibitor B and may function as a negative regulator of G(1)/S phase progression. This protein also forms homo- and hetrodimers with the protein, regulation of nuclear pre-mRNA domain-containing protein 1B, to form a scaffold that interacts with the C-terminal domain of RNA polymerase II subunit B1 and regulates several aspects of transcription. Alternate splicing results in multiple transcript variants. A pseudogene of this gene is found on chromosome 16. [provided by RefSeq, Dec 2014]

RPRD1B Gene

regulation of nuclear pre-mRNA domain containing 1B

Enables RNA polymerase II complex binding activity and identical protein binding activity. Involved in several processes, including RNA polymerase II promoter clearance; positive regulation of cell population proliferation; and positive regulation of transcription by RNA polymerase II. Located in nucleoplasm. Part of transcription preinitiation complex. [provided by Alliance of Genome Resources, Mar 2025]

RPRD2 Gene

regulation of nuclear pre-mRNA domain containing 2

Predicted to enable RNA polymerase II complex binding activity. Predicted to be involved in mRNA 3'-end processing. Part of transcription preinitiation complex. [provided by Alliance of Genome Resources, Mar 2025]

GREB1 Gene

growth regulation by estrogen in breast cancer 1

This gene is an estrogen-responsive gene that is an early response gene in the estrogen receptor-regulated pathway. It is thought to play an important role in hormone-responsive tissues and cancer. Three alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

LOC100130602 Gene

regulation of nuclear pre-mRNA domain containing 1A pseudogene

PELATON Gene

plaque enriched lncRNA in atherosclerotic and inflammatory bowel macrophage regulation

PRAL Gene

p53 regulation associated lncRNA

ID2B Gene

inhibitor of DNA binding 2B, dominant negative helix-loop-helix protein (pseudogene)

NELFB Gene

negative elongation factor complex member B

NELFB is a subunit of negative elongation factor (NELF), which also includes NELFA (WHSC2; MIM 606026), either NELFC or NELFD (TH1L; MIM 605297), and NELFE (RDBP; MIM 154040). NELF acts with DRB sensitivity-inducing factor (DSIF), a heterodimer of SPT4 (SUPT4H1; MIM 603555) and SPT5 (SUPT5H; MIM 602102), to cause transcriptional pausing of RNA polymerase II (see MIM 180660) (Narita et al., 2003 [PubMed 12612062]).[supplied by OMIM, Mar 2008]

NELFA Gene

negative elongation factor complex member A

This gene is expressed ubiquitously with higher levels in fetal than in adult tissues. It encodes a protein sharing 93% sequence identity with the mouse protein. Wolf-Hirschhorn syndrome (WHS) is a malformation syndrome associated with a hemizygous deletion of the distal short arm of chromosome 4. This gene is mapped to the 165 kb WHS critical region, and may play a role in the phenotype of the WHS or Pitt-Rogers-Danks syndrome. The encoded protein is found to be capable of reacting with HLA-A2-restricted and tumor-specific cytotoxic T lymphocytes, suggesting a target for use in specific immunotherapy for a large number of cancer patients. This protein has also been shown to be a member of the NELF (negative elongation factor) protein complex that participates in the regulation of RNA polymerase II transcription elongation. [provided by RefSeq, Jul 2008]

NELFE Gene

negative elongation factor complex member E

The protein encoded by this gene is part of a complex termed negative elongation factor (NELF) which represses RNA polymerase II transcript elongation. This protein bears similarity to nuclear RNA-binding proteins; however, it has not been demonstrated that this protein binds RNA. The protein contains a tract of alternating basic and acidic residues, largely arginine (R) and aspartic acid (D). The gene localizes to the major histocompatibility complex (MHC) class III region on chromosome 6. [provided by RefSeq, Jul 2008]

DR1 Gene

down-regulator of transcription 1, TBP-binding (negative cofactor 2)

This gene encodes a TBP- (TATA box-binding protein) associated phosphoprotein that represses both basal and activated levels of transcription. The encoded protein is phosphorylated in vivo and this phosphorylation affects its interaction with TBP. This protein contains a histone fold motif at the amino terminus, a TBP-binding domain, and a glutamine- and alanine-rich region. The binding of DR1 repressor complexes to TBP-promoter complexes may establish a mechanism in which an altered DNA conformation, together with the formation of higher order complexes, inhibits the assembly of the preinitiation complex and controls the rate of RNA polymerase II transcription. [provided by RefSeq, Jul 2008]

NRROS Gene

negative regulator of reactive oxygen species

Enables transforming growth factor beta binding activity. Predicted to be involved in several processes, including microglia development; sequestering of TGFbeta in extracellular matrix; and transforming growth factor beta receptor signaling pathway. Located in cell surface. [provided by Alliance of Genome Resources, Mar 2025]

NRIR Gene

negative regulator of interferon response (non-protein coding)

This gene is thought to produce a functional long non-coding RNA. This transcript may be a negative regulator of interferon response. [provided by RefSeq, Feb 2015]

DRAP1 Gene

DR1-associated protein 1 (negative cofactor 2 alpha)

