登録情報 データベース : EMDB / ID : EMD-34121 ダウンロードとリンクタイトル Cryo-EM structure of full-length Myosin Va in the autoinhibited state マップデータoverall_map 詳細 試料複合体 : Myosin Va and Calmodulin complexタンパク質・ペプチド : Unconventional myosin-Vaタンパク質・ペプチド : Calmodulin-1 詳細 キーワード intracellular trafficking / molecular motor / myosin / autoinhibition / MOTOR PROTEIN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
CaMK IV-mediated phosphorylation of CREB / Cam-PDE 1 activation / CREB1 phosphorylation through the activation of CaMKII/CaMKK/CaMKIV cascasde / Glycogen breakdown (glycogenolysis) / Activation of RAC1 downstream of NMDARs / Reduction of cytosolic Ca++ levels / Sodium/Calcium exchangers / Activation of Ca-permeable Kainate Receptor / Synthesis of IP3 and IP4 in the cytosol / CLEC7A (Dectin-1) induces NFAT activation ... CaMK IV-mediated phosphorylation of CREB / Cam-PDE 1 activation / CREB1 phosphorylation through the activation of CaMKII/CaMKK/CaMKIV cascasde / Glycogen breakdown (glycogenolysis) / Activation of RAC1 downstream of NMDARs / Reduction of cytosolic Ca++ levels / Sodium/Calcium exchangers / Activation of Ca-permeable Kainate Receptor / Synthesis of IP3 and IP4 in the cytosol / CLEC7A (Dectin-1) induces NFAT activation / RHO GTPases activate PAKs / Calmodulin induced events / Inactivation, recovery and regulation of the phototransduction cascade / Tetrahydrobiopterin (BH4) synthesis, recycling, salvage and regulation / eNOS activation / Ion transport by P-type ATPases / Calcineurin activates NFAT / Unblocking of NMDA receptors, glutamate binding and activation / Protein methylation / RAF activation / VEGFR2 mediated vascular permeability / vesicle transport along actin filament / RAS processing / post-Golgi vesicle-mediated transport / FCERI mediated Ca+2 mobilization / Ca2+ pathway / RHO GTPases activate IQGAPs / Extra-nuclear estrogen signaling / RAF/MAP kinase cascade / PKA activation / filopodium tip / Smooth Muscle Contraction / Platelet degranulation / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / Stimuli-sensing channels / Ion homeostasis / establishment of protein localization to mitochondrial membrane / type 3 metabotropic glutamate receptor binding / myosin complex / response to corticosterone / organelle localization by membrane tethering / negative regulation of ryanodine-sensitive calcium-release channel activity / mitochondrion-endoplasmic reticulum membrane tethering / autophagosome membrane docking / regulation of cardiac muscle cell action potential / nitric-oxide synthase binding / presynaptic endocytosis / calcineurin-mediated signaling / regulation of synaptic vesicle exocytosis / cytoskeletal motor activity / regulation of ryanodine-sensitive calcium-release channel activity / protein phosphatase activator activity / adenylate cyclase binding / catalytic complex / regulation of synaptic vesicle endocytosis / detection of calcium ion / postsynaptic cytosol / regulation of cardiac muscle contraction / calcium channel inhibitor activity / cellular response to interferon-beta / presynaptic cytosol / phosphatidylinositol 3-kinase binding / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / titin binding / sperm midpiece / voltage-gated potassium channel complex / ruffle / calcium channel complex / response to amphetamine / nitric-oxide synthase regulator activity / regulation of heart rate / adenylate cyclase activator activity / calyx of Held / protein serine/threonine kinase activator activity / sarcomere / regulation of cytokinesis / spindle microtubule / actin filament / positive regulation of receptor signaling pathway via JAK-STAT / mitochondrial membrane / recycling endosome / Schaffer collateral - CA1 synapse / cellular response to type II interferon / small GTPase binding / spindle pole / calcium-dependent protein binding / G2/M transition of mitotic cell cycle / synaptic vesicle membrane / late endosome / melanosome / peroxisome / protein transport / myelin sheath / actin binding / growth cone / transmembrane transporter binding / early endosome / lysosome / protein domain specific binding / centrosome 類似検索 - 分子機能 Myosin 5a, cargo-binding domain / Class V myosin, motor domain / Dilute domain / DIL domain / Dilute domain profile. / DIL / IQ calmodulin-binding motif / Myosin, N-terminal, SH3-like / Myosin N-terminal SH3-like domain profile. / Short calmodulin-binding motif containing conserved Ile and Gln residues. ... Myosin 5a, cargo-binding domain / Class V myosin, motor domain / Dilute domain / DIL domain / Dilute domain profile. / DIL / IQ calmodulin-binding motif / Myosin, N-terminal, SH3-like / Myosin N-terminal SH3-like domain profile. / Short calmodulin-binding motif containing conserved Ile and Gln residues. / IQ motif, EF-hand binding site / Myosin head, motor domain / Myosin head (motor domain) / Myosin motor domain profile. / Myosin. Large ATPases. / IQ motif profile. / Kinesin motor domain superfamily / : / EF-hand domain pair / EF-hand, calcium binding motif / EF-Hand 1, calcium-binding site / EF-hand calcium-binding domain. / EF-hand calcium-binding domain profile. / EF-hand domain / EF-hand domain pair / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性生物種 Mus musculus (ハツカネズミ)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 4.78 Å 詳細 データ登録者Niu F / Wei Z 資金援助 中国, 1件 詳細 詳細を隠すOrganization Grant number 国 National Natural Science Foundation of China (NSFC) 31971131, 31870757, 32170697, 31800643 中国
引用ジャーナル : Sci Adv / 年 : 2022タイトル : Autoinhibition and activation mechanisms revealed by the triangular-shaped structure of myosin Va.著者 : Fengfeng Niu / Yong Liu / Kang Sun / Shun Xu / Jiayuan Dong / Cong Yu / Kaige Yan / Zhiyi Wei / 要旨 : As the prototype of unconventional myosin motor family, myosin Va (MyoVa) transport cellular cargos along actin filaments in diverse cellular processes. The off-duty MyoVa adopts a closed and ... As the prototype of unconventional myosin motor family, myosin Va (MyoVa) transport cellular cargos along actin filaments in diverse cellular processes. The off-duty MyoVa adopts a closed and autoinhibited state, which can be relieved by cargo binding. The molecular mechanisms governing the autoinhibition and activation of MyoVa remain unclear. Here, we report the cryo-electron microscopy structure of the two full-length, closed MyoVa heavy chains in complex with 12 calmodulin light chains at 4.78-Å resolution. The MyoVa adopts a triangular structure with multiple intra- and interpolypeptide chain interactions in establishing the closed state with cargo binding and adenosine triphosphatase activity inhibited. Structural, biochemical, and cellular analyses uncover an asymmetric autoinhibition mechanism, in which the cargo-binding sites in the two MyoVa heavy chains are differently protected. Thus, specific and efficient MyoVa activation requires coincident binding of multiple cargo adaptors, revealing an intricate and elegant activity regulation of the motor in response to cargos. 履歴 登録 2022年8月19日 - ヘッダ(付随情報) 公開 2022年12月21日 - マップ公開 2022年12月21日 - 更新 2024年7月3日 - 現状 2024年7月3日 処理サイト : PDBj / 状態 : 公開
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