5DNY

Structure of the ATPrS-Mre11/Rad50-DNA complex

5DNY の概要

• エントリーDOI: 10.2210/pdb5dny/pdb
• 分子名称: DNA double-strand break repair protein Mre11, DNA double-strand break repair Rad50 ATPase,DNA double-strand break repair Rad50 ATPase, DNA (27-MER), ... (7 entities in total)
• 機能のキーワード: nuclease, recombination-dna complex, recombination/dna
• 由来する生物種: Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440); 詳細
• タンパク質・核酸の鎖数: 6
• 化学式量合計: 193256.18

構造登録者

Liu, Y. (登録日: 2015-09-10, 公開日: 2016-02-24, 最終更新日: 2024-03-20)

主引用文献

Liu, Y.,Sung, S.,Kim, Y.,Li, F.,Gwon, G.,Jo, A.,Kim, A.K.,Kim, T.,Song, O.K.,Lee, S.E.,Cho, Y.
ATP-dependent DNA binding, unwinding, and resection by the Mre11/Rad50 complex.
Embo J., 35:743-758, 2016

PubMed Abstract: ATP-dependent DNA end recognition and nucleolytic processing are central functions of the Mre11/Rad50 (MR) complex in DNA double-strand break repair. However, it is still unclear how ATP binding and hydrolysis primes the MR function and regulates repair pathway choice in cells. Here,Methanococcus jannaschii MR-ATPγS-DNA structure reveals that the partly deformed DNA runs symmetrically across central groove between two ATPγS-bound Rad50 nucleotide-binding domains. Duplex DNA cannot access the Mre11 active site in the ATP-free full-length MR complex. ATP hydrolysis drives rotation of the nucleotide-binding domain and induces the DNA melting so that the substrate DNA can access Mre11. Our findings suggest that the ATP hydrolysis-driven conformational changes in both DNA and the MR complex coordinate the melting and endonuclease activity.

PubMed: 26717941
DOI: 10.15252/embj.201592462

実験手法

X-RAY DIFFRACTION (3.11 Å)