登録情報 データベース : EMDB / ID : EMD-13343 構造の表示 ダウンロードとリンクタイトル Structure of capping protein bound to the barbed end of a cytoplasmic actin filament マップデータLocally filtered map with global B-factor 詳細 試料複合体 : Complex between capping protein and the barbed end of cytoplasmic actin filamentsタンパク質・ペプチド : Isoform 2 of F-actin-capping protein subunit betaタンパク質・ペプチド : F-actin-capping protein subunit alpha-1タンパク質・ペプチド : Actin, cytoplasmic 1タンパク質・ペプチド : Phalloidinリガンド : ADENOSINE-5'-DIPHOSPHATEリガンド : MAGNESIUM IONリガンド : PHOSPHATE ION 詳細機能・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
cytoskeletal calyx / regulation of protein kinase C signaling / Cell-extracellular matrix interactions / Adherens junctions interactions / Formation of the dystrophin-glycoprotein complex (DGC) / Advanced glycosylation endproduct receptor signaling / B-WICH complex positively regulates rRNA expression / RHOF GTPase cycle / Gap junction degradation / Formation of annular gap junctions ... cytoskeletal calyx / regulation of protein kinase C signaling / Cell-extracellular matrix interactions / Adherens junctions interactions / Formation of the dystrophin-glycoprotein complex (DGC) / Advanced glycosylation endproduct receptor signaling / B-WICH complex positively regulates rRNA expression / RHOF GTPase cycle / Gap junction degradation / Formation of annular gap junctions / RHOD GTPase cycle / MAP2K and MAPK activation / RHOF GTPase cycle / COPI-independent Golgi-to-ER retrograde traffic / EPHB-mediated forward signaling / Regulation of actin dynamics for phagocytic cup formation / RHO GTPases Activate WASPs and WAVEs / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / RHO GTPases activate IQGAPs / RHO GTPases Activate Formins / F-actin capping protein complex / WASH complex / COPI-mediated anterograde transport / sperm head-tail coupling apparatus / DNA Damage Recognition in GG-NER / UCH proteinases / sperm head / cellular response to cytochalasin B / VEGFA-VEGFR2 Pathway / Factors involved in megakaryocyte development and platelet production / regulation of transepithelial transport / morphogenesis of a polarized epithelium / structural constituent of postsynaptic actin cytoskeleton / protein localization to adherens junction / Clathrin-mediated endocytosis / dense body / postsynaptic actin cytoskeleton / barbed-end actin filament capping / Tat protein binding / cell junction assembly / cell projection organization / MHC class II antigen presentation / actin polymerization or depolymerization / muscle cell development / regulation of cell morphogenesis / adherens junction assembly / apical protein localization / tight junction / lamellipodium assembly / regulation of norepinephrine uptake / apical junction complex / transporter regulator activity / negative regulation of microtubule polymerization / nitric-oxide synthase binding / establishment or maintenance of cell polarity / cortical cytoskeleton / NuA4 histone acetyltransferase complex / brush border / kinesin binding / intercalated disc / asymmetric synapse / regulation of synaptic vesicle endocytosis / beta-tubulin binding / positive regulation of double-strand break repair via homologous recombination / regulation of protein localization to plasma membrane / cytoskeleton organization / axonogenesis / calyx of Held / hippocampal mossy fiber to CA3 synapse / nitric-oxide synthase regulator activity / actin filament / adherens junction / cell motility / 加水分解酵素; 酸無水物に作用; 酸無水物に作用・細胞または細胞小器官の運動に関与 / Schaffer collateral - CA1 synapse / cytoplasmic ribonucleoprotein granule / Z disc / neuron projection development / cell-cell junction / nucleosome / actin cytoskeleton / lamellipodium / actin binding / cytoskeleton / regulation of cell cycle / postsynaptic density / ribonucleoprotein complex / axon / focal adhesion / synapse / protein kinase binding / glutamatergic