登録情報 データベース : EMDB / ID : EMD-35329 ダウンロードとリンクタイトル Structure of mammalian spectrin-actin junctional complex of membrane skeleton, Pointed-end segment, headpiece domain of dematin optimized マップデータ 詳細 試料複合体 : Spectrin-actin junctional complexタンパク質・ペプチド : Dematin actin binding proteinタンパク質・ペプチド : Actin, cytoplasmic 1リガンド : ADENOSINE-5'-DIPHOSPHATE 詳細 キーワード Macrocomplex / membrane skeleton / spectrin-actin junction / MEMBRANE 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
endoplasmic reticulum tubular network organization / negative regulation of protein targeting to membrane / 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 ... endoplasmic reticulum tubular network organization / negative regulation of protein targeting to membrane / 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 / Gap junction degradation / Formation of annular gap junctions / RHOF GTPase cycle / Clathrin-mediated endocytosis / Regulation of CDH1 Function / Formation of the dystrophin-glycoprotein complex (DGC) / spectrin-associated cytoskeleton / negative regulation of substrate adhesion-dependent cell spreading / smooth endoplasmic reticulum calcium ion homeostasis / platelet dense tubular network membrane / regulation of filopodium assembly / cell projection membrane / negative regulation of focal adhesion assembly / cellular response to cytochalasin B / regulation of transepithelial transport / morphogenesis of a polarized epithelium / structural constituent of postsynaptic actin cytoskeleton / protein localization to adherens junction / dense body / Tat protein binding / regulation of lamellipodium assembly / postsynaptic actin cytoskeleton / actin filament capping / adherens junction assembly / apical protein localization / positive regulation of fibroblast migration / RHO GTPases activate IQGAPs / RHO GTPases Activate Formins / tight junction / apical junction complex / spectrin binding / positive regulation of wound healing / regulation of norepinephrine uptake / transporter regulator activity / NuA4 histone acetyltransferase complex / smooth endoplasmic reticulum / establishment or maintenance of cell polarity / cortical cytoskeleton / nitric-oxide synthase binding / brush border / regulation of synaptic vesicle endocytosis / kinesin binding / regulation of protein localization to plasma membrane / positive regulation of double-strand break repair via homologous recombination / erythrocyte development / axonogenesis / cellular response to cAMP / calyx of Held / 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 / nucleosome / regulation of cell shape / lamellipodium / actin cytoskeleton / actin binding / actin cytoskeleton organization / protein-containing complex assembly / cytoplasmic vesicle / cytoskeleton / regulation of cell cycle / postsynaptic density / ribonucleoprotein complex / signaling receptor binding / axon / focal adhesion / synapse / protein kinase binding / perinuclear region of cytoplasm / glutamatergic synapse / ATP hydrolysis activity / protein-containing complex / ATP binding / membrane / identical protein binding / nucleus / plasma membrane / cytoplasm / cytosol 類似検索 - 分子機能 Putative adherens-junction anchoring domain / : / Putative adherens-junction anchoring region of AbLIM / Villin headpiece / Villin headpiece domain superfamily / Villin headpiece domain / Headpiece (HP) domain profile. / Villin headpiece domain / Actins signature 1. / Actin, conserved site ... Putative adherens-junction anchoring domain / : / Putative adherens-junction anchoring region of AbLIM / Villin headpiece / Villin headpiece domain superfamily / Villin headpiece domain / Headpiece (HP) domain profile. / Villin headpiece 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 / ATPase, nucleotide binding domain 類似検索 - ドメイン・相同性生物種 Sus scrofa (ブタ)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Li N / Chen S / Gao N 資金援助 中国, 1件 詳細 詳細を隠すOrganization Grant number 国 National Science Foundation (NSF, China) 中国
引用ジャーナル : Cell / 年 : 2023タイトル : Structural basis of membrane skeleton organization in red blood cells.著者 : Ningning Li / Siyi Chen / Kui Xu / Meng-Ting He / Meng-Qiu Dong / Qiangfeng Cliff Zhang / Ning Gao / 要旨 : The spectrin-based membrane skeleton is a ubiquitous membrane-associated two-dimensional cytoskeleton underneath the lipid membrane of metazoan cells. Mutations of skeleton proteins impair the ... The spectrin-based membrane skeleton is a ubiquitous membrane-associated two-dimensional cytoskeleton underneath the lipid membrane of metazoan cells. Mutations of skeleton proteins impair the mechanical strength and functions of the membrane, leading to several different types of human diseases. Here, we report the cryo-EM structures of the native spectrin-actin junctional complex (from porcine erythrocytes), which is a specialized short F-actin acting as the central organizational unit of the membrane skeleton. While an α-/β-adducin hetero-tetramer binds to the barbed end of F-actin as a flexible cap, tropomodulin and SH3BGRL2 together create an absolute cap at the pointed end. The junctional complex is strengthened by ring-like structures of dematin in the middle actin layers and by patterned periodic interactions with tropomyosin over its entire length. This work serves as a structural framework for understanding the assembly and dynamics of membrane skeleton and offers insights into mechanisms of various ubiquitous F-actin-binding factors in other F-actin systems. 履歴 登録 2023年2月9日 - ヘッダ(付随情報) 公開 2023年4月26日 - マップ公開 2023年4月26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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