| 货号 | 61585 |
| 别名 | Retinoblastoma 1, RB, pRb, OSRC, pp110, p105-Rb, PPP1R130 |
| 同种亚型 | IgG |
| 反应种属 | Human |
| 来源宿主 | Rabbit |
| 应用 | Western Blot/Immunoprecipitation |
| 使用方法 | Validated Applications: IP: 10 µl per IP WB: 1:500 - 1:2,500 dilution |
| 供应商 | Active Motif |
| 纯化方式 | Affinity Purified |
| 免疫原 | This antibody was raised against a peptide within the C-terminal region of human RB1. |
| 背景 | RB1 (Retinoblastoma 1) is a key regulator of entry into cell division that acts as a tumor suppressor. Promotes G0-G1 transition when phosphorylated by CDK3/cyclin-C. Acts as a transcription repressor of E2F1 target genes. The underphosphorylated, active form of RB1 interacts with E2F1 and represses its transcription activity, leading to cell cycle arrest. Directly involved in heterochromatin formation by maintaining overall chromatin structure and, in particular, that of constitutive heterochromatin by stabilizing histone methylation. Recruits and targets histone methyltransferases SUV39H1, SUV420H1 and SUV420H2, leading to epigenetic transcriptional repression. Controls histone H4 Lys-20 trimethylation. Inhibits the intrinsic kinase activity of TAF1. Mediates transcriptional repression by SMARCA4/BRG1 by recruiting a histone deacetylase (HDAC) complex to the c-FOS promoter. In resting neurons, transcription of the c-FOS promoter is inhibited by BRG1-dependent recruitment of a phospho-RB1-HDAC1 repressor complex. Upon calcium influx, RB1 is dephosphorylated by calcineurin, which leads to release of the repressor complex (By similarity). In case of viral infections, interactions with SV40 large T antigen, HPV E7 protein or adenovirus E1A protein induce the disassembly of RB1-E2F1 complex thereby disrupting RB1s activity. |
| 运输条件 | Blue Ice |
| 存放说明 | Antibodies in solution can be stored at -20°C for 2 years. Avoid repeated freeze/thaw cycles and keep on ice when not in storage. |
| 存储溶液 | Purified IgG in PBS with 30% glycerol and 0.035% sodium azide. Sodium azide is highly toxic. |
| 计算分子量 | 120 kDa |
| 参考文献 |
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RB1 antibody (pAb) tested by Immunoprecipitation. 10 µl of RB1 antibody was used to immunoprecipitate RB1 from 250 µg of Jurkat nuclear cell extract (lane 2). 10 µl of rabbit IgG was used as a negative control (lane 1). The immunoprecipitated protein was detected by Western blotting using the RB1 antibody at a dilution of 1:500. | |
RB1 antibody (pAb) tested by Western blot. Nuclear extract (30 µg) of Jurkat cells probed with RB1 antibody at a 1:500 dilution. |
