mature B cell differentiation involved in immune response / B cell homeostatic proliferation / negative regulation of T cell differentiation in thymus / DN2 thymocyte differentiation / pre-B cell allelic exclusion / positive regulation of organ growth / regulation of behavioral fear response / V(D)J recombination / negative regulation of T cell apoptotic process / phosphatidylinositol-3,4-bisphosphate binding ...mature B cell differentiation involved in immune response / B cell homeostatic proliferation / negative regulation of T cell differentiation in thymus / DN2 thymocyte differentiation / pre-B cell allelic exclusion / positive regulation of organ growth / regulation of behavioral fear response / V(D)J recombination / negative regulation of T cell apoptotic process / phosphatidylinositol-3,4-bisphosphate binding / negative regulation of thymocyte apoptotic process / phosphatidylinositol-3,5-bisphosphate binding / regulation of T cell differentiation / positive regulation of T cell differentiation / organ growth / T cell lineage commitment / B cell lineage commitment / T cell homeostasis / phosphatidylinositol-3,4,5-trisphosphate binding / T cell differentiation / protein autoubiquitination / : / phosphatidylinositol-4,5-bisphosphate binding / phosphatidylinositol binding / B cell differentiation / thymus development / visual learning / RING-type E3 ubiquitin transferase / ubiquitin-protein transferase activity / ubiquitin protein ligase activity / chromatin organization / T cell differentiation in thymus / endonuclease activity / DNA recombination / adaptive immune response / sequence-specific DNA binding / histone binding / 加水分解酵素; エステル加水分解酵素 / defense response to bacterium / chromatin binding / protein homodimerization activity / DNA binding / zinc ion binding / nucleoplasm / metal ion binding / identical protein binding / nucleus 類似検索 - 分子機能
National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK)
DK036167
米国
引用
ジャーナル: Nat Struct Mol Biol / 年: 2020 タイトル: Cutting antiparallel DNA strands in a single active site. 著者: Xuemin Chen / Yanxiang Cui / Robert B Best / Huaibin Wang / Z Hong Zhou / Wei Yang / Martin Gellert / 要旨: A single enzyme active site that catalyzes multiple reactions is a well-established biochemical theme, but how one nuclease site cleaves both DNA strands of a double helix has not been well ...A single enzyme active site that catalyzes multiple reactions is a well-established biochemical theme, but how one nuclease site cleaves both DNA strands of a double helix has not been well understood. In analyzing site-specific DNA cleavage by the mammalian RAG1-RAG2 recombinase, which initiates V(D)J recombination, we find that the active site is reconfigured for the two consecutive reactions and the DNA double helix adopts drastically different structures. For initial nicking of the DNA, a locally unwound and unpaired DNA duplex forms a zipper via alternating interstrand base stacking, rather than melting as generally thought. The second strand cleavage and formation of a hairpin-DNA product requires a global scissor-like movement of protein and DNA, delivering the scissile phosphate into the rearranged active site.
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2019年3月27日
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Data content type: EM metadata / Data content type: EM metadata / Provider: repository / タイプ: Initial release
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Data content type: Image / Data content type: Image / Provider: repository / タイプ: Initial release
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Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Data processing / Experimental summary / Data content type: EM metadata / EM metadata / カテゴリ: em_admin / em_software / Data content type: EM metadata / EM metadata / Item: _em_admin.last_update / _em_software.name
A: V(D)J recombination-activating protein 1 B: V(D)J recombination-activating protein 2 C: V(D)J recombination-activating protein 1 D: V(D)J recombination-activating protein 2 G: DNA (57-MER) J: DNA (57-MER) F: DNA (46-MER) I: DNA (46-MER) ヘテロ分子