DNA repair protein crb2 - P87074 (RHP9_SCHPO)


Protein Feature View of PDB entries mapped to a UniProtKB sequence  

  • Number of PDB entries for P87074: 5
Essential for cell cycle arrest at the G1 and G2 stages following DNA damage by X-, and UV-irradiation, or inactivation of DNA ligase. Plays a role in the response to DNA damage (PubMed:9153313, PubMed:9407031). Interaction with rad4 via its phosphorylation sites in the N-terminus couples the DNA checkpoint apparatus to chromatin via interaction of its C-terminal BRCT domains with epigenetic modifications on histones H4 and H2A, respectively, in the G1/S phase of the cell cycle, and facilitates recruitment of the checkpoint kinase chk1 (PubMed:15550243, PubMed:16778077, PubMed:18826944, PubMed:20679485, PubMed:22792081). UniProt
Pathway Maps
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Subunit Structure
Homodimer. Dimerization is mediated via the BRCT domain (PubMed:16778077, PubMed:18676809). Interacts (via BRCT domain) with rad3 (PubMed:14739927). Interacts with rad4 (via BRCT1,2 domains) (PubMed:9407031, PubMed:14739927); a single rad4 molecule interacts simultaneously with both Thr-187 phosphorylation sites in a crb2 dimer (PubMed:24074952). Interacts (via Tudor domain) with histone H4K20me2 (PubMed:18826944, PubMed:17190600). Interacts (via BRCT dmain) with histone H2AS128ph (gamma-H2A) (PubMed:20679485, PubMed:18676809). Interacts with chk1 (PubMed:9407031, PubMed:14739927, PubMed:22792081). Interacts with sad1 (PubMed:14655046). UniProt
The Tudor-like region mediates binding to H4K20me2. UniProt
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The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).
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