synapse / protein-containing complex / ATP hydrolysis activity / ATP binding / identical protein binding / nucleus / membrane / plasma membrane / cytosol 類似検索 - 分子機能 F-actin-capping protein subunit beta / F-actin capping protein, beta subunit, conserved site / F-actin-capping protein subunit beta, N-terminal domain / F-actin capping protein, beta subunit / F-actin capping protein beta subunit signature. / F-actin capping protein, alpha subunit, conserved site / F-actin capping protein alpha subunit signature 1. / F-actin capping protein alpha subunit signature 2. / F-actin-capping protein subunit alpha / F-actin-capping protein subunit alpha/beta ... F-actin-capping protein subunit beta / F-actin capping protein, beta subunit, conserved site / F-actin-capping protein subunit beta, N-terminal domain / F-actin capping protein, beta subunit / F-actin capping protein beta subunit signature. / F-actin capping protein, alpha subunit, conserved site / F-actin capping protein alpha subunit signature 1. / F-actin capping protein alpha subunit signature 2. / F-actin-capping protein subunit alpha / F-actin-capping protein subunit alpha/beta / F-actin-capping protein subunit alpha/beta, domain 2 / F-actin capping protein, alpha subunit, domain 1 / F-actin capping protein alpha subunit / Actins signature 1. / Actin, conserved site / Actins signature 2. / Actin/actin-like conserved site / Actins and actin-related proteins signature. / Actin / Actin family / Actin / ATPase, nucleotide binding domain 類似検索 - ドメイン・相同性 F-actin-capping protein subunit alpha-1 / F-actin-capping protein subunit beta / Actin, cytoplasmic 1 類似検索 - 構成要素生物種 Mus musculus (ハツカネズミ) / Bovine (ウシ) / synthetic construct (人工物) 手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 3.8 Å 詳細 データ登録者Funk J / Merino F / Schacks M / Rottner K / Raunser S / Bieling P 資金援助 ドイツ, 1件 詳細 詳細を隠すOrganization Grant number 国 Max Planck Society ドイツ
引用ジャーナル : Nat Commun / 年 : 2021タイトル : A barbed end interference mechanism reveals how capping protein promotes nucleation in branched actin networks.著者 : Johanna Funk / Felipe Merino / Matthias Schaks / Klemens Rottner / Stefan Raunser / Peter Bieling / 要旨 : Heterodimeric capping protein (CP/CapZ) is an essential factor for the assembly of branched actin networks, which push against cellular membranes to drive a large variety of cellular processes. Aside ... Heterodimeric capping protein (CP/CapZ) is an essential factor for the assembly of branched actin networks, which push against cellular membranes to drive a large variety of cellular processes. Aside from terminating filament growth, CP potentiates the nucleation of actin filaments by the Arp2/3 complex in branched actin networks through an unclear mechanism. Here, we combine structural biology with in vitro reconstitution to demonstrate that CP not only terminates filament elongation, but indirectly stimulates the activity of Arp2/3 activating nucleation promoting factors (NPFs) by preventing their association to filament barbed ends. Key to this function is one of CP's C-terminal "tentacle" extensions, which sterically masks the main interaction site of the terminal actin protomer. Deletion of the β tentacle only modestly impairs capping. However, in the context of a growing branched actin network, its removal potently inhibits nucleation promoting factors by tethering them to capped filament ends. End tethering of NPFs prevents their loading with actin monomers required for activation of the Arp2/3 complex and thus strongly inhibits branched network assembly both in cells and reconstituted motility assays. Our results mechanistically explain how CP couples two opposed processes-capping and nucleation-in branched actin network assembly. 履歴 登録 2021年8月9日 - ヘッダ(付随情報) 公開 2021年9月1日 - マップ公開 2021年9月1日 - 更新 2021年10月6日 - 現状 2021年10月6日 処理サイト : PDBe / 状態 : 公開
すべて表示 表示を減らす