Transcriptional repression is a general mechanism for regulating transcriptional initiation in organisms ranging from yeast to humans. Accurate initiation of transcription from eukaryotic protein-encoding genes requires the assembly of a large multiprotein complex consisting of RNA polymerase II and general transcription factors such as TFIIA, TFIIB, and TFIID. DR1 is a repressor that interacts with the TATA-binding protein (TBP) of TFIID and prevents the formation of an active transcription complex by precluding the entry of TFIIA and/or TFIIB into the preinitiation complex. The protein encoded by this gene is a corepressor of transcription that interacts with DR1 to enhance DR1-mediated repression. The interaction between this corepressor and DR1 is required for corepressor function and appears to stabilize the TBP-DR1-DNA complex. [provided by RefSeq, Jul 2008]

NRAV Gene

negative regulator of antiviral response (non-protein coding)

NELFCD Gene

negative elongation factor complex member C/D

The NELF complex of proteins interacts with the DSIF protein complex to repress transcriptional elongation by RNA polymerase II. The protein encoded by this gene is an essential part of the NELF complex. Alternative translation initiation site usage results in the formation of two isoforms with different N-termini. [provided by RefSeq, Jul 2008]

NUB1 Gene

negative regulator of ubiquitin-like proteins 1

This gene encodes a protein that functions as a negative regulator of NEDD8, a ubiquitin-like protein that conjugates with cullin family members in order to regulate vital biological events. The protein encoded by this gene regulates the NEDD8 conjugation system post-transcriptionally by recruiting NEDD8 and its conjugates to the proteasome for degradation. This protein interacts with the product of the AIPL1 gene, which is associated with Leber congenital amaurosis, an inherited retinopathy, and mutations in that gene can abolish interaction with this protein, which may contribute to the pathogenesis. This protein is also known to accumulate in Lewy bodies in Parkinson's disease and dementia with Lewy bodies, and in glial cytoplasmic inclusions in multiple system atrophy, with this abnormal accumulation being specific to alpha-synucleinopathy lesions. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Aug 2011]

ID4 Gene

inhibitor of DNA binding 4, dominant negative helix-loop-helix protein

This gene encodes a member of the inhibitor of DNA binding (ID) protein family. The encoded protein lacks DNA binding ability, and instead regulates gene expression through binding to and inhibiting basic helix-loop-helix transcription factors. This protein has been implicated in the regulation of diverse cellular processes that play a role in development and tumorigenesis. [provided by RefSeq, Aug 2017]

ID2 Gene

inhibitor of DNA binding 2, dominant negative helix-loop-helix protein

The protein encoded by this gene belongs to the inhibitor of DNA binding family, members of which are transcriptional regulators that contain a helix-loop-helix (HLH) domain but not a basic domain. Members of the inhibitor of DNA binding family inhibit the functions of basic helix-loop-helix transcription factors in a dominant-negative manner by suppressing their heterodimerization partners through the HLH domains. This protein may play a role in negatively regulating cell differentiation. A pseudogene of this gene is located on chromosome 3. [provided by RefSeq, Aug 2011]

ID3 Gene

inhibitor of DNA binding 3, dominant negative helix-loop-helix protein

The protein encoded by this gene is a helix-loop-helix (HLH) protein that can form heterodimers with other HLH proteins. However, the encoded protein lacks a basic DNA-binding domain and therefore inhibits the DNA binding of any HLH protein with which it interacts. [provided by RefSeq, Aug 2011]

ID1 Gene

inhibitor of DNA binding 1, dominant negative helix-loop-helix protein

The protein encoded by this gene is a helix-loop-helix (HLH) protein that can form heterodimers with members of the basic HLH family of transcription factors. The encoded protein has no DNA binding activity and therefore can inhibit the DNA binding and transcriptional activation ability of basic HLH proteins with which it interacts. This protein may play a role in cell growth, senescence, and differentiation. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

NBDY Gene

negative regulator of P-body association

Involved in negative regulation of cytoplasmic mRNA processing body assembly and nuclear-transcribed mRNA catabolic process. Located in P-body. [provided by Alliance of Genome Resources, Mar 2025]

MCUB Gene

mitochondrial calcium uniporter dominant negative subunit beta

Enables calcium channel inhibitor activity. Involved in negative regulation of calcium import into the mitochondrion. Located in mitochondrial inner membrane and nucleoplasm. Part of uniplex complex. [provided by Alliance of Genome Resources, Mar 2025]

KCNJ17 Gene

inward rectifying K+ channel negative regulator Kir2.2v

SKA1 Gene

spindle and kinetochore associated complex subunit 1

Enables microtubule binding activity. Involved in attachment of mitotic spindle microtubules to kinetochore; negative regulation of mitotic spindle assembly checkpoint signaling; and positive regulation of microtubule polymerization. Located in intercellular bridge; kinetochore; and microtubule cytoskeleton. Part of SKA complex. [provided by Alliance of Genome Resources, Mar 2025]

