Anti-Rb1

Make to order. Production time: 70-80 business days. Deliverables: 1. 200 µg antigen (used as positive control), 2. 1 ml pre-immune serum (used as negative control) , 3. Rabbit polyclonal antibody, antigen affinity purified. Quality Guarantee: 1. Antibody purity > 90% confirmed by SDS-PAGE, 2. Antibody titer > 1: 64,000 confirmed by ELISA, 3. WB positive with the immunogen protein (not applicable for synthetic peptide). Applications: ELISA, WB (positive for the recombinant immunogen protein/peptide). Buffer: Preservative: 0.03% Proclin 300, Constituents: 50% Glycerol, 0.01M PBS, pH 7.4. Protein function: 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. [The UniProt Consortium]