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Product Name p107 Chinese Name 视网膜母细胞瘤样蛋白p107抗体 Alias 107 kDa retinoblastoma-associated protein; Cellular protein 107; Cellular protein p107; CP107; MGC40006; p107; PRB1; RBL1; RBL1_HUMAN; Retinoblastoma like protein 1; retinoblastoma-like 1 (p107); Retinoblastoma-like protein 1. Research Area Tumour immunology Chromatin and nuclear signals Signal transduction Stem cells Cyclin transcriptional regulatory factor Immunogen Species Rabbit Clonality Polyclonal React Species (predicted: Human, Mouse, Rat, Chicken, Dog, Cow, Horse, Rabbit, ) Applications WB=1:500-2000 ELISA=1:5000-10000 IHC-P=1:100-500 IHC-F=1:100-500 IF=1:100-500 (Paraffin sections need antigen repair)
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.Theoretical molecular weight 121kDa Cellular localization The nucleus Form Liquid Concentration 1mg/ml immunogen KLH conjugated synthetic peptide derived from human RBL1: 751-850/1068 Lsotype IgG Purification affinity purified by Protein A Buffer Solution 0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol. Storage Shipped at 4℃. Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. Attention This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. PubMed PubMed Product Detail p107 is a tumor suppressor protein that appears to be involved in cell cycle regulation, as it is phosphorylated in the S to M phase transition and is dephosphorylated in the G1 phase of the cell cycle. Both the RB1 protein and the product of this gene can form a complex with adenovirus E1A protein and SV40 large T-antigen, with the SV40 large T-antigen binding only to the unphosphorylated form of each protein. In addition, both proteins can inhibit the transcription of cell cycle genes containing E2F binding sites in their promoters. Due to the sequence and biochemical similarities with the RB1 protein, it is thought that the protein encoded by this gene may also be a tumor suppressor. Two transcript variants encoding different isoforms have been found for this gene.
Function:
Key regulator of entry into cell division. 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 SUV420H1 and SUV420H2, leading to epigenetic transcriptional repression. Controls histone H4 'Lys-20' trimethylation. Probably acts as a transcription repressor by recruiting chromatin-modifying enzymes to promoters. Potent inhibitor of E2F-mediated trans-activation. Forms a complex with adenovirus E1A and with SV40 large T antigen. May bind and modulate functionally certain cellular proteins with which T and E1A compete for pocket binding. May act as a tumor suppressor.
Subunit:
Interacts with SUV420H1, SUV420H2 and USP4 (By similarity). Component of the DREAM complex (also named LINC complex) at least composed of E2F4, E2F5, LIN9, LIN37, LIN52, LIN54, MYBL1, MYBL2, RBL1, RBL2, RBBP4, TFDP1 and TFDP2. The complex exists in quiescent cells where it represses cell cycle-dependent genes. It dissociates in S phase when LIN9, LIN37, LIN52 and LIN54 form a subcomplex that binds to MYBL2. Interacts with AATF. Interacts with KDM5A. Interacts with SV40 and JC virus large T antigens.
Subcellular Location:
Nucleus (Potential).
Post-translational modifications:
Exists in both phosphorylated and unphosphorylated forms, and T, but not E1A, binds only to the unphosphorylated form. Cell-cycle arrest properties are inactivated by phosphorylation on Thr-332, Ser-640, Ser-964 and Ser-975 by CDK4.
Similarity:
Belongs to the retinoblastoma protein (RB) family.
SWISS:
P28749
Gene ID:
5933
Database links:Entrez Gene: 5933 Human
Entrez Gene: 19650 Mouse
Omim: 116957 Human
SwissProt: P28749 Human
SwissProt: Q64701 Mouse
Unigene: 207745 Human
Unigene: 244671 Mouse
Unigene: 148725 Rat
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