登録情報 データベース : EMDB / ID : EMD-46794 ダウンロードとリンクタイトル Cryo-EM Structures of Full-Length Integrin alphaIIbbeta3 in Native Lipids Complexed with Tirofiban マップデータ 詳細 試料複合体 : full-length integrin alphaIIbbeta3タンパク質・ペプチド : Integrin alpha-IIbタンパク質・ペプチド : Integrin beta-3リガンド : CALCIUM IONリガンド : MAGNESIUM IONリガンド : TIROFIBANリガンド : water 詳細 キーワード complex / open headpiece / CELL ADHESION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
tube development / regulation of serotonin uptake / positive regulation of adenylate cyclase-inhibiting opioid receptor signaling pathway / alpha9-beta1 integrin-ADAM8 complex / regulation of trophoblast cell migration / integrin alphaIIb-beta3 complex / regulation of postsynaptic neurotransmitter receptor diffusion trapping / maintenance of postsynaptic specialization structure / alphav-beta3 integrin-vitronectin complex / regulation of extracellular matrix organization ... tube development / regulation of serotonin uptake / positive regulation of adenylate cyclase-inhibiting opioid receptor signaling pathway / alpha9-beta1 integrin-ADAM8 complex / regulation of trophoblast cell migration / integrin alphaIIb-beta3 complex / regulation of postsynaptic neurotransmitter receptor diffusion trapping / maintenance of postsynaptic specialization structure / alphav-beta3 integrin-vitronectin complex / regulation of extracellular matrix organization / positive regulation of glomerular mesangial cell proliferation / platelet alpha granule membrane / negative regulation of lipoprotein metabolic process / integrin alphav-beta3 complex / alphav-beta3 integrin-PKCalpha complex / fibrinogen binding / alphav-beta3 integrin-HMGB1 complex / blood coagulation, fibrin clot formation / glycinergic synapse / vascular endothelial growth factor receptor 2 binding / negative regulation of lipid transport / positive regulation of vascular endothelial growth factor signaling pathway / : / regulation of release of sequestered calcium ion into cytosol / Elastic fibre formation / mesodermal cell differentiation / cell-substrate junction assembly / alphav-beta3 integrin-IGF-1-IGF1R complex / platelet-derived growth factor receptor binding / angiogenesis involved in wound healing / filopodium membrane / extracellular matrix binding / positive regulation of fibroblast migration / positive regulation of vascular endothelial growth factor receptor signaling pathway / regulation of bone resorption / apolipoprotein A-I-mediated signaling pathway / positive regulation of cell adhesion mediated by integrin / positive regulation of leukocyte migration / apoptotic cell clearance / integrin complex / wound healing, spreading of epidermal cells / heterotypic cell-cell adhesion / smooth muscle cell migration / Molecules associated with elastic fibres / Mechanical load activates signaling by PIEZO1 and integrins in osteocytes / positive regulation of cell-matrix adhesion / negative chemotaxis / cell adhesion mediated by integrin / cellular response to insulin-like growth factor stimulus / Syndecan interactions / microvillus membrane / p130Cas linkage to MAPK signaling for integrins / positive regulation of smooth muscle cell migration / regulation of postsynaptic neurotransmitter receptor internalization / protein disulfide isomerase activity / cell-substrate adhesion / positive regulation of osteoblast proliferation / PECAM1 interactions / TGF-beta receptor signaling activates SMADs / GRB2:SOS provides linkage to MAPK signaling for Integrins / lamellipodium membrane / platelet-derived growth factor receptor signaling pathway / fibronectin binding / negative regulation of macrophage derived foam cell differentiation / negative regulation of lipid storage / ECM proteoglycans / Integrin cell surface interactions / positive regulation of bone resorption / positive regulation of T cell migration / negative regulation of endothelial cell apoptotic process / coreceptor activity / cell adhesion molecule binding / cellular response to platelet-derived growth factor stimulus / positive regulation of endothelial cell proliferation / positive regulation of substrate adhesion-dependent cell spreading / positive regulation of endothelial cell migration / Integrin signaling / embryo implantation / substrate adhesion-dependent cell spreading / protein kinase C binding / Turbulent (oscillatory, disturbed) flow shear stress activates signaling by PIEZO1 and integrins in endothelial cells / cell-matrix adhesion / Signal transduction by L1 / response to activity / integrin-mediated signaling pathway / regulation of actin