P105 RB Polyclonal Antibody

Applications

  • WB
  • IHC-P
  • IF(IHC-P)

Reactivity

  • Human
  • Mouse
  • Rat
Overview
Catalog # bs-2777R
Product Name P105 RB Polyclonal Antibody
Applications WB, IHC-P, IF(IHC-P)
Reactivity Human, Mouse, Rat
Specifications
Conjugation Unconjugated
Host Rabbit
Source KLH conjugated synthetic peptide derived from human Rb/P105 RB
Immunogen Range 68-116/928
Clonality Polyclonal
Isotype IgG
Concentration 1ug/ul
Purification Purified by Protein A.
Storage Aqueous buffered solution containing 1% BSA, 50% glycerol and 0.09% sodium azide. Store at -20°C for 12 months.
Target
Gene ID 5925
Swiss Prot P06400
Subcellular location Nucleus
Synonyms RB; pRb; OSRC; pp11; p15-Rb; PPP1R13; Retinoblastoma-associated protein; RB1
Background Key regulator of entry into cell division that acts as a tumor suppressor. Promotes G-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, SUV42H1 and SUV42H2, leading to epigenetic transcriptional repression. Controls histone H4 'Lys-2' 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 SV4 large T antigen, HPV E7 protein or adenovirus E1A protein induce the disassembly of RB1-E2F1 complex thereby disrupting RB1's activity.
Application Dilution
WB 1:300-1000
IHC-P 1:200-400
IF(IHC-P) 1:50-200