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データを開く
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基本情報
| 登録情報 | データベース: EMDB / ID: EMD-2281 | |||||||||
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| タイトル | Three-dimensional reconstruction of intact human integrin alphaIIbbeta3 in a phospholipid bilayer nanodisc | |||||||||
マップデータ | Reconstruction of integrin alphaIIbbeta3 in lipid bilayer nanodisc | |||||||||
試料 |
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キーワード | integrin / alphaIIbbeta3 / nanodisc | |||||||||
| 機能・相同性 | 機能・相同性情報regulation of serotonin uptake / positive regulation of adenylate cyclase-inhibiting opioid receptor signaling pathway / tube development / alpha9-beta1 integrin-ADAM8 complex / regulation of trophoblast cell migration / integrin alphaIIb-beta3 complex / regulation of postsynaptic neurotransmitter receptor diffusion trapping / alphav-beta3 integrin-vitronectin complex / maintenance of postsynaptic specialization structure / regulation of extracellular matrix organization ...regulation of serotonin uptake / positive regulation of adenylate cyclase-inhibiting opioid receptor signaling pathway / tube development / alpha9-beta1 integrin-ADAM8 complex / regulation of trophoblast cell migration / integrin alphaIIb-beta3 complex / regulation of postsynaptic neurotransmitter receptor diffusion trapping / alphav-beta3 integrin-vitronectin complex / maintenance of postsynaptic specialization structure / regulation of extracellular matrix organization / platelet alpha granule membrane / positive regulation of glomerular mesangial cell proliferation / integrin alphav-beta3 complex / negative regulation of lipoprotein metabolic process / alphav-beta3 integrin-PKCalpha complex / fibrinogen binding / 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 / Elastic fibre formation / cell-substrate junction assembly / alphav-beta3 integrin-IGF-1-IGF1R complex / positive regulation of bone resorption / platelet-derived growth factor receptor binding / mesodermal cell differentiation / glycinergic synapse / extracellular matrix binding / filopodium membrane / regulation of release of sequestered calcium ion into cytosol / positive regulation of vascular endothelial growth factor receptor signaling pathway / positive regulation of cell adhesion mediated by integrin / apolipoprotein A-I-mediated signaling pathway / negative regulation of low-density lipoprotein particle clearance / regulation of bone resorption / angiogenesis involved in wound healing / positive regulation of leukocyte migration / wound healing, spreading of epidermal cells / apoptotic cell clearance / positive regulation of fibroblast migration / integrin complex / cell adhesion mediated by integrin / smooth muscle cell migration / Molecules associated with elastic fibres / heterotypic cell-cell adhesion / positive regulation of smooth muscle cell migration / negative chemotaxis / Mechanical load activates signaling by PIEZO1 and integrins in osteocytes / