FIGURE: 1 / 1
CDK8 phosphorylates the carboxy-terminal domain of the largest subunit of RNA polymerase II. This protein is coexpressed and copurified with Cyclin C. CDK8 is part of 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. 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: Cell division protein kinase 8; Cyclin-dependent kinase 8; Mediator complex subunit CDK8; Mediator of RNA polymerase II transcription subunit CDK8; MGC126074; MGC126075
Gene Aliases: Cdk8; RGD1560888
UniProt ID: (Mouse) Q8R3L8
Molecular Function: non-receptor serine/threonine protein kinase