複合体: MutS loaded on matched DNA in the presence of ATP
複合体: DNA mismatch repair protein MutSDNAミスマッチ修復
タンパク質・ペプチド: DNA mismatch repair protein MutSDNAミスマッチ修復
複合体: DNAデオキシリボ核酸
DNA: DNA (5'-D(P*CP*TP*AP*TP*AP*GP*GP*GP*CP*GP*AP*AP*TP*TP*GP*GP*GP*TP*AP*CP*CP*G)-3')
DNA: DNA (5'-D(P*CP*GP*GP*TP*AP*CP*CP*CP*AP*AP*TP*TP*CP*GP*CP*CP*CP*TP*AP*TP*AP*G)-3')
リガンド: ADENOSINE-5'-TRIPHOSPHATE
キーワード
DNA Mismatch Repair MutS / DNA BINDING PROTEIN (DNA結合タンパク質)
機能・相同性
機能・相同性情報
mismatched DNA binding / DNAミスマッチ修復 / damaged DNA binding / ATP binding 類似検索 - 分子機能
DNA mismatch repair protein MutS / DNA mismatch repair protein MutS/MSH / DNA mismatch repair protein MutS-like, N-terminal / DNA mismatch repair protein MutS, connector domain / DNA mismatch repair protein MutS, clamp / DNA mismatch repair protein MutS, N-terminal / MutS, connector domain superfamily / MutS domain I / MutS domain II / MutS family domain IV ...DNA mismatch repair protein MutS / DNA mismatch repair protein MutS/MSH / DNA mismatch repair protein MutS-like, N-terminal / DNA mismatch repair protein MutS, connector domain / DNA mismatch repair protein MutS, clamp / DNA mismatch repair protein MutS, N-terminal / MutS, connector domain superfamily / MutS domain I / MutS domain II / MutS family domain IV / MutS domain III / DNA mismatch repair protein MutS, C-terminal / DNA mismatch repair protein MutS, core / DNA mismatch repair protein MutS, core domain superfamily / MutS domain V / DNA mismatch repair proteins mutS family signature. / DNA-binding domain of DNA mismatch repair MUTS family / ATPase domain of DNA mismatch repair MUTS family / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性
ジャーナル: Nat Struct Mol Biol / 年: 2021 タイトル: The selection process of licensing a DNA mismatch for repair. 著者: Rafael Fernandez-Leiro / Doreth Bhairosing-Kok / Vladislav Kunetsky / Charlie Laffeber / Herrie H Winterwerp / Flora Groothuizen / Alexander Fish / Joyce H G Lebbink / Peter Friedhoff / Titia ...著者: Rafael Fernandez-Leiro / Doreth Bhairosing-Kok / Vladislav Kunetsky / Charlie Laffeber / Herrie H Winterwerp / Flora Groothuizen / Alexander Fish / Joyce H G Lebbink / Peter Friedhoff / Titia K Sixma / Meindert H Lamers / 要旨: DNA mismatch repair detects and removes mismatches from DNA by a conserved mechanism, reducing the error rate of DNA replication by 100- to 1,000-fold. In this process, MutS homologs scan DNA, ...DNA mismatch repair detects and removes mismatches from DNA by a conserved mechanism, reducing the error rate of DNA replication by 100- to 1,000-fold. In this process, MutS homologs scan DNA, recognize mismatches and initiate repair. How the MutS homologs selectively license repair of a mismatch among millions of matched base pairs is not understood. Here we present four cryo-EM structures of Escherichia coli MutS that provide snapshots, from scanning homoduplex DNA to mismatch binding and MutL activation via an intermediate state. During scanning, the homoduplex DNA forms a steric block that prevents MutS from transitioning into the MutL-bound clamp state, which can only be overcome through kinking of the DNA at a mismatch. Structural asymmetry in all four structures indicates a division of labor between the two MutS monomers. Together, these structures reveal how a small conformational change from the homoduplex- to heteroduplex-bound MutS acts as a licensing step that triggers a dramatic conformational change that enables MutL binding and initiation of the repair cascade.
分子 #2: DNA (5'-D(P*CP*TP*AP*TP*AP*GP*GP*GP*CP*GP*AP*AP*TP*TP*GP*GP*GP*TP...
分子
名称: DNA (5'-D(P*CP*TP*AP*TP*AP*GP*GP*GP*CP*GP*AP*AP*TP*TP*GP*GP*GP*TP*AP*CP*CP*G)-3') タイプ: dna / ID: 2 詳細: Plasmid DNA molecule (pRC1765), sequence in structure unidentified コピー数: 1 / 分類: DNA
分子 #3: DNA (5'-D(P*CP*GP*GP*TP*AP*CP*CP*CP*AP*AP*TP*TP*CP*GP*CP*CP*CP*TP...
分子
名称: DNA (5'-D(P*CP*GP*GP*TP*AP*CP*CP*CP*AP*AP*TP*TP*CP*GP*CP*CP*CP*TP*AP*TP*AP*G)-3') タイプ: dna / ID: 3 詳細: Plasmid DNA molecule (pRC1765), sequence in structure unidentified コピー数: 1 / 分類: DNA