+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 6f0x | ||||||
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タイトル | Cryo-EM structure of TRIP13 in complex with ATP gamma S, p31comet, C-Mad2 and Cdc20 | ||||||
要素 |
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キーワード | CELL CYCLE / AAA+ ATPase / remodeller / spindle assembly checkpoint (SAC) / mitosis / chromosome segregation | ||||||
機能・相同性 | 機能・相同性情報 deactivation of mitotic spindle assembly checkpoint / metaphase/anaphase transition of cell cycle / mitotic spindle assembly checkpoint MAD1-MAD2 complex / 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 / 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 / regulation of meiotic nuclear division ...deactivation of mitotic spindle assembly checkpoint / metaphase/anaphase transition of cell cycle / mitotic spindle assembly checkpoint MAD1-MAD2 complex / 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 / 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 / regulation of meiotic nuclear division / establishment of centrosome localization / positive regulation of synapse maturation / Conversion from APC/C:Cdc20 to APC/C:Cdh1 in late anaphase / Inactivation of APC/C via direct inhibition of the APC/C complex / APC/C:Cdc20 mediated degradation of mitotic proteins / synaptonemal complex assembly / Phosphorylation of Emi1 / anaphase-promoting complex / regulation of meiotic cell cycle / anaphase-promoting complex-dependent catabolic process / positive regulation of synaptic plasticity / regulation of exit from mitosis / anaphase-promoting complex binding / nuclear pore nuclear basket / positive regulation of mitotic metaphase/anaphase transition / ubiquitin ligase activator activity / positive regulation of ubiquitin protein ligase activity / reciprocal meiotic recombination / oocyte maturation / female meiosis I / negative regulation of ubiquitin protein ligase activity / mitotic sister chromatid cohesion / oogenesis / mitotic spindle assembly checkpoint signaling / male meiosis I / establishment of mitotic spindle orientation / Regulation of APC/C activators between G1/S and early anaphase / mitotic sister chromatid segregation / negative regulation of mitotic cell cycle / spermatid development / mitotic spindle assembly / ubiquitin-like ligase-substrate adaptor activity / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / regulation of mitotic cell cycle / Resolution of Sister Chromatid Cohesion / APC/C:Cdc20 mediated degradation of Cyclin B / APC-Cdc20 mediated degradation of Nek2A / male germ cell nucleus / APC/C:Cdc20 mediated degradation of Securin / SCF-beta-TrCP mediated degradation of Emi1 / RHO GTPases Activate Formins / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / transcription coregulator activity / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / negative regulation of protein catabolic process / mitotic spindle / kinetochore / spindle pole / spindle / Separation of Sister Chromatids / double-strand break repair / Antigen processing: Ubiquitination & Proteasome degradation / chromosome / nervous system development / spermatogenesis / nuclear membrane / transcription by RNA polymerase II / cell differentiation / Ub-specific processing proteases / protein ubiquitination / cell division / centrosome / negative regulation of apoptotic process / 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 | ||||||
生物種 | Homo sapiens (ヒト) | ||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 4.6 Å | ||||||
データ登録者 | Alfieri, C. / Chang, L. / Barford, D. | ||||||
資金援助 | 英国, 1件
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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 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 6f0x.cif.gz | 464.1 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb6f0x.ent.gz | 384.6 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 6f0x.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
文書・要旨 | 6f0x_validation.pdf.gz | 1.2 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 6f0x_full_validation.pdf.gz | 1.3 MB | 表示 | |
XML形式データ | 6f0x_validation.xml.gz | 87.4 KB | 表示 | |
CIF形式データ | 6f0x_validation.cif.gz | 126.7 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/f0/6f0x ftp://data.pdbj.org/pub/pdb/validation_reports/f0/6f0x | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
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-要素
#1: タンパク質 | 分子量: 48606.664 Da / 分子数: 6 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: TRIP13, PCH2 / 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: Q15645 #2: タンパク質 | | 分子量: 31086.646 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: Q15013 #3: タンパク質 | | 分子量: 54796.508 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: CDC20 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: Q12834 #4: タンパク質 | | 分子量: 23533.883 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: MAD2L1, MAD2 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: Q13257 #5: 化合物 | ChemComp-AGS / |
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-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
-試料調製
構成要素 |
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分子量 | 値: 400 kDa/nm / 実験値: NO | ||||||||||||||||||||||||
由来(天然) |
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由来(組換発現) |
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緩衝液 | pH: 7.5 | ||||||||||||||||||||||||
試料 | 濃度: 0.3 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||||||||
急速凍結 | 凍結剤: ETHANE |
-電子顕微鏡撮影
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD |
撮影 | 電子線照射量: 40 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
-解析
ソフトウェア | 名称: PHENIX / バージョン: dev_2919: / 分類: 精密化 |
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EMソフトウェア | 名称: RELION / バージョン: 2.1-beta-1 / カテゴリ: 3次元再構成 |
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
対称性 | 点対称性: C1 (非対称) |
3次元再構成 | 解像度: 4.6 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 354157 / 対称性のタイプ: POINT |