Cyclin-dependent kinase inhibitor 3 is an enzyme that in humans is encoded by the CDKN3gene.
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.
^Demetrick DJ, Matsumoto S, Hannon GJ, Okamoto K, Xiong Y, Zhang H, Beach DH (May 1995). "Chromosomal mapping of the genes for the human cell cycle proteins cyclin C (CCNC), cyclin E (CCNE), p21 (CDKN1) and KAP (CDKN3)". Cytogenet Cell Genet. 69 (3–4): 190–2. doi:10.1159/000133960. PMID7698009.
^Yeh, Chau-Ting; Lu Su-Chuan; Chao Chung-Hao; Chao Mei-Ling (May 2003). "Abolishment of the interaction between cyclin-dependent kinase 2 and Cdk-associated protein phosphatase by a truncated KAP mutant". Biochem. Biophys. Res. Commun. United States. 305 (2): 311–4. doi:10.1016/S0006-291X(03)00757-5. ISSN0006-291X. PMID12745075.
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. doi:10.1126/science.270.5233.90. PMID7569954.
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. PMID9989807.
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. PMID10987270.
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. PMID11463386.
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". Biochem. Biophys. Res. Commun. 305 (2): 311–4. doi:10.1016/S0006-291X(03)00757-5. PMID12745075.
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. PMID15671017.
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. PMID16945326.
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. PMID17056014.