タンパク質・ペプチド: X-ray repair cross-complementing protein 6
タンパク質・ペプチド: X-ray repair cross-complementing protein 5
キーワード
NHEJ / Ku70/80 / XRCC5 / XRCC6 / DNA damage / DNA BINDING PROTEIN
機能・相同性
機能・相同性情報
: / Ku70:Ku80 complex / negative regulation of t-circle formation / DNA end binding / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA-dependent protein kinase complex / DNA-dependent protein kinase-DNA ligase 4 complex / cellular response to X-ray / nonhomologous end joining complex ...: / Ku70:Ku80 complex / negative regulation of t-circle formation / DNA end binding / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA-dependent protein kinase complex / DNA-dependent protein kinase-DNA ligase 4 complex / cellular response to X-ray / nonhomologous end joining complex / regulation of smooth muscle cell proliferation / nuclear telomere cap complex / double-strand break repair via classical nonhomologous end joining / Cytosolic sensors of pathogen-associated DNA / IRF3-mediated induction of type I IFN / regulation of telomere maintenance / recombinational repair / U3 snoRNA binding / protein localization to chromosome, telomeric region / cellular response to fatty acid / cellular hyperosmotic salinity response / positive regulation of neurogenesis / telomeric DNA binding / 2-LTR circle formation / hematopoietic stem cell proliferation / site of DNA damage / 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 / 5'-deoxyribose-5-phosphate lyase activity / ATP-dependent activity, acting on DNA / hematopoietic stem cell differentiation / positive regulation of protein kinase activity / telomere maintenance via telomerase / DNA helicase activity / telomere maintenance / activation of innate immune response / cyclin binding / cellular response to leukemia inhibitory factor / enzyme activator activity / neurogenesis / Nonhomologous End-Joining (NHEJ) / small-subunit processome / cellular response to gamma radiation / protein-DNA complex / 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 / double-strand break repair via nonhomologous end joining / double-strand break repair / double-stranded DNA binding / scaffold protein binding / secretory granule lumen / DNA recombination / transcription regulator complex / ficolin-1-rich granule lumen / damaged DNA binding / chromosome, telomeric region / transcription cis-regulatory region binding / response to xenobiotic stimulus / ribonucleoprotein complex / innate immune response / negative regulation of DNA-templated transcription / ubiquitin protein ligase binding / DNA damage response / Neutrophil degranulation / protein-containing complex binding / positive regulation of DNA-templated transcription / nucleolus / positive regulation of transcription by RNA polymerase II / protein-containing complex / ATP hydrolysis activity / DNA binding / RNA binding / extracellular region / nucleoplasm / ATP binding / nucleus / membrane / plasma membrane / cytosol 類似検索 - 分子機能
Ku70, bridge and pillars domain superfamily / : / Ku70 / Ku, C-terminal / Ku, C-terminal domain superfamily / Ku C terminal domain like / Ku80 / Ku70/Ku80 C-terminal arm / Ku70/Ku80 C-terminal arm / Ku70/Ku80, N-terminal alpha/beta ...Ku70, bridge and pillars domain superfamily / : / Ku70 / Ku, C-terminal / Ku, C-terminal domain superfamily / Ku C terminal domain like / Ku80 / Ku70/Ku80 C-terminal arm / Ku70/Ku80 C-terminal arm / Ku70/Ku80, N-terminal alpha/beta / Ku70/Ku80 beta-barrel domain / Ku70/Ku80 N-terminal alpha/beta 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 / SAP domain superfamily / SAP motif profile. / SAP domain / Putative DNA-binding (bihelical) motif predicted to be involved in chromosomal organisation / SAP domain / von Willebrand factor (vWF) type A domain / von Willebrand factor, type A / von Willebrand factor A-like domain superfamily 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 類似検索 - 構成要素
ジャーナル: FEBS J / 年: 2021 タイトル: SAP domain forms a flexible part of DNA aperture in Ku70/80. 著者: Aleš Hnízda / Petr Tesina / Thanh-Binh Nguyen / Zdeněk Kukačka / Lukas Kater / Amanda K Chaplin / Roland Beckmann / David B Ascher / Petr Novák / Tom L Blundell / 要旨: Nonhomologous end joining (NHEJ) is a DNA repair mechanism that religates double-strand DNA breaks to maintain genomic integrity during the entire cell cycle. The Ku70/80 complex recognizes DNA ...Nonhomologous end joining (NHEJ) is a DNA repair mechanism that religates double-strand DNA breaks to maintain genomic integrity during the entire cell cycle. The Ku70/80 complex recognizes DNA breaks and serves as an essential hub for recruitment of NHEJ components. Here, we describe intramolecular interactions of the Ku70 C-terminal domain, known as the SAP domain. Using single-particle cryo-electron microscopy, mass spectrometric analysis of intermolecular cross-linking and molecular modelling simulations, we captured variable positions of the SAP domain depending on DNA binding. The first position was localized at the DNA aperture in the Ku70/80 apo form but was not observed in the DNA-bound state. The second position, which was observed in both apo and DNA-bound states, was found below the DNA aperture, close to the helical arm of Ku70. The localization of the SAP domain in the DNA aperture suggests a function as a flexible entry gate for broken DNA. DATABASES: EM maps have been deposited in EMDB (EMD-11933). Coordinates have been deposited in Protein Data Bank (PDB 7AXZ). Other data are available from corresponding authors upon a request.