+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 5nd2 | ||||||||||||||||||||||||||||||||||||||||||
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タイトル | Microtubule-bound MKLP2 motor domain in the presence of ADP | ||||||||||||||||||||||||||||||||||||||||||
要素 |
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キーワード | MOTOR PROTEIN / Kinesin Mitosis Microtubules | ||||||||||||||||||||||||||||||||||||||||||
機能・相同性 | 機能・相同性情報 Mitotic Telophase/Cytokinesis / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Cilium Assembly / Intraflagellar transport / Carboxyterminal post-translational modifications of tubulin / Sealing of the nuclear envelope (NE) by ESCRT-III / Kinesins / Resolution of Sister Chromatid Cohesion / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation ...Mitotic Telophase/Cytokinesis / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Cilium Assembly / Intraflagellar transport / Carboxyterminal post-translational modifications of tubulin / Sealing of the nuclear envelope (NE) by ESCRT-III / Kinesins / Resolution of Sister Chromatid Cohesion / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / COPI-dependent Golgi-to-ER retrograde traffic / COPI-independent Golgi-to-ER retrograde traffic / COPI-mediated anterograde transport / RHO GTPases activate IQGAPs / RHO GTPases Activate Formins / Kinesins / MHC class II antigen presentation / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / Aggrephagy / COPI-dependent Golgi-to-ER retrograde traffic / The role of GTSE1 in G2/M progression after G2 checkpoint / Separation of Sister Chromatids / Loss of Nlp from mitotic centrosomes / Recruitment of mitotic centrosome proteins and complexes / Loss of proteins required for interphase microtubule organization from the centrosome / Anchoring of the basal body to the plasma membrane / AURKA Activation by TPX2 / Recruitment of NuMA to mitotic centrosomes / midbody abscission / Regulation of PLK1 Activity at G2/M Transition / Hedgehog 'off' state / MHC class II antigen presentation / microtubule bundle formation / positive regulation of axon guidance / microtubule motor activity / kinesin complex / intercellular bridge / microtubule-based movement / microtubule-based process / mitotic cytokinesis / regulation of cytokinesis / structural constituent of cytoskeleton / microtubule cytoskeleton organization / spindle / microtubule cytoskeleton / protein transport / mitotic cell cycle / nervous system development / midbody / microtubule binding / 加水分解酵素; 酸無水物に作用; GTPに作用・細胞または細胞小器官の運動に関与 / microtubule / hydrolase activity / protein heterodimerization activity / GTPase activity / GTP binding / protein kinase binding / Golgi apparatus / ATP hydrolysis activity / nucleoplasm / ATP binding / nucleus / metal ion binding / cytosol / cytoplasm 類似検索 - 分子機能 | ||||||||||||||||||||||||||||||||||||||||||
生物種 | Mus musculus (ハツカネズミ) Bos taurus (ウシ) | ||||||||||||||||||||||||||||||||||||||||||
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: 5.8 Å | ||||||||||||||||||||||||||||||||||||||||||
データ登録者 | Atherton, J. / Yu, I.M. / Cook, A. / Muretta, J.M. / Joseph, A.P. / Major, J. / Sourigues, Y. / Clause, J. / Topf, M. / Rosenfeld, S.S. ...Atherton, J. / Yu, I.M. / Cook, A. / Muretta, J.M. / Joseph, A.P. / Major, J. / Sourigues, Y. / Clause, J. / Topf, M. / Rosenfeld, S.S. / Houdusse, A. / Moores, C.A. | ||||||||||||||||||||||||||||||||||||||||||
資金援助 | 英国, 13件
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引用 | ジャーナル: Elife / 年: 2017 タイトル: The divergent mitotic kinesin MKLP2 exhibits atypical structure and mechanochemistry. 著者: Joseph Atherton / I-Mei Yu / Alexander Cook / Joseph M Muretta / Agnel Joseph / Jennifer Major / Yannick Sourigues / Jeffrey Clause / Maya Topf / Steven S Rosenfeld / Anne Houdusse / Carolyn A Moores / 要旨: MKLP2, a kinesin-6, has critical roles during the metaphase-anaphase transition and cytokinesis. Its motor domain contains conserved nucleotide binding motifs, but is divergent in sequence (~35% ...MKLP2, a kinesin-6, has critical roles during the metaphase-anaphase transition and cytokinesis. Its motor domain contains conserved nucleotide binding motifs, but is divergent in sequence (~35% identity) and size (~40% larger) compared to other kinesins. Using cryo-electron microscopy and biophysical assays, we have undertaken a mechanochemical dissection of the microtubule-bound MKLP2 motor domain during its ATPase cycle, and show that many facets of its mechanism are distinct from other kinesins. While the MKLP2 neck-linker is directed towards the microtubule plus-end in an ATP-like state, it does not fully dock along the motor domain. Furthermore, the footprint of the MKLP2 motor domain on the MT surface is altered compared to motile kinesins, and enhanced by kinesin-6-specific sequences. The conformation of the highly extended loop6 insertion characteristic of kinesin-6s is nucleotide-independent and does not contact the MT surface. Our results emphasize the role of family-specific insertions in modulating kinesin motor function. | ||||||||||||||||||||||||||||||||||||||||||
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 | 5nd2.cif.gz | 929.8 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb5nd2.ent.gz | 766.8 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 5nd2.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 | 5nd2_validation.pdf.gz | 1.2 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 5nd2_full_validation.pdf.gz | 1.4 MB | 表示 | |
XML形式データ | 5nd2_validation.xml.gz | 146.5 KB | 表示 | |
CIF形式データ | 5nd2_validation.cif.gz | 205.8 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/nd/5nd2 ftp://data.pdbj.org/pub/pdb/validation_reports/nd/5nd2 | 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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1 |
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モデル数 | 5 |
-要素
-タンパク質 , 3種, 3分子 CAB
#1: タンパク質 | 分子量: 56021.332 Da / 分子数: 1 / 由来タイプ: 組換発現 / 詳細: MKLP2 25-520 with bound ADP / 由来: (組換発現) Mus musculus (ハツカネズミ) / 遺伝子: Kif20a, Rab6kifl / 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: P97329 |
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#2: タンパク質 | 分子量: 50107.238 Da / 分子数: 1 / 由来タイプ: 天然 / 詳細: Alpha-tubulin / 由来: (天然) Bos taurus (ウシ) / Plasmid details: Cytoskeleton Inc / 参照: UniProt: F2Z4C1, UniProt: P81947*PLUS |
#3: タンパク質 | 分子量: 49907.770 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Bos taurus (ウシ) / Plasmid details: Cytoskeleton Inc / 参照: UniProt: Q6B856 |
-非ポリマー , 5種, 6分子
#4: 化合物 | ChemComp-ADP / | ||||||
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#5: 化合物 | #6: 化合物 | ChemComp-GTP / | #7: 化合物 | ChemComp-GDP / | #8: 化合物 | ChemComp-TA1 / | |
-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: FILAMENT / 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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由来(天然) |
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由来(組換発現) | 生物種: Escherichia coli (大腸菌) | ||||||||||||||||||||||||||||
緩衝液 | pH: 6.8 | ||||||||||||||||||||||||||||
試料 | 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: Tecnai Polara / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI POLARA 300 |
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: 25 e/Å2 / 検出モード: INTEGRATING フィルム・検出器のモデル: DIRECT ELECTRON DE-20 (5k x 3k) |
-解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3次元再構成 | 解像度: 5.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 9842 詳細: Gold-standard FSCtrue using noise substitution test (Chen et al., 2014) 対称性のタイプ: POINT |