- EMDB-49108: A gap-filling complex with Pol mu engaged in the NHEJ Pathway -
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基本情報
登録情報
データベース: EMDB / ID: EMD-49108
タイトル
A gap-filling complex with Pol mu engaged in the NHEJ Pathway
マップデータ
consensus map of NHEJ gap-filling complex
試料
複合体: A gap-filling complex with Pol mu engaged in the NHEJ Pathway
タンパク質・ペプチド: x 7種
DNA: x 4種
リガンド: x 2種
キーワード
NHEJ / Pol mu / ligation / XLF / PAXX / DNA repair / Ligase IV / LIGASE-TRANSFERASE-DNA complex
機能・相同性
機能・相同性情報
FHA domain binding / positive regulation of chromosome organization / positive regulation of ligase activity / DNA ligase IV complex / DNA ligase activity / Ku70:Ku80 complex / DN2 thymocyte differentiation / DNA ligase (ATP) / negative regulation of t-circle formation / T cell receptor V(D)J recombination ...FHA domain binding / positive regulation of chromosome organization / positive regulation of ligase activity / DNA ligase IV complex / DNA ligase activity / Ku70:Ku80 complex / DN2 thymocyte differentiation / DNA ligase (ATP) / negative regulation of t-circle formation / T cell receptor V(D)J recombination / DNA end binding / pro-B cell differentiation / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA ligase (ATP) activity / DNA-dependent protein kinase complex / DNA-dependent protein kinase-DNA ligase 4 complex / immunoglobulin V(D)J recombination / nonhomologous end joining complex / nucleotide-excision repair, DNA gap filling / single strand break repair / regulation of smooth muscle cell proliferation / cellular response to X-ray / V(D)J recombination / nuclear telomere cap complex / double-strand break repair via classical nonhomologous end joining / isotype switching / Cytosolic sensors of pathogen-associated DNA / protein localization to site of double-strand break / IRF3-mediated induction of type I IFN / positive regulation of neurogenesis / recombinational repair / regulation of telomere maintenance / U3 snoRNA binding / protein localization to chromosome, telomeric region / DNA biosynthetic process / cellular response to lithium ion / cellular hyperosmotic salinity response / response to ionizing radiation / 2-LTR circle formation / telomeric DNA binding / hematopoietic stem cell proliferation / ligase activity / positive regulation of protein kinase activity / 付加脱離酵素(リアーゼ); 炭素-酸素リアーゼ類; その他の炭素-酸素リアーゼ / site of DNA damage / T cell differentiation / 5'-deoxyribose-5-phosphate lyase activity / somatic stem cell population maintenance / hematopoietic stem cell differentiation / response to X-ray / chromosome organization / ATP-dependent activity, acting on DNA / telomere maintenance via telomerase / SUMOylation of DNA damage response and repair proteins / somatic hypermutation of immunoglobulin genes / condensed chromosome / DNA polymerase binding / neurogenesis / telomere maintenance / activation of innate immune response / DNA helicase activity / cyclin binding / cellular response to leukemia inhibitory factor / central nervous system development / B cell differentiation / stem cell proliferation / response to gamma radiation / cellular response to ionizing radiation / small-subunit processome / enzyme activator activity / Nonhomologous End-Joining (NHEJ) / cellular response to gamma radiation / protein-DNA complex / base-excision repair / double-strand break repair via nonhomologous end joining / 加水分解酵素; 酸無水物に作用; 酸無水物に作用・細胞または細胞小器官の運動に関与 / establishment of integrated proviral latency / fibrillar center / positive regulation of fibroblast proliferation / T cell differentiation in thymus / double-strand break repair / site of double-strand break / double-stranded DNA binding / neuron apoptotic process / fibroblast proliferation / scaffold protein binding / secretory granule lumen / DNA recombination / transcription regulator complex / molecular adaptor activity / in utero embryonic development / ficolin-1-rich granule lumen / DNA-directed DNA polymerase / negative regulation of neuron apoptotic process / damaged DNA binding / DNA-directed DNA polymerase activity / chromosome, telomeric region / cell population proliferation / transcription cis-regulatory region binding 類似検索 - 分子機能
