登録情報 データベース : PDB / ID : 6bjc 構造の表示 ダウンロードとリンクタイトル TPX2_mini decorated GMPCPP-microtubule 要素Targeting protein for Xklp2 Tubulin alpha-1B chain Tubulin beta chain 詳細キーワード CELL CYCLE / mitosis / GanGTP / nucleation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
activation of protein kinase activity / axon hillock / negative regulation of microtubule depolymerization / importin-alpha family protein binding / microtubule nucleation / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Resolution of Sister Chromatid Cohesion / Hedgehog 'off' state / Cilium Assembly / Intraflagellar transport ... activation of protein kinase activity / axon hillock / negative regulation of microtubule depolymerization / importin-alpha family protein binding / microtubule nucleation / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Resolution of Sister Chromatid Cohesion / Hedgehog 'off' state / Cilium Assembly / Intraflagellar transport / COPI-dependent Golgi-to-ER retrograde traffic / Mitotic Prometaphase / Carboxyterminal post-translational modifications of tubulin / RHOH GTPase cycle / EML4 and NUDC in mitotic spindle formation / Sealing of the nuclear envelope (NE) by ESCRT-III / Kinesins / PKR-mediated signaling / Separation of Sister Chromatids / The role of GTSE1 in G2/M progression after G2 checkpoint / Aggrephagy / RHO GTPases activate IQGAPs / RHO GTPases Activate Formins / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / MHC class II antigen presentation / Recruitment of NuMA to mitotic centrosomes / COPI-mediated anterograde transport / mitotic spindle assembly / intercellular bridge / regulation of mitotic spindle organization / AURKA Activation by TPX2 / protein serine/threonine kinase activator activity / structural constituent of cytoskeleton / microtubule cytoskeleton organization / spindle / neuron migration / spindle pole / mitotic spindle / mitotic cell cycle / microtubule cytoskeleton / molecular adaptor activity / 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 / Regulation of TP53 Activity through Phosphorylation / microtubule / cell division / GTPase activity / apoptotic process / protein kinase binding / GTP binding / nucleoplasm / metal ion binding / nucleus / cytoplasm / cytosol 類似検索 - 分子機能 TPX2 / Aurora-A binding / TPX2, C-terminal / TPX2 central domain / Targeting protein for Xklp2 (TPX2) domain / Aurora-A binding / Cell cycle regulated microtubule associated protein / Helix hairpin bin / Tubulin/FtsZ, C-terminal domain / Tubulin/FtsZ, GTPase domain ... TPX2 / Aurora-A binding / TPX2, C-terminal / TPX2 central domain / Targeting protein for Xklp2 (TPX2) domain / Aurora-A binding / Cell cycle regulated microtubule associated protein / Helix hairpin bin / Tubulin/FtsZ, C-terminal domain / Tubulin/FtsZ, GTPase domain / 60s Ribosomal Protein L30; Chain: A; / Alpha tubulin / Tubulin-beta mRNA autoregulation signal. / Beta tubulin, autoregulation binding site / Beta tubulin / Tubulin / Tubulin, C-terminal / Tubulin C-terminal domain / Tubulin, conserved site / Tubulin subunits alpha, beta, and gamma signature. / Tubulin/FtsZ family, C-terminal domain / Tubulin/FtsZ-like, C-terminal domain / Tubulin/FtsZ, C-terminal / Tubulin/FtsZ, 2-layer sandwich domain / Tubulin/FtsZ family, GTPase domain / Tubulin/FtsZ family, GTPase domain / Tubulin/FtsZ, GTPase domain / Tubulin/FtsZ, GTPase domain superfamily / Helix Hairpins / Rossmann fold / 2-Layer Sandwich / Orthogonal Bundle / 3-Layer(aba) Sandwich / Mainly Alpha / Alpha Beta 類似検索 - ドメイン・相同性 PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER / GUANOSINE-5'-TRIPHOSPHATE / Tubulin beta chain / Tubulin alpha-1B chain / Targeting protein for Xklp2 類似検索 - 構成要素生物種 Homo sapiens (ヒト)Sus scrofa (ブタ)手法 電子顕微鏡法 / らせん対称体再構成法 / クライオ電子顕微鏡法 / 解像度 : 3.3 Å 詳細データ登録者 Zhang, R. / Nogales, E. 