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A family of proteins designated as cdks are critical regulators of cell cycle progression. The prototype member of this family, p34/Cdc 2, and a related protein Cdk 2, function late in the cycle while Cdk 4 and Cdk 6 are critically involved in G1 to S progression. The p54/Cdk 8 interacts exclusively with Cyclin C. The Cdk 8 Cyclin C complex activates the kinase. Because of analogy with yeast Cdk 8, it has been proposed that the human Cdk 8 Cyclin C may interact with RNA polymerase, thus influencing the transcription mechanism(s) that lead to cell division.
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Protein Aliases: CDK8 protein kinase; Cell division protein kinase 8; Cyclin-dependent kinase 8; Mediator complex subunit CDK8; Mediator of RNA polymerase II transcription subunit CDK8; MGC126074; MGC126075; Protein kinase K35
Gene Aliases: CDK8; K35
UniProt ID: (Human) P49336, (Mouse) Q8R3L8
Entrez Gene ID: (Human) 1024, (Mouse) 264064
Molecular Function:
kinase
non-receptor serine/threonine protein kinase
non-receptor tyrosine protein kinase
protein kinase
transferase
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