Protein PAXX / : / PAXX, PAralog of XRCC4 and XLF, also called C9orf142 / XLF, N-terminal / : / : / XLF N-terminal domain / XLF protein coiled-coil region / DNA ligase IV domain / DNA ligase IV ...Protein PAXX / : / PAXX, PAralog of XRCC4 and XLF, also called C9orf142 / XLF, N-terminal / : / : / XLF N-terminal domain / XLF protein coiled-coil region / DNA ligase IV domain / DNA ligase IV / DNA ligase 4 / DNA Ligase 4, adenylation domain / XRCC4, N-terminal domain superfamily / DNA repair protein XRCC4 / : / : / : / XRCC4 N-terminal domain / XRCC4 coiled-coil / XRCC4 C-terminal region / XRCC4-like, N-terminal domain superfamily / Ku70, bridge and pillars domain superfamily / : / Ku70 / Ku, C-terminal / Ku, C-terminal domain superfamily / Ku C terminal domain like / DNA ligase, ATP-dependent / DNA ligase, ATP-dependent, N-terminal / DNA ligase, ATP-dependent, N-terminal domain superfamily / DNA ligase N terminus / Ku80 / Ku70/Ku80 C-terminal arm / Ku70/Ku80 C-terminal arm / Ku70/Ku80, N-terminal alpha/beta / Ku70/Ku80 N-terminal alpha/beta domain / Ku70/Ku80 beta-barrel domain / Ku70 and Ku80 are 70kDa and 80kDa subunits of the Lupus Ku autoantigen / Ku70/Ku80 beta-barrel domain / SPOC-like, C-terminal domain superfamily / ATP-dependent DNA ligase AMP-binding site. / ATP-dependent DNA ligase signature 2. / DNA ligase, ATP-dependent, C-terminal / ATP dependent DNA ligase C terminal region / DNA ligase, ATP-dependent, conserved site / ATP-dependent DNA ligase family profile. / DNA-directed DNA/RNA polymerase mu / DNA ligase, ATP-dependent, central / ATP dependent DNA ligase domain / SAP domain superfamily / DNA nucleotidylexotransferase (TdT) / DNA-directed DNA/RNA polymerase mu / DNA repair protein XRCC4-like, C-terminal / SAP motif profile. / SAP domain / Putative DNA-binding (bihelical) motif predicted to be involved in chromosomal organisation / SAP domain / BRCA1 C Terminus (BRCT) domain / DNA polymerase beta, palm domain / DNA polymerase beta palm / breast cancer carboxy-terminal domain / DNA polymerase lambda, fingers domain / Fingers domain of DNA polymerase lambda / DNA-directed DNA polymerase X / DNA polymerase beta-like, N-terminal domain / Helix-hairpin-helix domain / DNA polymerase X family / DNA polymerase family X, binding site / DNA polymerase family X signature. / DNA polymerase lambda lyase domain superfamily / DNA polymerase family X / DNA polymerase beta, thumb domain / DNA polymerase, thumb domain superfamily / DNA polymerase beta thumb / von Willebrand factor (vWF) type A domain / von Willebrand factor, type A / BRCT domain profile. / BRCT domain / BRCT domain superfamily / Nucleotidyltransferase superfamily / von Willebrand factor A-like domain superfamily / Nucleic acid-binding, OB-fold 類似検索 - ドメイン・相同性
X-ray repair cross-complementing protein 6 / X-ray repair cross-complementing protein 5 / DNA ligase 4 / DNA repair protein XRCC4 / Protein PAXX / Non-homologous end-joining factor 1 / DNA-directed DNA/RNA polymerase mu 類似検索 - 構成要素
National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK)
米国
引用
ジャーナル: Nature / 年: 2025 タイトル: Dynamic assemblies and coordinated reactions of non-homologous end joining. 著者: Lan Liu / Jun Li / Metztli Cisneros-Aguirre / Arianna Merkell / Jeremy M Stark / Martin Gellert / Wei Yang / 要旨: Non-homologous end joining (NHEJ) is the main repair pathway of double-strand DNA breaks in higher eukaryotes. Here we report reconstitution of the final steps of NHEJ and structures of DNA ...Non-homologous end joining (NHEJ) is the main repair pathway of double-strand DNA breaks in higher eukaryotes. Here we report reconstitution of the final steps of NHEJ and structures of DNA polymerase μ and ligase IV (LIG4) engaged in gap filling and end joining. These reactions take place in a flexible ω-shaped framework composed of XRCC4 and XLF. Two broken DNA ends, each encircled by Ku70-Ku80 internally, are docked onto the ω frame, mediated by LIG4. DNA polymerase and ligase attached to each ω arm repair only one broken strand of a defined polarity; the final steps of NHEJ requires coordination and toggling of a pair of such enzymes. The facilitators XLF and PAXX additively stimulate NHEJ reactions. As DNA-end sensor and protector, LIG4 replaces DNA-PKcs for end joining and bridges the two DNA ends for polymerase to fill remaining gaps. These assemblies present new targets for NHEJ inhibition to enhance efficacy of radiotherapy and accuracy of gene editing.
モデルのタイプ: NONE / 詳細: Ab initio map reconstituted by cryoSPARC
最終 再構成
想定した対称性 - 点群: C1 (非対称) / 解像度のタイプ: BY AUTHOR / 解像度: 2.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF 詳細: The resolution was calculated by PostProcess in RELION with the composite half maps generated by "Combined_Focused_Maps" in Phenix. 使用した粒子像数: 671447