1II7

Crystal structure of P. furiosus Mre11 with manganese and dAMP

1II7 の概要

• エントリーDOI: 10.2210/pdb1ii7/pdb
• 関連するPDBエントリー: 1F2T 1F2U 1II8
• 分子名称: Mre11 nuclease, MANGANESE (II) ION, SULFATE ION, ... (6 entities in total)
• 機能のキーワード: rad50, mre11, dna double-strand break repair, damp, manganese, replication
• 由来する生物種: Pyrococcus furiosus
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 78791.28

構造登録者

Hopfner, K.-P.,Karcher, A.,Craig, L.,Woo, T.T.,Carney, J.P.,Tainer, J.A. (登録日: 2001-04-20, 公開日: 2001-05-30, 最終更新日: 2024-05-29)

主引用文献

Hopfner, K.P.,Karcher, A.,Craig, L.,Woo, T.T.,Carney, J.P.,Tainer, J.A.
Structural biochemistry and interaction architecture of the DNA double-strand break repair Mre11 nuclease and Rad50-ATPase.
Cell(Cambridge,Mass.), 105:473-485, 2001

PubMed Abstract: To clarify functions of the Mre11/Rad50 (MR) complex in DNA double-strand break repair, we report Pyrococcus furiosus Mre11 crystal structures, revealing a protein phosphatase-like, dimanganese binding domain capped by a unique domain controlling active site access. These structures unify Mre11's multiple nuclease activities in a single endo/exonuclease mechanism and reveal eukaryotic macromolecular interaction sites by mapping human and yeast Mre11 mutations. Furthermore, the structure of the P. furiosus Rad50 ABC-ATPase with its adjacent coiled-coil defines a compact Mre11/Rad50-ATPase complex and suggests that Rad50-ATP-driven conformational switching directly controls the Mre11 exonuclease. Electron microscopy, small angle X-ray scattering, and ultracentrifugation data of human and P. furiosus MR reveal a dual functional complex consisting of a (Mre11)2/(Rad50)2 heterotetrameric DNA processing head and a double coiled-coil linker.

PubMed: 11371344
DOI: 10.1016/S0092-8674(01)00335-X

実験手法

X-RAY DIFFRACTION (2.2 Å)