NP_000066.1
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NCBI GenBank Nucleotide #
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UniProt Primary Accession #
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UniProt Secondary Accession #
UniProt Related Accession #
Molecular Weight
20,725 Da
NCBI Official Full Name
cyclin-dependent kinase 4
NCBI Official Synonym Full Names
cyclin dependent kinase 4
NCBI Official Synonym Symbols
NCBI Protein Information
cyclin-dependent kinase 4
UniProt Protein Name
Cyclin-dependent kinase 4
UniProt Synonym Protein Names
Cell division protein kinase 4; PSK-J3
NCBI Summary for CDK4
The protein encoded by this gene is a member of the Ser/Thr protein kinase family. This protein is highly similar to the gene products of S. cerevisiae cdc28 and S. pombe cdc2. It is a catalytic subunit of the protein kinase complex that is important for cell cycle G1 phase progression. The activity of this kinase is restricted to the G1-S phase, which is controlled by the regulatory subunits D-type cyclins and CDK inhibitor p16(INK4a). This kinase was shown to be responsible for the phosphorylation of retinoblastoma gene product (Rb). Mutations in this gene as well as in its related proteins including D-type cyclins, p16(INK4a) and Rb were all found to be associated with tumorigenesis of a variety of cancers. Multiple polyadenylation sites of this gene have been reported. [provided by RefSeq, Jul 2008]
UniProt Comments for CDK4
CDK4: a protein kinase of the CDK family that is important for cell cycle G1 phase progression. Its activity is restricted to the G1-S phase. Controlled by the regulatory subunits D-type cyclins and CDK inhibitor p16(INK4a). Phosphorylates the retinoblastoma gene product (Rb). Point mutations found in somatic and familial melanoma. Amplified in sarcomas, glioma and lymphoma. Amplified, methylated or deleted in head and neck squamous cell carcinoma. Overexpression drives epithelial tumors in mice. Disruption makes mice resistant to cancer. Inhibitor: PD332991.
Protein type: CDK family; CDK/CDK4 subfamily; CDK4 subfamily; CMGC group; Cell cycle regulation; EC 2.7.11.22; Kinase, protein; Protein kinase, CMGC; Protein kinase, Ser/Thr (non-receptor)
Chromosomal Location of Human Ortholog: 12q14.1
Cellular Component: chromatin; cyclin-dependent protein kinase holoenzyme complex; cytosol; nuclear membrane; nucleolus; nucleoplasm; nucleus
Molecular Function: cyclin binding; cyclin-dependent protein kinase activity; cyclin-dependent protein kinase regulator activity; protein binding
Biological Process: G1/S transition of mitotic cell cycle; positive regulation of cell cycle; positive regulation of cell proliferation; positive regulation of fibroblast proliferation; protein amino acid phosphorylation; regulation of gene expression; response to drug
Disease: Melanoma, Cutaneous Malignant, Susceptibility To, 3
Research Articles on CDK4
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Products associated with anti-CDK4 antibody
Pathways associated with anti-CDK4 antibody
Diseases associated with anti-CDK4 antibody
Organs/Tissues associated with anti-CDK4 antibody
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