Phospho-CtIP (Thr847) Antibody - #AF3547
| Product: | Phospho-CtIP (Thr847) Antibody |
| Catalog: | AF3547 |
| Description: | Rabbit polyclonal antibody to Phospho-CtIP (Thr847) |
| Application: | IF/ICC |
| Reactivity: | Human |
| Mol.Wt.: | 102kD(Calculated). |
| Uniprot: | Q99708 |
| RRID: | AB_2846861 |
Product Info
*The optimal dilutions should be determined by the end user.
*Tips:
WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.
Cite Format: Affinity Biosciences Cat# AF3547, RRID:AB_2846861.
Fold/Unfold
COM1; COM1_HUMAN; CtBP interacting protein; CtBP-interacting protein; CtIP; DNA endonuclease RBBP8; JWDS; RB binding protein 8 endonuclease; RBBP-8; RBBP8; Retinoblastoma-binding protein 8; Retinoblastoma-interacting protein and myosin-like; Rim; SAE2; SCKL2; Sporulation in the absence of SPO11 protein 2 homolog;
Immunogens
A synthesized peptide derived from human CtIP around the phosphorylation site of Thr847.
Expressed in ER-positive breast cancer lines, but tends to be down-regulated ER-negative cells (at protein level).
- Q99708 CTIP_HUMAN:
- Protein BLAST With
- NCBI/
- ExPASy/
- Uniprot
MNISGSSCGSPNSADTSSDFKDLWTKLKECHDREVQGLQVKVTKLKQERILDAQRLEEFFTKNQQLREQQKVLHETIKVLEDRLRAGLCDRCAVTEEHMRKKQQEFENIRQQNLKLITELMNERNTLQEENKKLSEQLQQKIENDQQHQAAELECEEDVIPDSPITAFSFSGVNRLRRKENPHVRYIEQTHTKLEHSVCANEMRKVSKSSTHPQHNPNENEILVADTYDQSQSPMAKAHGTSSYTPDKSSFNLATVVAETLGLGVQEESETQGPMSPLGDELYHCLEGNHKKQPFEESTRNTEDSLRFSDSTSKTPPQEELPTRVSSPVFGATSSIKSGLDLNTSLSPSLLQPGKKKHLKTLPFSNTCISRLEKTRSKSEDSALFTHHSLGSEVNKIIIQSSNKQILINKNISESLGEQNRTEYGKDSNTDKHLEPLKSLGGRTSKRKKTEEESEHEVSCPQASFDKENAFPFPMDNQFSMNGDCVMDKPLDLSDRFSAIQRQEKSQGSETSKNKFRQVTLYEALKTIPKGFSSSRKASDGNCTLPKDSPGEPCSQECIILQPLNKCSPDNKPSLQIKEENAVFKIPLRPRESLETENVLDDIKSAGSHEPIKIQTRSDHGGCELASVLQLNPCRTGKIKSLQNNQDVSFENIQWSIDPGADLSQYKMDVTVIDTKDGSQSKLGGETVDMDCTLVSETVLLKMKKQEQKGEKSSNEERKMNDSLEDMFDRTTHEEYESCLADSFSQAADEEEELSTATKKLHTHGDKQDKVKQKAFVEPYFKGDERETSLQNFPHIEVVRKKEERRKLLGHTCKECEIYYADMPAEEREKKLASCSRHRFRYIPPNTPENFWEVGFPSTQTCMERGYIKEDLDPCPRPKRRQPYNAIFSPKGKEQKT
Research Backgrounds
Endonuclease that cooperates with the MRE11-RAD50-NBN (MRN) complex in DNA-end resection, the first step of double-strand break (DSB) repair through the homologous recombination (HR) pathway. HR is restricted to S and G2 phases of the cell cycle and preferentially repairs DSBs resulting from replication fork collapse. Key determinant of DSB repair pathway choice, as it commits cells to HR by preventing classical non-homologous end-joining (NHEJ). 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. During immunoglobulin heavy chain class-switch recombination, promotes microhomology-mediated alternative end joining (A-NHEJ) and plays an essential role in chromosomal translocations (By similarity).
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. Phosphorylation at Thr-315, probably catalyzed by CDK2, is required for PIN1-binding, while phosphorylation at Ser-276 serves as a PIN1 isomerization site. Phosphorylation at Thr-315 is cell-cycle dependent. It steadily increases during S phase, peaks at late S/G2 phase, and drops at G1.
Ubiquitinated. Ubiquitination at multiple sites by BRCA1 (via its N-terminal RING domain) does not lead to its proteasomal degradation but instead the ubiquitinated RBBP8 binds to chromatin following DNA damage and may play a role in G2/M checkpoint control. Ubiquitinated by RNF138 at its N-terminus. Ubiquitinated through 'Lys-48' by the E3 CUL3-KLHL15 complex; this modification leads to proteasomal degradation. Ubiquitinated by the E3 FZR1/APC/C complex; this modification leads to proteasomal degradation.
Nucleus. Chromosome.
Note: Associates with sites of DNA damage in S/G2 phase (PubMed:10764811, PubMed:25349192). Ubiquitinated RBBP8 binds to chromatin following DNA damage (PubMed:16818604).
Expressed in ER-positive breast cancer lines, but tends to be down-regulated ER-negative cells (at protein level).
The 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.
Belongs to the COM1/SAE2/CtIP family.
Research Fields
· Genetic Information Processing > Replication and repair > Homologous recombination.
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