Histone chaperone activity of Fanconi anemia proteins, FANCD2 and FANCI, is required for DNA crosslink repair

Koichi Sato, Masamichi Ishiai, Kazue Toda, Satoshi Furukoshi, Akihisa Osakabe, Hiroaki Tachiwana, Yoshimasa Takizawa, Wataru Kagawa, Hiroyuki Kitao, Naoshi Dohmae, Chikashi Obuse, Hiroshi Kimura, Minoru Takata, Hitoshi Kurumizaka

研究成果: Contribution to journalArticle査読

47 被引用数 (Scopus)

抄録

Fanconi anaemia (FA) is a rare hereditary disorder characterized by genomic instability and cancer susceptibility. A key FA protein, FANCD2, is targeted to chromatin with its partner, FANCI, and plays a critical role in DNA crosslink repair. However, the molecular function of chromatin-bound FANCD2-FANCI is still poorly understood. In the present study, we found that FANCD2 possesses nucleosome-assembly activity in vitro. The mobility of histone H3 was reduced in FANCD2-knockdown cells following treatment with an interstrand DNA crosslinker, mitomycin C. Furthermore, cells harbouring FANCD2 mutations that were defective in nucleosome assembly displayed impaired survival upon cisplatin treatment. Although FANCI by itself lacked nucleosome-assembly activity, it significantly stimulated FANCD2-mediated nucleosome assembly. These observations suggest that FANCD2-FANCI may regulate chromatin dynamics during DNA repair.

本文言語英語
ページ(範囲)3524-3536
ページ数13
ジャーナルEMBO Journal
31
17
DOI
出版ステータス出版済み - 8 29 2012

All Science Journal Classification (ASJC) codes

  • 神経科学(全般)
  • 分子生物学
  • 生化学、遺伝学、分子生物学(全般)
  • 免疫学および微生物学(全般)

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