anti-Rb1 / Retinoblastoma protein phospho (Ser807) antibody

Arigo Biolaboratories

anti-Rb1 / Retinoblastoma protein phospho (Ser807) antibody

23

Western Blot, ImmunoHistoChemistry, ImmunoHistoChemistry Paraffin

Research Use Only

Polyclonal

1 mg/ml

Unconjugated

RB1

RB transcriptional corepressor 1

exon 17 tumor GOS561 substitution mutation causes premature stop; GOS563 exon 17 substitution mutation causes premature stop; OSRC; p105-Rb; p110-RB1; pp110; PPP1R130; pRb; prepro-retinoblastoma-associated protein; protein phosphatase 1, regulatory subunit 130; RB; retinoblastoma 1; retinoblastoma suspectibility protein; retinoblastoma-associated protein

Rabbit

IgG

Phosphorylated

Key regulator of entry into cell division that acts as a tumor suppressor. 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. 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.

Human

-20°C

12352203