登録情報 データベース : EMDB / ID : EMD-4166 構造の表示 ダウンロードとリンクタイトル Cryo-EM structure of TRIP13 in complex with ATP gamma S, p31comet, C-Mad2 and Cdc20 マップデータTRIP13:p31-Substrate map 詳細 試料複合体 : TRIP13 hexamer in complex with ATP gamma S, p31comet, C-Mad2 and Cdc20複合体 : MAD2L1-binding protein, Pachytene checkpoint protein 2 homologタンパク質・ペプチド : Pachytene checkpoint protein 2 homologタンパク質・ペプチド : MAD2L1-binding protein複合体 : Cell division cycle protein 20 homolog, Mitotic spindle assembly checkpoint protein MAD2Aタンパク質・ペプチド : Cell division cycle protein 20 homologタンパク質・ペプチド : Mitotic spindle assembly checkpoint protein MAD2Aリガンド : PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER 詳細 キーワード AAA+ ATPase / remodeller / spindle assembly checkpoint (SAC) / mitosis / chromosome segregation / cell cycle機能・相同性 機能・相同性情報分子機能 ドメイン・相同性 構成要素
deactivation of mitotic spindle assembly checkpoint / mitotic spindle assembly checkpoint MAD1-MAD2 complex / metaphase/anaphase transition of cell cycle / metaphase/anaphase transition of meiosis I / Inhibition of the proteolytic activity of APC/C required for the onset of anaphase by mitotic spindle checkpoint components / female meiosis I / mitotic checkpoint complex / positive regulation of anaphase-promoting complex-dependent catabolic process / meiotic recombination checkpoint signaling / positive regulation of mitotic cell cycle spindle assembly checkpoint ... deactivation of mitotic spindle assembly checkpoint / mitotic spindle assembly checkpoint MAD1-MAD2 complex / metaphase/anaphase transition of cell cycle / metaphase/anaphase transition of meiosis I / Inhibition of the proteolytic activity of APC/C required for the onset of anaphase by mitotic spindle checkpoint components / female meiosis I / mitotic checkpoint complex / positive regulation of anaphase-promoting complex-dependent catabolic process / meiotic recombination checkpoint signaling / positive regulation of mitotic cell cycle spindle assembly checkpoint / establishment of centrosome localization / positive regulation of synapse maturation / regulation of meiotic nuclear division / Conversion from APC/C:Cdc20 to APC/C:Cdh1 in late anaphase / regulation of dendrite development / Inactivation of APC/C via direct inhibition of the APC/C complex / APC/C:Cdc20 mediated degradation of mitotic proteins / positive regulation of synaptic plasticity / synaptonemal complex assembly / Phosphorylation of Emi1 / anaphase-promoting complex / regulation of meiotic cell cycle / anaphase-promoting complex-dependent catabolic process / anaphase-promoting complex binding / regulation of exit from mitosis / nuclear pore nuclear basket / positive regulation of mitotic metaphase/anaphase transition / positive regulation of ubiquitin protein ligase activity / male meiosis I / ubiquitin ligase activator activity / negative regulation of mitotic cell cycle / reciprocal meiotic recombination / oocyte maturation / mitotic sister chromatid cohesion / oogenesis / negative regulation of ubiquitin protein ligase activity / mitotic spindle assembly checkpoint signaling / Regulation of APC/C activators between G1/S and early anaphase / establishment of mitotic spindle orientation / mitotic sister chromatid segregation / mitotic spindle assembly / spermatid development / APC/C:Cdc20 mediated degradation of Cyclin B / ubiquitin-like ligase-substrate adaptor activity / APC-Cdc20 mediated degradation of Nek2A / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / APC/C:Cdc20 mediated degradation of Securin / SCF-beta-TrCP mediated degradation of Emi1 / regulation of mitotic cell cycle / Resolution of Sister Chromatid Cohesion / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / male germ cell nucleus / transcription coregulator activity / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / RHO GTPases Activate Formins / negative regulation of protein catabolic process / kinetochore / spindle / histone deacetylase binding / Separation of Sister Chromatids / spindle pole / mitotic spindle / Antigen