cytoskeleton organization / positive regulation of smooth muscle cell proliferation / wound healing / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Signaling by high-kinase activity BRAF mutants / MAP2K and MAPK activation / cell-cell adhesion / platelet activation / VEGFA-VEGFR2 Pathway / platelet aggregation / ruffle membrane / cellular response to mechanical stimulus / positive regulation of fibroblast proliferation / positive regulation of angiogenesis / Signaling by RAF1 mutants 類似検索 - 分子機能 Integrin beta, epidermal growth factor-like domain 1 / Integrin beta epidermal growth factor like domain 1 / Integrin beta subunit, cytoplasmic domain / Integrin beta cytoplasmic domain / Integrin_b_cyt / Integrin beta tail domain / : / Integrin alpha Ig-like domain 3 / Integrin EGF domain / Integrin beta subunit, tail ... Integrin beta, epidermal growth factor-like domain 1 / Integrin beta epidermal growth factor like domain 1 / Integrin beta subunit, cytoplasmic domain / Integrin beta cytoplasmic domain / Integrin_b_cyt / Integrin beta tail domain / : / Integrin alpha Ig-like domain 3 / Integrin EGF domain / Integrin beta subunit, tail / Integrin beta tail domain superfamily / Integrin_B_tail / EGF-like domain, extracellular / EGF-like domain / Integrins beta chain EGF (I-EGF) domain profile. / Integrin alpha cytoplasmic region / Integrin beta subunit, VWA domain / Integrin beta subunit / Integrin beta N-terminal / Integrin beta chain VWA domain / Integrin plexin domain / Integrins beta chain EGF (I-EGF) domain signature. / Integrin beta subunits (N-terminal portion of extracellular region) / Integrin alpha-2 / Integrin alpha Ig-like domain 1 / Integrin alpha chain / Integrin alpha beta-propellor / Integrin alpha chain, C-terminal cytoplasmic region, conserved site / : / Integrin alpha Ig-like domain 2 / Integrins alpha chain signature. / FG-GAP repeat profile. / Integrin alpha (beta-propellor repeats). / FG-GAP repeat / FG-GAP repeat / Integrin domain superfamily / Integrin alpha, N-terminal / PSI domain / domain found in Plexins, Semaphorins and Integrins / von Willebrand factor A-like domain superfamily / EGF-like domain signature 1. / EGF-like domain signature 2. 類似検索 - ドメイン・相同性生物種 Homo sapiens (ヒト)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 3.9 Å 詳細 データ登録者Adair B / Xiong JP / Yeager M / Arnaout MA 資金援助 米国, 3件 詳細 詳細を隠すOrganization Grant number 国 National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI) HL141366 米国 National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK) DK088327 米国 National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) GM084545 米国
引用ジャーナル : Nat Commun / 年 : 2024タイトル : Platelet integrin αIIbβ3 plays a key role in a venous thrombogenesis mouse model.著者: Brian D Adair / Conroy O Field / José L Alonso / Jian-Ping Xiong / Shi-Xian Deng / Hyun Sook Ahn / Eivgeni Mashin / Clary B Clish / Johannes van Agthoven / Mark Yeager / Youzhong Guo / David ... 著者 : Brian D Adair / Conroy O Field / José L Alonso / Jian-Ping Xiong / Shi-Xian Deng / Hyun Sook Ahn / Eivgeni Mashin / Clary B Clish / Johannes van Agthoven / Mark Yeager / Youzhong Guo / David A Tess / Donald W Landry / Mortimer Poncz / M Amin Arnaout / 要旨 : Venous thrombosis (VT) is a common vascular disease associated with reduced survival and a high recurrence rate. VT is initiated by the accumulation of platelets and neutrophils at sites of ... Venous thrombosis (VT) is a common vascular disease associated with reduced survival and a high recurrence rate. VT is initiated by the accumulation of platelets and neutrophils at sites of endothelial cell activation. A role for platelet αIIbβ3 in VT is not established, a task complicated by the increased bleeding risk caused by partial agonists such as tirofiban. Here, we show that m-tirofiban, a modified version of tirofiban, does not agonize αIIbβ3 based on lack of neoepitope expression and the cryo-EM structure of m-tirofiban/full-length αIIbβ3 complex. m-tirofiban abolishes agonist-induced platelet aggregation while preserving clot retraction ex vivo and, unlike tirofiban, it suppresses venous thrombogenesis in a mouse model without increasing bleeding. These findings establish a key role for αIIbβ3 in VT initiation and suggest that m-tirofiban and compounds with a similar structurally-defined mechanism of action merit consideration as potential thromboprophylaxis agents in patients at high risk for VT and hemorrhage. 履歴 登録 2024年8月29日 - ヘッダ(付随情報) 公開 2024年10月16日 - マップ公開 2024年10月16日 - 更新 2024年11月13日 - 現状 2024年11月13日 処理サイト : RCSB / 状態 : 公開
すべて表示 表示を減らす