| 产品名称 | Anti-P21 antibody |
| 产品货号 | BO1170 |
| 交叉反应 | human, mouse, rat |
| 应用范围 | WB, IHC |
| 推荐稀释比 | WB 1:1000-2000, IHC 1:50-200 |
| 蛋白分子量 | 21KDa |
| 抗体来源 | Rabbit |
| 产品类型 | Polyclonal Antibody |
| 性状 | Liquid |
| 储存 | -20℃ |
| 背景资料 | 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. |
