BackGround:
It is now well established that cyclins play a positive role in promoting cell cycle transitions via their ability to as- sociate with and activate their cognate cyclin-dependent kinases (Cdks). Cdk2 associates with cyclins A, D and E, and has been implicated in the control of the G1 to S phase transition in mammals. A novel Cdk-interacting protein, designated p21, Cip1 or WAF1, has been identified in cyclin A, cyclin D1, cyclin E and Cdk2 immuno- precipitates. p21 is a potent, tight-binding inhibitor of Cdks and can inhibit the phosphorylation of Rb by cyclin A-Cdk 2, cyclin E-Cdk2, cyclin D1-Cdk4 and cyclin D2-Cdk4 complexes. Expression of p21 is inducible by wildtype, but not mutant, p53. The mouse homolog of p21 is designated CAP20.
Product:
Rabbit IgG in PBS with 0.02% sodium azide,50% glycerol, pH7.2
Molecular Weight:
~ 21 kDa
Swiss-Prot:
P38936
Purification & Purity:
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).
Applications:
WB 1:1000 - 1:2500 IHC 1:25 - 1:100
Storage & Stability:
Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles.