Molecular weight (DA)
100kD
Immunogen
Synthesized peptide derived from human CTIP (Phospho Ser327)
Specificity
This antibody detects endogenous levels of Human,Mouse CTIP (Phospho Ser327)
Source
Polyclonal, Rabbit,IgG
Formulation
Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
Dilution rate
WB 1:1000-2000 ELISA 1:5000-20000
Purification process (Immunogen)
The antibody was affinity-purified from rabbit serum by affinity-chromatography using specific immunogen.
Background
The protein encoded by this gene is a ubiquitously expressed nuclear protein. It is found among several proteins that bind directly to retinoblastoma protein, which regulates cell proliferation. This protein complexes with transcriptional co-repressor CTBP. It is also associated with BRCA1 and is thought to modulate the functions of BRCA1 in transcriptional regulation, DNA repair, and/or cell cycle checkpoint control. It is suggested that this gene may itself be a tumor suppressor acting in the same pathway as BRCA1. Three transcript variants encoding two different isoforms have been found for this gene. More transcript variants exist, but their full-length natures have not been determined. [provided by RefSeq, Jul 2008],
Function
function:May modulate the functions ascribed to BRCA1 in transcriptional regulation, DNA repair, and/or cell cycle checkpoint control.,PTM:Phosphorylated upon DNA damage, probably by ATM or ATR. Hyperphosphorylation upon ionizing radiation results in dissociation from BRCA1.,PTM:Ubiquitinated; mediated by SIAH1 and leading to its subsequent proteasomal degradation.,subcellular location:Predominantly nuclear.,subunit:Interacts with CTBP, with the C-terminal (BRCT) domains of BRCA1, and with the retinoblastoma protein.,
Protein name
CTIP (Phospho Ser327)
Other name
DNA endonuclease RBBP8 (EC 3.1.-.-;CtBP-interacting protein;CtIP;Retinoblastoma-binding protein 8;RBBP-8;Retinoblastoma-interacting protein and myosin-like;RIM;Sporulation in the absence of SPO11 protein 2 homolog;SAE2)
Fields
>>Homologous recombination
Human protein sequence Database
Q99708
Mouse protein sequence database
Q80YR6
Rat protein sequence database
B1WC58
Cellular localization
Nucleus . Chromosome . Associates with sites of DNA damage in S/G2 phase (PubMed:10764811, PubMed:25349192). Ubiquitinated RBBP8 binds to chromatin following DNA damage (PubMed:16818604). .
Tissue expression
Expressed in ER-positive breast cancer lines, but tends to be down-regulated ER-negative cells (at protein level).
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