資金援助 米国, 英国, 5件 詳細 詳細を隠す組織 認可番号 国 National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) GM051487 米国 Howard Hughes Medical Institute (HHMI) 米国 Cancer Research UK FC001163 英国 Medical Research Council (MRC, United Kingdom) FC001163 英国 Wellcome Trust FC001163 英国
引用ジャーナル : Elife / 年 : 2017タイトル : Structural insight into TPX2-stimulated microtubule assembly.著者 : Rui Zhang / Johanna Roostalu / Thomas Surrey / Eva Nogales / 要旨 : During mitosis and meiosis, microtubule (MT) assembly is locally upregulated by the chromatin-dependent Ran-GTP pathway. One of its key targets is the MT-associated spindle assembly factor TPX2. The ... During mitosis and meiosis, microtubule (MT) assembly is locally upregulated by the chromatin-dependent Ran-GTP pathway. One of its key targets is the MT-associated spindle assembly factor TPX2. The molecular mechanism of how TPX2 stimulates MT assembly remains unknown because structural information about the interaction of TPX2 with MTs is lacking. Here, we determine the cryo-electron microscopy structure of a central region of TPX2 bound to the MT surface. TPX2 uses two flexibly linked elements ('ridge' and 'wedge') in a novel interaction mode to simultaneously bind across longitudinal and lateral tubulin interfaces. These MT-interacting elements overlap with the binding site of importins on TPX2. Fluorescence microscopy-based in vitro reconstitution assays reveal that this interaction mode is critical for MT binding and facilitates MT nucleation. Together, our results suggest a molecular mechanism of how the Ran-GTP gradient can regulate TPX2-dependent MT formation. 履歴 登録 2017年11月5日 登録サイト : RCSB / 処理サイト : RCSB改定 1.0 2017年11月22日 Provider : repository / タイプ : Initial release改定 1.1 2018年10月3日 Group : Data collection / Other / Refinement description / カテゴリ : cell / refineItem : _cell.Z_PDB / _cell.length_a ... _cell.Z_PDB / _cell.length_a / _cell.length_b / _cell.length_c 改定 1.2 2019年11月20日 Group : Author supporting evidence / カテゴリ : pdbx_audit_support / Item : _pdbx_audit_support.funding_organization改定 1.3 2019年12月18日 Group : Author supporting evidence / Other / カテゴリ : atom_sites / cell / pdbx_audit_supportItem : _atom_sites.fract_transf_matrix[1][1] / _atom_sites.fract_transf_matrix[2][1] ... _atom_sites.fract_transf_matrix[1][1] / _atom_sites.fract_transf_matrix[2][1] / _atom_sites.fract_transf_matrix[2][2] / _atom_sites.fract_transf_matrix[3][2] / _atom_sites.fract_transf_matrix[3][3] / _cell.Z_PDB / _pdbx_audit_support.funding_organization 改定 1.4 2024年3月13日 Group : Data collection / Database references / Refinement descriptionカテゴリ : chem_comp_atom / chem_comp_bond ... chem_comp_atom / chem_comp_bond / database_2 / struct_ncs_dom_lim Item : _database_2.pdbx_DOI / _database_2.pdbx_database_accession ... _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ncs_dom_lim.beg_auth_comp_id / _struct_ncs_dom_lim.beg_label_asym_id / _struct_ncs_dom_lim.beg_label_comp_id / _struct_ncs_dom_lim.beg_label_seq_id / _struct_ncs_dom_lim.end_auth_comp_id / _struct_ncs_dom_lim.end_label_asym_id / _struct_ncs_dom_lim.end_label_comp_id / _struct_ncs_dom_lim.end_label_seq_id
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