SKA3 Gene

spindle and kinetochore associated complex subunit 3

This gene encodes a component of the spindle and kinetochore-associated protein complex that regulates microtubule attachment to the kinetochores during mitosis. The encoded protein localizes to the outer kinetechore and may be required for normal chromosome segregation and cell division. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2009]

SKA2 Gene

spindle and kinetochore associated complex subunit 2

Enables microtubule binding activity. Involved in attachment of mitotic spindle microtubules to kinetochore and regulation of microtubule polymerization or depolymerization. Located in spindle microtubule. Part of SKA complex. [provided by Alliance of Genome Resources, Mar 2025]

SPDL1 Gene

spindle apparatus coiled-coil protein 1

This gene encodes a coiled-coil domain-containing protein that functions in mitotic spindle formation and chromosome segregation. The encoded protein plays a role in coordinating microtubule attachment by promoting recruitment of dynein proteins, and in mitotic checkpoint signaling. [provided by RefSeq, Jul 2016]

SKA2P1 Gene

spindle and kinetochore associated complex subunit 2 pseudogene 1

MZT2A Gene

mitotic spindle organizing protein 2A

Located in centrosome; cytosol; and nucleoplasm. [provided by Alliance of Genome Resources, Mar 2025]

MZT2B Gene

mitotic spindle organizing protein 2B

Located in cytosol; microtubule cytoskeleton; and nucleoplasm. Part of gamma-tubulin ring complex. [provided by Alliance of Genome Resources, Mar 2025]

CCSAP Gene

centriole, cilia and spindle-associated protein

Enables microtubule binding activity. Involved in mitotic spindle microtubule depolymerization and regulation of mitotic spindle assembly. Located in axon; ciliary transition zone; and cytoskeleton. [provided by Alliance of Genome Resources, Mar 2025]

SFI1 Gene

Sfi1 homolog, spindle assembly associated (yeast)

Enables phosphatase binding activity. Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Mar 2025]

CSPP1 Gene

centrosome and spindle pole associated protein 1

This gene encodes a centrosome and spindle pole associated protein. The encoded protein plays a role in cell-cycle progression and spindle organization, regulates cytokinesis, interacts with Nephrocystin 8 and is required for cilia formation. Mutations in this gene result in primary cilia abnormalities and classical Joubert syndrome. Alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Apr 2014]

SASS6 Gene

spindle assembly 6 homolog (C. elegans)

The protein encoded by this gene is a central component of centrioles and is necessary for their duplication and function. Centrioles adopt a cartwheel-shaped structure, with the encoded protein forming the hub and spokes inside a microtubule cylinder. Defects in this gene are a cause of autosomal recessive primary microcephaly. [provided by RefSeq, Oct 2016]

MISP Gene

mitotic spindle positioning

The protein encoded by this gene is an actin-bundling protein involved in determining cell morphology and mitotic progression. The encoded protein is required for the proper positioning of the mitotic spindle. Two transcript variants, one protein-coding and the other non-protein coding, have been found for this gene. [provided by RefSeq, Feb 2016]

SPICE1 Gene

spindle and centriole associated protein 1

Involved in metaphase chromosome alignment; mitotic spindle assembly; and regulation of centriole replication. Located in centriole; centrosome; and spindle. [provided by Alliance of Genome Resources, Mar 2025]

MZT1P2 Gene

mitotic spindle organizing protein 1 pseudogene 2

ASPM Gene

asp (abnormal spindle) homolog, microcephaly associated (Drosophila)

This gene is the human ortholog of the Drosophila melanogaster 'abnormal spindle' gene (asp), which is essential for normal mitotic spindle function in embryonic neuroblasts. Studies in mouse also suggest a role of this gene in mitotic spindle regulation, with a preferential role in regulating neurogenesis. Mutations in this gene are associated with microcephaly primary type 5. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, May 2011]

MZT1 Gene

mitotic spindle organizing protein 1

Involved in gamma-tubulin complex localization. Located in centrosome and spindle. Part of gamma-tubulin ring complex. [provided by Alliance of Genome Resources, Mar 2025]

LOC100128497 Gene

mitotic spindle assembly checkpoint protein MAD2A-like

NUSAP1 Gene

nucleolar and spindle associated protein 1

NUSAP1 is a nucleolar-spindle-associated protein that plays a role in spindle microtubule organization (Raemaekers et al., 2003 [PubMed 12963707]).[supplied by OMIM, Jun 2009]

ESPL1 Gene

extra spindle pole bodies homolog 1 (S. cerevisiae)

Stable cohesion between sister chromatids before anaphase and their timely separation during anaphase are critical for chromosome inheritance. In vertebrates, sister chromatid cohesion is released in 2 steps via distinct mechanisms. The first step involves phosphorylation of STAG1 (MIM 604358) or STAG2 (MIM 300826) in the cohesin complex. The second step involves cleavage of the cohesin subunit SCC1 (RAD21; MIM 606462) by ESPL1, or separase, which initiates the final separation of sister chromatids (Sun et al., 2009 [PubMed 19345191]).[supplied by OMIM, Nov 2010]