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: How mouse RAG recombinase avoids DNA transposition. 著者: Xuemin Chen / Yanxiang Cui / Huaibin Wang / Z Hong Zhou / Martin Gellert / Wei Yang / 要旨: The RAG1-RAG2 recombinase (RAG) cleaves DNA to initiate V(D)J recombination, but RAG also belongs to the RNH-type transposase family. To learn how RAG-catalyzed transposition is inhibited in ...The RAG1-RAG2 recombinase (RAG) cleaves DNA to initiate V(D)J recombination, but RAG also belongs to the RNH-type transposase family. To learn how RAG-catalyzed transposition is inhibited in developing lymphocytes, we determined the structure of a DNA-strand transfer complex of mouse RAG at 3.1-Å resolution. The target DNA is a T form (T for transpositional target), which contains two >80° kinks towards the minor groove, only 3 bp apart. RAG2, a late evolutionary addition in V(D)J recombination, appears to enforce the sharp kinks and additional inter-segment twisting in target DNA and thus attenuates unwanted transposition. In contrast to strand transfer complexes of genuine transposases, where severe kinks occur at the integration sites of target DNA and thus prevent the reverse reaction, the sharp kink with RAG is 1 bp away from the integration site. As a result, RAG efficiently catalyzes the disintegration reaction that restores the RSS (donor) and target DNA.