CDKN3

CDKN3
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 1FPZ, 1FQ1
Identifiers
Aliases	CDKN3, CDI1, CIP2, KAP, KAP1, cyclin-dependent kinase inhibitor 3, cyclin dependent kinase inhibitor 3, CDLN3
External IDs	OMIM: 123832 MGI: 1919641 HomoloGene: 3805 GeneCards: CDKN3
Gene location (Human) Chr. Chromosome 14 (human) Band 14q22.2 Start 54,396,849 bp End 54,420,218 bp
Gene location (Mouse) Chr. Chromosome 14 (mouse) Band 14|14 C1 Start 46,997,998 bp End 47,009,126 bp
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in sperm ganglionic eminence bone marrow trabecular bone rectum stromal cell of endometrium bone marrow cells appendix lymph node oral cavity Top expressed in seminiferous tubule spermatid spermatocyte yolk sac medial ganglionic eminence hand thymus endocardial cushion bone marrow neural tube More reference expression data BioGPS More reference expression data
Gene ontology Molecular function phosphatase activity protein serine/threonine phosphatase activity phosphoprotein phosphatase activity hydrolase activity protein binding protein tyrosine/serine/threonine phosphatase activity protein tyrosine phosphatase activity Cellular component nucleus perinuclear region of cytoplasm cytoplasm cytosol Biological process cell cycle regulation of cyclin-dependent protein serine/threonine kinase activity negative regulation of cell population proliferation dephosphorylation peptidyl-tyrosine dephosphorylation protein dephosphorylation G1/S transition of mitotic cell cycle Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 1033 72391 Ensembl ENSG00000100526 ENSMUSG00000037628 UniProt Q16667 Q810P3 RefSeq (mRNA) NM_001130851 NM_005192 NM_001330173 NM_028222 NM_001360041 RefSeq (protein) NP_001124323 NP_001317102 NP_005183 NP_082498 NP_001346970 Location (UCSC) Chr 14: 54.4 – 54.42 Mb Chr 14: 47 – 47.01 Mb PubMed search
Wikidata
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Cyclin-dependent kinase inhibitor 3 is an enzyme that in humans is encoded by the CDKN3 gene.

The protein encoded by this gene belongs to the dual specificity protein phosphatase family. It was identified as a cyclin-dependent kinase inhibitor, and has been shown to interact with, and dephosphorylate CDK2 kinase, thus prevent the activation of CDK2 kinase. This gene was reported to be deleted, mutated, or overexpressed in several kinds of cancers.

Interactions

CDKN3 has been shown to interact with Cyclin-dependent kinase 2, Cdk1 and MS4A3.

Further reading

• Poon RY, Hunter T (1995). "Dephosphorylation of Cdk2 Thr160 by the cyclin-dependent kinase-interacting phosphatase KAP in the absence of cyclin". Science. 270 (5233): 90–3. Bibcode:1995Sci...270...90P. doi:10.1126/science.270.5233.90. PMID 7569954. S2CID 44864956.
• Hannon GJ, Casso D, Beach D (1994). "KAP: a dual specificity phosphatase that interacts with cyclin-dependent kinases". Proc. Natl. Acad. Sci. U.S.A. 91 (5): 1731–5. Bibcode:1994PNAS...91.1731H. doi:10.1073/pnas.91.5.1731. PMC 43237. PMID 8127873.
• Harper JW, Adami GR, Wei N, et al. (1993). "The p21 Cdk-interacting protein Cip1 is a potent inhibitor of G1 cyclin-dependent kinases". Cell. 75 (4): 805–16. doi:10.1016/0092-8674(93)90499-G. PMID 8242751. S2CID 13614794.
• Sexl V, Diehl JA, Sherr CJ, et al. (1999). "A rate limiting function of cdc25A for S phase entry inversely correlates with tyrosine dephosphorylation of Cdk2". Oncogene. 18 (3): 573–82. doi:10.1038/sj.onc.1202362. PMID 9989807. S2CID 9458208.
• Lee SW, Reimer CL, Fang L, et al. (2000). "Overexpression of kinase-associated phosphatase (KAP) in breast and prostate cancer and inhibition of the transformed phenotype by antisense KAP expression". Mol. Cell. Biol. 20 (5): 1723–32. doi:10.1128/MCB.20.5.1723-1732.2000. PMC 85355. PMID 10669749.
• Yeh CT, Lu SC, Chen TC, et al. (2000). "Aberrant transcripts of the cyclin-dependent kinase-associated protein phosphatase in hepatocellular carcinoma". Cancer Res. 60 (17): 4697–700. PMID 10987270.
• Song H, Hanlon N, Brown NR, et al. (2001). "Phosphoprotein-protein interactions revealed by the crystal structure of kinase-associated phosphatase in complex with phosphoCDK2". Mol. Cell. 7 (3): 615–26. doi:10.1016/S1097-2765(01)00208-8. PMID 11463386.
• Wang H, Iakova P, Wilde M, et al. (2001). "C/EBPalpha arrests cell proliferation through direct inhibition of Cdk2 and Cdk4". Mol. Cell. 8 (4): 817–28. doi:10.1016/S1097-2765(01)00366-5. PMID 11684017.
• Donato JL, Ko J, Kutok JL, et al. (2002). "Human HTm4 is a hematopoietic cell cycle regulator". J. Clin. Invest. 109 (1): 51–8. doi:10.1172/JCI14025. PMC 150822. PMID 11781350.
• Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. Bibcode:2002PNAS...9916899M. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• Yeh CT, Lu SC, Chao CH, Chao ML (2003). "Abolishment of the interaction between cyclin-dependent kinase 2 and Cdk-associated protein phosphatase by a truncated KAP mutant" (PDF). Biochem. Biophys. Res. Commun. 305 (2): 311–4. doi:10.1016/S0006-291X(03)00757-5. PMID 12745075.
• Niculescu MD, Yamamuro Y, Zeisel SH (2004). "Choline availability modulates human neuroblastoma cell proliferation and alters the methylation of the promoter region of the cyclin-dependent kinase inhibitor 3 gene". J. Neurochem. 89 (5): 1252–9. doi:10.1111/j.1471-4159.2004.02414.x. PMC 1592524. PMID 15147518.
• Chinami M, Yano Y, Yang X, et al. (2005). "Binding of HTm4 to cyclin-dependent kinase (Cdk)-associated phosphatase (KAP).Cdk2.cyclin A complex enhances the phosphatase activity of KAP, dissociates cyclin A, and facilitates KAP dephosphorylation of Cdk2". J. Biol. Chem. 280 (17): 17235–42. doi:10.1074/jbc.M413437200. PMID 15671017.
• Hsieh MJ, Yao YL, Lai IL, Yang WM (2006). "Transcriptional repression activity of PAX3 is modulated by competition between corepressor KAP1 and heterochromatin protein 1". Biochem. Biophys. Res. Commun. 349 (2): 573–81. doi:10.1016/j.bbrc.2006.08.064. PMID 16945326.
• Okamoto K, Kitabayashi I, Taya Y (2006). "KAP1 dictates p53 response induced by chemotherapeutic agents via Mdm2 interaction". Biochem. Biophys. Res. Commun. 351 (1): 216–22. doi:10.1016/j.bbrc.2006.10.022. PMID 17056014.

External links

• CDKN3 human gene location in the UCSC Genome Browser.
• CDKN3 human gene details in the UCSC Genome Browser.