p130 Antibody

BT-AP06740

Rabbit

IgG

20ul,50ul,100ul

Polyclonal

The antiserum was produced against synthesized peptide derived from human RBL2. AA range:918-967

The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.

1 mg/ml

Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.

-20°C for one year

The retinoblastoma (Rb) tumor suppressor family includes the retinoblastoma protein Rb (p105), retinoblastoma-like protein 1 (RBL1, p107), and retinoblastoma-like protein 2 (RBL2, p130). These Rb family proteins are referred to as ‘pocket proteins’ because they contain a conserved binding pocket region that interacts with critical regulatory proteins, including E2F family transcription factors, c-Abl tyrosine kinase, and proteins containing a conserved LXCXE motif. In quiescent G0 phase cells, active Rb proteins are hypophosphorylated and bind to E2F transcription factors to repress transcription and inhibit cell cycle progression. Upon growth factor induction of quiescent cells, Rb proteins become hyperphosphorylated and inactivated by G1-phase cyclinD-cdk4/6, G1/S-phase cyclin E-cdk2, and G1/S-phase cyclin A-cdk2 complexes. Hyperphosphorylation of Rb proteins results in a loss of E2F binding and allows for transcriptional activation and cell cycle progression. In addition to regulating the cell cycle, Rb proteins regulate chromosome stability, induction, and maintenance of senescence, apoptosis, cellular differentiation, and angiogenesis. Retinoblastoma-like protein 2 (RBL2, p130) is the most predominant and active Rb family member found in quiescent cells. In these cells, RBL2 interacts with E2F4 and E2F5 to recruit the DP, RB-like, E2F, and MuvB protein (DREAM) complex to E2F target genes to repress transcription of multiple genes required for progression into S phase and mitosis. Hypophosphorylation of RBL2 during cellular senescence is required for maintenance of senescent cells.

Human: Q08999; Mouse: Q64700; Rat: O55081;

128367

Human: 5934; Mouse: 19651; Rat: 81758

RBL2; RB2; Retinoblastoma-like protein 2; 130 kDa retinoblastoma-associated protein; p130; Retinoblastoma-related protein 2; RBR-2; pRb2

Cell Biology

RBL2