CDK2: a protein kinase of the CDK family. An important component of the cell cycle machinery. Activity of CDK2 is maximal during S phase and G2. Cdk2/cyclin E kinase activity is important for the G1 to S transition and phosphorylates the Rb protein. In S-phase, active cdk2/cyclin A complexes predominate and phosphorylate E2F, and the active cdk2 complex persists in the nucleus through G2. Part of the Rb pathway disregulated in most tumors. Target of several candidate cancer drugs. However, inhibition does not always prevent cancer cell growth, possibly due to CDK redundancy. Inhibitors: BMS-265246, BMS-265246-01, R-roscovitine (CYC200, CYC202), SU9516, R547, L868276
Protein type: EC 2.7.11.22; Kinase, protein; Protein kinase, Ser/Thr (non-receptor); Protein kinase, CMGC; Cell cycle regulation; CMGC group; CDK family; CDK/CDK1 subfamily; CDK1 subfamily
Cellular Component: Cajal body; chromosome, telomeric region; intracellular membrane-bound organelle; X chromosome; condensed chromosome; cytosol; Y chromosome; transcription factor complex; cytoskeleton; cytoplasm; cyclin-dependent protein kinase holoenzyme complex; nucleus; endosome
Molecular Function: transferase activity; protein serine/threonine kinase activity; protein binding; cyclin binding; cyclin-dependent protein kinase activity; metal ion binding; transferase activity, transferring phosphorus-containing groups; protein complex binding; nucleotide binding; histone kinase activity; kinase activity; ATP binding; protein kinase activity
Biological Process: mitosis; response to cAMP; regulation of cell cycle; histone phosphorylation; positive regulation of transcription, DNA-dependent; cell cycle; DNA repair; protein amino acid phosphorylation; peptidyl-serine phosphorylation; meiotic cell cycle; cellular response to insulin stimulus; cell division; positive regulation of cell proliferation; response to electrical stimulus; phosphorylation; response to DNA damage stimulus; potassium ion transport; G1/S transition of mitotic cell cycle; positive regulation of DNA replication initiation
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