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Store vial at -20° C prior to opening. Aliquot contents and freeze at -20° C or below for extended storage. Avoid cycles of freezing and thawing. Centrifuge product if not completely clear after standing at room temperature. This product is stable for several weeks at 4° C as an undiluted liquid. Dilute only prior to immediate use.
Antiserum will specifically react with a 34 kDa cdk4 (p34) protein from human, rat and mouse tissue. No reaction was observed against other related cyclin dependent kinases. Cross reactivity with cdk4 (p34) from other species has not been determined.
CDK4/cyclin D3 serine/threonine kinase is dimeric protein complex. CDK4 is a member of the cyclin-dependent protein kinase family and is involved in the control of cell proliferation during the G1 phase of cell cycle. CDK4 forms a complex with the D-type cyclins and is inhibited by p16 (cyclin-dependent kinase inhibitor-2). CDK4 can mediate phosphorylation of the C-terminal region of Rb protein leading to an active transcriptional repression of E2F complex. CDC37 and HSP90 can preferentially associate with the fraction of CDK4 not bound to D-type cyclins. SMAD3 is a major physiologic substrate of the G1 cyclin-dependent kinases CDK4 and CDK2. Although CDK6 and CDK4 can both phosphorylate multiple residues in the Rb protein, they do so with different residue selectivity in vitro; CDK6 phosphorylates Thr821 while CDK4 phosphorylates Thr826 on Rb protein.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases:
Cell division protein kinase 4; CRK3; cyclin dependent kinase 4; Cyclin-dependent kinase 4; MGC14458; p34
Gene Aliases: CDK4; CMM3; Crk3; PSK-J3
UniProt ID: (Human) P11802, (Rat) P35426, (Mouse) P30285
Entrez Gene ID: (Human) 1019, (Rat) 94201, (Mouse) 12567
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