Anti-Rb Polyclonal Antibody is a Rabbit antibody targeting Rb. Anti-Rb Polyclonal Antibody can be used in WB,IHC-P,IHC-Fr,IF.

IgG

Human,Mouse,Rat (predicted:Pig,Cow,Horse,Rabbit)

1. Tissue/cell: rat brain tissue; 4% Paraformaldehyde-fixed and paraffin-embedded;
Antigen retrieval: citrate buffer (0.01M, pH6.0), Boiling bathing for 15 min; Block endogenous peroxidase by 3% Hydrogen peroxide for 30 min; Blocking buffer (normal goat serum) at 37°C for 20 min;
Incubation: Anti-Rb Polyclonal Antibody, Unconjugated (TMAB-01611) 1:200, overnight at 4°C, followed by conjugation to the secondary antibody and DAb staining.
2. Sample:
Lane 1: Mouse Thymus tissue lysates
Lane 2: Human MCF-7 cell lysates
Lane 3: Human Jurkat cell lysates
Primary: Anti-Rb (TMAB-01611) at 1/1000 dilution
Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution
Predicted band size: 102 kDa
Observed band size: 135 kDa

WB: 1:500-2000; IHC-P: 1:100-500; IHC-Fr: 1:100-500; IF: 1:100-500

Polyclonal

KLH conjugated synthetic peptide: human P105 RB

Human

RB1

Retinoblastoma-associated protein

Rb family,Rb,Tumor Suppressors

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 RB1's activity.