登録情報 データベース : EMDB / ID : EMD-17558 ダウンロードとリンクタイトル Cryo-EM structure of cortactin stabilized Arp2/3-complex nucleated actin branches マップデータ 詳細 試料複合体 : Cortactin stabilizes Arp2/3-complex nucleated actin branches with daughter filament capped複合体 : Human Arp2/3 C1BC5L complex複合体 : Porcine actin, cytoplasmic 1複合体 : Mouse cortactin複合体 : Mouse capping protein複合体 : Phalloidinリガンド : x 2種 詳細 キーワード Complex / CONTRACTILE 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
cytoskeletal calyx / tubulobulbar complex / meiotic chromosome movement towards spindle pole / cytosolic transport / growth cone leading edge / lamellipodium organization / Advanced glycosylation endproduct receptor signaling / RHOF GTPase cycle / spindle localization / meiotic cytokinesis ... cytoskeletal calyx / tubulobulbar complex / meiotic chromosome movement towards spindle pole / cytosolic transport / growth cone leading edge / lamellipodium organization / Advanced glycosylation endproduct receptor signaling / RHOF GTPase cycle / spindle localization / meiotic cytokinesis / site of polarized growth / : / actin polymerization-dependent cell motility / Regulation of actin dynamics for phagocytic cup formation / EPHB-mediated forward signaling / Adherens junctions interactions / VEGFA-VEGFR2 Pathway / Cell-extracellular matrix interactions / RHO GTPases Activate WASPs and WAVEs / MAP2K and MAPK activation / Formation of the canonical BAF (cBAF) complex / Formation of the polybromo-BAF (pBAF) complex / Formation of the embryonic stem cell BAF (esBAF) complex / Formation of the non-canonical BAF (ncBAF) complex / UCH proteinases / muscle cell projection membrane / negative regulation of filopodium assembly / Gap junction degradation / Formation of annular gap junctions / RHOF GTPase cycle / COPI-independent Golgi-to-ER retrograde traffic / Clathrin-mediated endocytosis / Regulation of CDH1 Function / Formation of the dystrophin-glycoprotein complex (DGC) / asymmetric cell division / Arp2/3 protein complex / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / actin nucleation / Arp2/3 complex-mediated actin nucleation / COPI-mediated anterograde transport / Arp2/3 complex binding / mitotic spindle midzone / F-actin capping protein complex / WASH complex / regulation of cell projection assembly / actin cap / sperm head / modification of postsynaptic actin cytoskeleton / regulation of mitophagy / profilin binding / Factors involved in megakaryocyte development and platelet production / modification of postsynaptic structure / cellular response to cytochalasin B / regulation of actin filament polymerization / positive regulation of smooth muscle contraction / substrate-dependent cell migration, cell extension / regulation of transepithelial transport / focal adhesion assembly / morphogenesis of a polarized epithelium / structural constituent of postsynaptic actin cytoskeleton / cell junction assembly / positive regulation of chemotaxis / protein localization to adherens junction / MHC class II antigen presentation / dense body / barbed-end actin filament capping / muscle cell development / Tat protein binding / regulation of lamellipodium assembly / actin polymerization or depolymerization / postsynaptic actin cytoskeleton / proline-rich region binding / podosome / regulation of cell morphogenesis / adherens junction assembly / apical protein localization / cell projection organization / dendritic spine maintenance / RHO GTPases activate IQGAPs / RHO GTPases Activate Formins / regulation of axon extension / tight junction / lamellipodium assembly / apical junction complex / cortical actin cytoskeleton / negative regulation of microtubule polymerization / regulation of norepinephrine uptake / transporter regulator activity / NuA4 histone acetyltransferase complex / filamentous actin / positive regulation of actin filament polymerization / establishment or maintenance of cell polarity / cortical cytoskeleton / nitric-oxide synthase binding / brush border / intercalated disc / cilium