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基本情報
登録情報 | ![]() | ||||||||||||
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タイトル | Cryo-EM structures of full-length integrin alphaIIbbeta3 in native lipids complexed with modified tirofiban | ||||||||||||
![]() | dynamic mask was used in refinement | ||||||||||||
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![]() | complex / open headpiece / CELL ADHESION | ||||||||||||
機能・相同性 | ![]() 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 / integrin alphav-beta3 complex / negative regulation of lipoprotein metabolic process / alphav-beta3 integrin-PKCalpha complex / fibrinogen binding / blood coagulation, fibrin clot formation / alphav-beta3 integrin-HMGB1 complex / 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 / glycinergic synapse / cell-substrate junction assembly / alphav-beta3 integrin-IGF-1-IGF1R complex / platelet-derived growth factor receptor binding / positive regulation of bone resorption / filopodium membrane / extracellular matrix binding / negative regulation of low-density lipoprotein particle clearance / angiogenesis involved in wound healing / 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 / positive regulation of fibroblast migration / heterotypic cell-cell adhesion / positive regulation of smooth muscle cell migration / 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 / Syndecan interactions / cellular response to insulin-like growth factor stimulus / p130Cas linkage to MAPK signaling for integrins / positive regulation of osteoblast proliferation / regulation of postsynaptic neurotransmitter receptor internalization / protein disulfide isomerase activity / microvillus membrane / cell-substrate adhesion / platelet-derived growth factor receptor signaling pathway / PECAM1 interactions / GRB2:SOS provides linkage to MAPK signaling for Integrins / TGF-beta receptor signaling activates SMADs / lamellipodium membrane / fibronectin binding / negative regulation of macrophage derived foam cell differentiation / negative regulation of lipid storage / ECM proteoglycans / Integrin cell surface interactions / 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 / Integrin signaling / positive regulation of substrate adhesion-dependent cell spreading / positive regulation of smooth muscle cell proliferation / embryo implantation / positive regulation of endothelial cell migration / substrate adhesion-dependent cell spreading / protein kinase C binding / cell-matrix adhesion / Turbulent (oscillatory, disturbed) flow shear stress activates signaling by PIEZO1 and integrins in endothelial cells / response to activity / Signal transduction by L1 / integrin-mediated signaling pathway / regulation of actin cytoskeleton organization / wound healing / cellular response to mechanical stimulus / Signaling by high-kinase activity BRAF mutants / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / MAP2K and MAPK activation / cell-cell adhesion / platelet activation / platelet aggregation / VEGFA-VEGFR2 Pathway / ruffle membrane / integrin binding / cellular response to xenobiotic stimulus / positive regulation of angiogenesis 類似検索 - 分子機能 | ||||||||||||
生物種 | ![]() | ||||||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 4.1 Å | ||||||||||||
![]() | Adair B / Xiong JP / Yeager M / Arnaout MA | ||||||||||||
資金援助 | ![]()
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![]() | ![]() 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 |
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構造の表示
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ダウンロードとリンク
-EMDBアーカイブ
マップデータ | ![]() | 51.4 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 22.7 KB 22.7 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() ![]() | 9.9 KB 9.9 KB | 表示 表示 | ![]() |
画像 | ![]() | 73.6 KB | ||
Filedesc metadata | ![]() | 7.6 KB | ||
その他 | ![]() ![]() ![]() | 51.4 MB 95.6 MB 95.6 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 819.5 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 819.1 KB | 表示 | |
XML形式データ | ![]() | 17.9 KB | 表示 | |
CIF形式データ | ![]() | 23.2 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 9deqMC ![]() 9derC M: このマップから作成された原子モデル C: 同じ文献を引用 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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リンク
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||
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注釈 | dynamic mask was used in refinement | ||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.08 Å | ||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
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試料の構成要素
-全体 : full length integrin alphaIIbbeta3
全体 | 名称: full length integrin alphaIIbbeta3 |
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要素 |
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-超分子 #1: full length integrin alphaIIbbeta3
超分子 | 名称: full length integrin alphaIIbbeta3 / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#2 |
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由来(天然) | 生物種: ![]() |
-分子 #1: Integrin alpha-IIb
分子 | 名称: Integrin alpha-IIb / タイプ: protein_or_peptide / ID: 1 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 110.106391 KDa |
配列 | 文字列: LNLDPVQLTF YAGPNGSQFG FSLDFHKDSH GRVAIVVGAP RTLGPSQEET GGVFLCPWRA EGGQCPSLLF DLRDETRNVG SQTLQTFKA RQGLGASVVS WSDVIVACAP WQHWNVLEKT EEAEKTPVGS CFLAQPESGR RAEYSPCRGN TLSRIYVEND F SWDKRYCE ...文字列: LNLDPVQLTF YAGPNGSQFG FSLDFHKDSH GRVAIVVGAP RTLGPSQEET GGVFLCPWRA EGGQCPSLLF DLRDETRNVG SQTLQTFKA RQGLGASVVS WSDVIVACAP WQHWNVLEKT EEAEKTPVGS CFLAQPESGR RAEYSPCRGN TLSRIYVEND F SWDKRYCE AGFSSVVTQA GELVLGAPGG YYFLGLLAQA PVADIFSSYR PGILLWHVSS QSLSFDSSNP EYFDGYWGYS VA VGEFDGD LNTTEYVVGA PTWSWTLGAV EILDSYYQRL HRLRGEQMAS YFGHSVAVTD VNGDGRHDLL VGAPLYMESR ADR KLAEVG RVYLFLQPRG PHALGAPSLL LTGTQLYGRF GSAIAPLGDL DRDGYNDIAV AAPYGGPSGR GQVLVFLGQS EGLR SRPSQ VLDSPFPTGS AFGFSLRGAV DIDDNGYPDL IVGAYGANQV AVYRAQPVVK ASVQLLVQDS LNPAVKSCVL PQTKT PVSC FNIQMCVGAT GHNIPQKLSL NAELQLDRQK PRQGRRVLLL GSQQAGTTLN LDLGGKHSPI CHTTMAFLRD EADFRD KLS PIVLSLNVSL PPTEAGMAPA VVLHGDTHVQ EQTRIVLDCG EDDVCVPQLQ LTASVTGSPL LVGADNVLEL QMDAANE GE GAYEAELAVH LPQGAHYMRA LSNVEGFERL ICNQKKENET RVVLCELGNP MKKNAQIGIA MLVSVGNLEE AGESVSFQ L QIRSKNSQNP NSKIVLLDVP VRAEAQVELR GNSFPASLVV AAEEGEREQN SLDSWGPKVE HTYELHNNGP GTVNGLHLS IHLPGQSQPS DLLYILDIQP QGGLQCFPQP PVNPLKVDWG LPIPSPSPIH PAHHKRDRRQ IFLPEPEQPS RLQDPVLVSC DSAPCTVVQ CDLQEMARGQ RAMVTVLAFL WLPSLYQRPL DQFVLQSHAW FNVSSLPYAV PPLSLPRGEA QVWTQLLRAL E ERAIPIWW VLVGVLGGLL LLTILVLAMW KVGFFKRNRP PLEEDDEEGE UniProtKB: Integrin alpha-IIb |
