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: Kinase, protein; Protein kinase, Ser/Thr (non-receptor); Cell cycle regulation; Protein kinase, CMGC; EC 2.7.11.22; CMGC group; CDK family; CDK1 subfamily; CDK/CDK1 subfamily
Cellular Component: Y chromosome; Cajal body; chromosome, telomeric region; transcription factor complex; intracellular membrane-bound organelle; X chromosome; cytoplasm; cyclin-dependent protein kinase holoenzyme complex; microtubule organizing center; condensed chromosome; cytosol; nucleus; endosome
Molecular Function: cyclin binding; cyclin-dependent protein kinase activity; metal ion binding; protein complex binding; histone kinase activity; kinase activity; ATP binding; protein kinase activity
Biological Process: response to drug; lens development in camera-type eye; mitosis; organ regeneration; response to cAMP; regulation of cell cycle; response to toxin; positive regulation of transcription, DNA-dependent; histone phosphorylation; DNA repair; protein amino acid phosphorylation; response to estradiol stimulus; peptidyl-serine phosphorylation; response to cadmium ion; response to ethanol; meiotic cell cycle; cellular response to insulin stimulus; cell division; positive regulation of cell proliferation; Ras protein signal transduction; response to electrical stimulus; potassium ion transport; positive regulation of DNA replication initiation; G1/S transition of mitotic cell cycle
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