• Product nameAnti-CtIP antibody
    See all CtIP primary antibodies
  • Description
    Rabbit polyclonal to CtIP
  • Tested applicationsSuitable for: IHC-Pmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse
  • Immunogen

    Synthetic peptide corresponding to Human CtIP aa 630-679 (internal sequence).
    Database link: Q99708

  • Positive control
    • Human thyroid gland tissue



Our Abpromise guarantee covers the use of ab110143 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
IHC-P 1/50 - 1/100. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.


  • FunctionEndonuclease that cooperates with the MRE11-RAD50-NBN (MRN) complex in processing meiotic and mitotic double-strand breaks (DSBs) by ensuring both resection and intrachromosomal association of the broken ends. Functions downstream of the MRN complex and ATM, promotes ATR activation and its recruitment to DSBs in the S/G2 phase facilitating the generation of ssDNA. Component of the BRCA1-RBBP8 complex that regulates CHEK1 activation and controls cell cycle G2/M checkpoints on DNA damage. Promotes microhomology-mediated alternative end joining (A-NHEJ) during class-switch recombination and plays an essential role in chromosomal translocations.
  • Involvement in diseaseSeckel syndrome 2
    Jawad syndrome
    Genetic variability in RBBP8 is noted as a factor in BRCA1-associated breast cancer risk (PubMed:21799032). Exhibits sensitivity to tamoxifen in certain breast cancer cell lines (PubMed:18171986).
  • Sequence similaritiesBelongs to the COM1/SAE2/CtIP family.
  • DomainThe PXDLS motif binds to a cleft in CtBP proteins.
    The damage-recruitment motif is required for DNA binding and translocation to sites of DNA damage.
  • Post-translational
    Acetylated. Deacetylation by SIRT6 upon DNA damage promotes DNA end resection.
    Hyperphosphorylation upon ionizing radiation results in dissociation from BRCA1. Phosphorylation at Thr-847 by CDK1 is essential for the recruitment to DNA and the DNA repair function. Phosphorylated on Ser-327 as cells enter G2 phase. This phosphorylation is required for binding BRCA1 and for the G2/M DNA damage transition checkpoint control.
    Ubiquitinated (PubMed:14654780, PubMed:16818604). Ubiquitination at multiple sites by BRCA1 (via its N-terminal RING domain) does not lead to its proteosomal degradation but instead the ubiquitinated RBBP8 binds to chromatin following DNA damage and may play a role in G2/M checkpoint control (PubMed:16818604). Ubiquitinated by RNF138 at its N-terminus (PubMed:26502057).
  • Cellular localizationNucleus. Chromosome. Associates with sites of DNA damage in S/G2 phase (PubMed:10764811). Ubiquitinated RBBP8 binds to chromatin following DNA damage (PubMed:16818604).
  • Information by UniProt
  • Database links
  • Alternative names
    • COM1 antibody
    • COM1_HUMAN antibody
    • CtBP interacting protein antibody
    • CtBP-interacting protein antibody
    • CtIP antibody
    • DNA endonuclease RBBP8 antibody
    • JWDS antibody
    • RBBP-8 antibody
    • RBBP8 antibody
    • Retinoblastoma-binding protein 8 antibody
    • Retinoblastoma-interacting protein and myosin-like antibody
    • Rim antibody
    • SAE2 antibody
    • SCKL2 antibody
    • Sporulation in the absence of SPO11 protein 2 homolog antibody
    see all

Anti-CtIP antibody images

  • ab110143, at 1/50 dilution, staining CtIP in paraffin-embedded Human thyroid gland tissue by Immunohistochemistry, in the presence (right panel) or absence (left panel) of the immunizing peptide.

References for Anti-CtIP antibody (ab110143)

ab110143 has not yet been referenced specifically in any publications.

Product Wall

There are currently no Abreviews or Questions for ab110143.
Please use the links above to contact us or submit feedback about this product.