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|3r45, resolution 2.60Å ()|
|Gene:||CENPA (Homo sapiens), HJURP (Homo sapiens)|
Structure of a CENP-A-Histone H4 Heterodimer in complex with chaperone HJURP
In higher eukaryotes, the centromere is epigenetically specified by the histone H3 variant Centromere Protein-A (CENP-A). Deposition of CENP-A to the centromere requires histone chaperone HJURP (Holliday junction recognition protein). The crystal structure of an HJURP-CENP-A-histone H4 complex shows that HJURP binds a CENP-A-H4 heterodimer. The C-terminal beta-sheet domain of HJURP caps the DNA-binding region of the histone heterodimer, preventing it from spontaneous association with DNA. Our analysis also revealed a novel site in CENP-A that distinguishes it from histone H3 in its ability to bind HJURP. These findings provide key information for specific recognition of CENP-A and mechanistic insights into the process of centromeric chromatin assembly.
Structure of a CENP-A-histone H4 heterodimer in complex with chaperone HJURP., Hu H, Liu Y, Wang M, Fang J, Huang H, Yang N, Li Y, Wang J, Yao X, Shi Y, Li G, Xu RM, Genes Dev. 2011 May 1;25(9):901-6. Epub 2011 Apr 8. PMID:21478274
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.