processing: Ubiquitination & Proteasome degradation / nervous system development / double-strand break repair / chromosome / spermatogenesis / nuclear membrane / transcription by RNA polymerase II / cell differentiation / Ub-specific processing proteases / protein ubiquitination / cell division / positive regulation of cell population proliferation / centrosome / nucleolus / perinuclear region of cytoplasm / protein homodimerization activity / ATP hydrolysis activity / nucleoplasm / ATP binding / identical protein binding / nucleus / cytosol / cytoplasm 類似検索 - 分子機能 Mad1/Cdc20-bound-Mad2 binding protein / : / Mad1 and Cdc20-bound-Mad2 binding / TRIP13-like, AAA+ ATPase lid C-terminal domain / TRIP13 N-terminal domain / Pachytene checkpoint protein 2-like / : / CDC20/Fizzy WD40 domain / The WD repeat Cdc20/Fizzy family / Mad2-like ... Mad1/Cdc20-bound-Mad2 binding protein / : / Mad1 and Cdc20-bound-Mad2 binding / TRIP13-like, AAA+ ATPase lid C-terminal domain / TRIP13 N-terminal domain / Pachytene checkpoint protein 2-like / : / CDC20/Fizzy WD40 domain / The WD repeat Cdc20/Fizzy family / Mad2-like / HORMA domain / HORMA domain / HORMA domain profile. / HORMA domain superfamily / ClpA/B family / ATPase, AAA-type, conserved site / AAA-protein family signature. / ATPase family associated with various cellular activities (AAA) / ATPase, AAA-type, core / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性 Cell division cycle protein 20 homolog / Mitotic spindle assembly checkpoint protein MAD2A / MAD2L1-binding protein / Pachytene checkpoint protein 2 homolog 類似検索 - 構成要素生物種 Homo sapiens (ヒト)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 4.6 Å 詳細 データ登録者Alfieri C / Chang L 資金援助 英国, 1件 詳細 詳細を隠すOrganization Grant number 国 Cancer Research UK C576/A14109 英国
引用ジャーナル : Nature / 年 : 2018タイトル : Mechanism for remodelling of the cell cycle checkpoint protein MAD2 by the ATPase TRIP13.著者 : Claudio Alfieri / Leifu Chang / David Barford / 要旨 : The maintenance of genome stability during mitosis is coordinated by the spindle assembly checkpoint (SAC) through its effector the mitotic checkpoint complex (MCC), an inhibitor of the anaphase- ... The maintenance of genome stability during mitosis is coordinated by the spindle assembly checkpoint (SAC) through its effector the mitotic checkpoint complex (MCC), an inhibitor of the anaphase-promoting complex (APC/C, also known as the cyclosome). Unattached kinetochores control MCC assembly by catalysing a change in the topology of the β-sheet of MAD2 (an MCC subunit), thereby generating the active closed MAD2 (C-MAD2) conformer. Disassembly of free MCC, which is required for SAC inactivation and chromosome segregation, is an ATP-dependent process driven by the AAA+ ATPase TRIP13. In combination with p31, an SAC antagonist, TRIP13 remodels C-MAD2 into inactive open MAD2 (O-MAD2). Here, we present a mechanism that explains how TRIP13-p31 disassembles the MCC. Cryo-electron microscopy structures of the TRIP13-p31-C-MAD2-CDC20 complex reveal that p31 recruits C-MAD2 to a defined site on the TRIP13 hexameric ring, positioning the N terminus of C-MAD2 (MAD2) to insert into the axial pore of TRIP13 and distorting the TRIP13 ring to initiate remodelling. Molecular modelling suggests that by gripping MAD2 within its axial pore, TRIP13 couples sequential ATP-driven translocation of its hexameric ring along MAD2 to push upwards on, and simultaneously rotate, the globular domains of the p31-C-MAD2 complex. This unwinds a region of the αA helix of C-MAD2 that is required to stabilize the C-MAD2 β-sheet, thus destabilizing C-MAD2 in favour of O-MAD2 and dissociating MAD2 from p31. Our study provides insights into how specific substrates are recruited to AAA+ ATPases through adaptor proteins and suggests a model of how translocation through the axial pore of AAA+ ATPases is coupled to protein remodelling. 履歴 登録 2017年11月20日 - ヘッダ(付随情報) 公開 2017年11月29日 - マップ公開 2018年5月2日 - 更新 2025年4月9日 - 現状 2025年4月9日 処理サイト : PDBe / 状態 : 公開
すべて表示 表示を減らす