Recombinant human CDK6 + CCND3 protein (ab84557)

CDK family members are highly similar to the gene products of Saccharomyces cerevisiae cdc28, and Schizosaccharomyces pombe cdc2, and are known to be important regulators of cell cycle progression. This kinase is a catalytic subunit of the protein kinase complex that is important for cell cycle G1 phase progression and G1/S transition. The activity of Cdk6 first appears in mid-G1 phase, and is controlled by regulatory subunits including D-type cyclins and members of INK4 family of CDK inhibitors. This kinase, as well as CDK4, has been shown to phosphorylate, and thus regulate the activity of, tumor suppressor protein Rb. Cyclin D3 is a G1 cyclin closely related to cyclin D1 and D2. Cyclins D1, D2, and D3 are members of a growing superfamily of cyclins, proteins that govern transitions through distinct phases of the cell cycle by regulating the activity of cyclin-dependent kinases (cdks). All three known members of the D-type subfamily form active kinase complexes in vivo with a distinct subset of cdks, particularly with cdk4 and cdk6.

CCND3: Cytoplasm. Nucleus