CAT. NO.: AMA-0165
Product Details | |
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Size | 100 μL |
Reactivity | Human, Mouse |
Host | Rabbit |
Source/Isotype | Rabbit IgG |
Storage | Store at -20°C. |
Purification | Monoclonal antibody is produced by immunizing animals with recombinant protein specific to human p21 Waf1/Cip1 protein. |
Usage | |
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Application | WB, IP |
Product Usage Information Dilution | Western Blotting (1:1000); Immunoprecipitation (1:50) |
MW (Target) | 21 kDa |
Background | |
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The tumor suppressor protein p21 Waf1/Cip1 acts as an inhibitor of cell cycle progression. It functions in stoichiometric relationships forming heterotrimeric complexes with cyclins and cyclin-dependent kinases. In association with CDK2 complexes, it serves to inhibit kinase activity and block progression through G1/S. However, p21 may also enhance assembly and activity in complexes of CDK4 or CDK6 and cyclin D. The carboxy-terminal region of p21 is sufficient to bind and inhibit PCNA, a subunit of DNA polymerase, and may coordinate DNA replication with cell cycle progression. Upon UV damage or during cell cycle stages when cdc2/cyclin B or CDK2/cyclin A are active, p53 is phosphorylated and upregulates p21 transcription via a p53-responsive element. Protein levels of p21 are downregulated through ubiquitination and proteasomal degradation. |
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