-分子 #2: Integrin beta-3
分子 | 名称: Integrin beta-3 / タイプ: protein_or_peptide / ID: 2 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 84.4785 KDa |
配列 | 文字列: GPNICTTRGV SSCQQCLAVS PMCAWCSDEA LPLGSPRCDL KENLLKDNCA PESIEFPVSE ARVLEDRPLS DKGSGDSSQV TQVSPQRIA LRLRPDDSKN FSIQVRQVED YPVDIYYLMD LSYSMKDDLW SIQNLGTKLA TQMRKLTSNL RIGFGAFVDK P VSPYMYIS ...文字列: GPNICTTRGV SSCQQCLAVS PMCAWCSDEA LPLGSPRCDL KENLLKDNCA PESIEFPVSE ARVLEDRPLS DKGSGDSSQV TQVSPQRIA LRLRPDDSKN FSIQVRQVED YPVDIYYLMD LSYSMKDDLW SIQNLGTKLA TQMRKLTSNL RIGFGAFVDK P VSPYMYIS PPEALENPCY DMKTTCLPMF GYKHVLTLTD QVTRFNEEVK KQSVSRNRDA PEGGFDAIMQ ATVCDEKIGW RN DASHLLV FTTDAKTHIA LDGRLAGIVQ PNDGQCHVGS DNHYSASTTM DYPSLGLMTE KLSQKNINLI FAVTENVVNL YQN YSELIP GTTVGVLSMD SSNVLQLIVD AYGKIRSKVE LEVRDLPEEL SLSFNATCLN NEVIPGLKSC MGLKIGDTVS FSIE AKVRG CPQEKEKSFT IKPVGFKDSL IVQVTFDCDC ACQAQAEPNS HRCNNGNGTF ECGVCRCGPG WLGSQCECSE EDYRP SQQD ECSPREGQPV CSQRGECLCG QCVCHSSDFG KITGKYCECD DFSCVRYKGE MCSGHGQCSC GDCLCDSDWT GYYCNC TTR TDTCMSSNGL LCSGRGKCEC GSCVCIQPGS YGDTCEKCPT CPDACTFKKE CVECKKFDRG ALHDENTCNR YCRDEIE SV KELKDTGKDA VNCTYKNEDD CVVRFQYYED SSGKSILYVV EEPECPKGPD ILVVLLSVMG AILLIGLAAL LIWKLLIT I HDRKEFAKFE EERARAKWDT ANNPLYKEAT STFTNITYRG T UniProtKB: Integrin beta-3 |
-分子 #6: CALCIUM ION
分子 | 名称: CALCIUM ION / タイプ: ligand / ID: 6 / コピー数: 7 / 式: CA |
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分子量 | 理論値: 40.078 Da |
-分子 #7: 2-acetamido-2-deoxy-beta-D-glucopyranose
分子 | 名称: 2-acetamido-2-deoxy-beta-D-glucopyranose / タイプ: ligand / ID: 7 / コピー数: 5 / 式: NAG |
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分子量 | 理論値: 221.208 Da |
Chemical component information | ![]() ChemComp-NAG: |
-分子 #8: MAGNESIUM ION
分子 | 名称: MAGNESIUM ION / タイプ: ligand / ID: 8 / コピー数: 1 / 式: MG |
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分子量 | 理論値: 24.305 Da |
-分子 #9: N-(1,3-benzoxazole-2-carbonyl)-O-[4-(piperidin-4-yl)butyl]-L-tyrosine
分子 | 名称: N-(1,3-benzoxazole-2-carbonyl)-O-[4-(piperidin-4-yl)butyl]-L-tyrosine タイプ: ligand / ID: 9 / コピー数: 1 / 式: A1A5G |
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分子量 | 理論値: 465.541 Da |
-分子 #10: CHOLESTEROL
分子 | 名称: CHOLESTEROL / タイプ: ligand / ID: 10 / コピー数: 2 / 式: CLR |
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分子量 | 理論値: 386.654 Da |
Chemical component information | ![]() ChemComp-CLR: |
-分子 #11: water
分子 | 名称: water / タイプ: ligand / ID: 11 / コピー数: 5 / 式: HOH |
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分子量 | 理論値: 18.015 Da |
Chemical component information | ![]() ChemComp-HOH: |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | cell |
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試料調製
緩衝液 | pH: 7.4 / 詳細: TBS/1mM CaCl2 |
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凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 277 K / 装置: FEI VITROBOT MARK IV |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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特殊光学系 | エネルギーフィルター - 名称: GIF Quantum ER / エネルギーフィルター - スリット幅: 10 eV |
撮影 | フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 実像数: 11947 / 平均電子線量: 50.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 0.27 mm / 最大 デフォーカス(公称値): 2.5 µm / 最小 デフォーカス(公称値): 1.0 µm / 倍率(公称値): 81000 |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |