概述（Summary）icon

英文全称

Recombinant Human RB1 protein

纯度（Purity）

>90% as determined by SDS-PAGE

内毒素（Endotoxin level）

Please contact with the lab for this information.

蛋白构建（Construction）

A DNA sequence encoding the human RB1 (Gln639-Thr778) was fused with GST tag

Accession #

P06400

表达宿主（Host）

E.coli

种属（Species）

Homo sapiens (Human)

预测分子量（Predicted Molecular Mass）

41.41 kDa

制剂（Formulation）

Supplied as solution form in PBS pH 7.5./ Lyophilized from PBS pH 7.5.

运输方式（Shipping）

In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise.

稳定性&储存（Stability &Storage）

Use a manual defrost freezer and avoid repeated freeze thaw cycles.
Store at 2 to 8 °C for one week .
Store at -20 to -80 °C for twelve months from the date of receipt.

复溶（Reconstitution）

Reconstitute in sterile water for a stock solution.A copy of datasheet will be provided with the products, please refer to it for details.

背景（Background）icon

背景介绍

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, KMT5B and KMT5C, 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.

分子别名（Alternative Names）

Retinoblastoma-associated protein,p105-Rb,p110-RB1,pRb,Rb,pp110.