assembly / sperm head-tail coupling apparatus / RHO GTPases Activate WASPs and WAVEs / regulation of synaptic vesicle endocytosis 類似検索 - 分子機能 Hs1/Cortactin / Repeat in HS1/Cortactin / Cortactin repeat profile. / Cortactin, SH3 domain / Actin-related protein 2/3 complex subunit 5 / Actin-related protein 2/3 complex subunit 2 / Actin-related protein 2/3 complex subunit 3 / Actin-related protein 2/3 complex subunit 4 / Actin-related protein 2/3 complex subunit 1 / Arp2/3 complex subunit 2/4 ... Hs1/Cortactin / Repeat in HS1/Cortactin / Cortactin repeat profile. / Cortactin, SH3 domain / Actin-related protein 2/3 complex subunit 5 / Actin-related protein 2/3 complex subunit 2 / Actin-related protein 2/3 complex subunit 3 / Actin-related protein 2/3 complex subunit 4 / Actin-related protein 2/3 complex subunit 1 / Arp2/3 complex subunit 2/4 / Actin-related protein 2/3 complex subunit 5 superfamily / Actin-related protein 2/3 complex subunit 3 superfamily / Arp2/3 complex, 34 kD subunit p34-Arc / ARP2/3 complex ARPC3 (21 kDa) subunit / ARP2/3 complex 16 kDa subunit (p16-Arc) / ARP2/3 complex 20 kDa subunit (ARPC4) / 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 / Variant SH3 domain / Actins signature 1. / Actin, conserved site / Actins signature 2. / Actin/actin-like conserved site / Actins and actin-related proteins signature. / Actin / Actin family / Actin / Src homology 3 domains / SH3-like domain superfamily / Src homology 3 (SH3) domain profile. / SH3 domain / ATPase, nucleotide binding domain / WD domain, G-beta repeat / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily 類似検索 - ドメイン・相同性 Actin-related protein 2/3 complex subunit 1B / Actin-related protein 2/3 complex subunit 2 / Actin-related protein 2/3 complex subunit 3 / F-actin-capping protein subunit alpha-1 / F-actin-capping protein subunit beta / Actin-related protein 2/3 complex subunit 4 / Actin-related protein 3 / Actin-related protein 2 / Src substrate cortactin / Actin, cytoplasmic 1 / Actin-related protein 2/3 complex subunit 5-like protein 類似検索 - 構成要素生物種 Homo sapiens (ヒト) / Sus scrofa (ブタ) / Mus musculus (ハツカネズミ) / Amanita phalloides (タマゴテングタケ)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 3.3 Å 詳細 データ登録者Liu T / Moores CA 資金援助 European Union, 1件 詳細 詳細を隠すOrganization Grant number 国 European Research Council (ERC) 810207 European Union
引用ジャーナル : Nat Struct Mol Biol / 年 : 2024タイトル : Cortactin stabilizes actin branches by bridging activated Arp2/3 to its nucleated actin filament.著者 : Tianyang Liu / Luyan Cao / Miroslav Mladenov / Antoine Jegou / Michael Way / Carolyn A Moores / 要旨 : Regulation of the assembly and turnover of branched actin filament networks nucleated by the Arp2/3 complex is essential during many cellular processes, including cell migration and membrane ... Regulation of the assembly and turnover of branched actin filament networks nucleated by the Arp2/3 complex is essential during many cellular processes, including cell migration and membrane trafficking. Cortactin is important for actin branch stabilization, but the mechanism by which this occurs is unclear. Given this, we determined the structure of vertebrate cortactin-stabilized Arp2/3 actin branches using cryogenic electron microscopy. We find that cortactin interacts with the new daughter filament nucleated by the Arp2/3 complex at the branch site, rather than the initial mother actin filament. Cortactin preferentially binds activated Arp3. It also stabilizes the F-actin-like interface of activated Arp3 with the first actin subunit of the new filament, and its central repeats extend along successive daughter-filament subunits. The preference of cortactin for activated Arp3 explains its retention at the actin branch and accounts for its synergy with other nucleation-promoting factors in regulating branched actin network dynamics. 履歴 登録 2023年6月5日 - ヘッダ(付随情報) 公開 2024年1月3日 - マップ公開 2024年1月3日 - 更新 2024年5月29日 - 現状 2024年5月29日 処理サイト : PDBe / 状態 : 公開
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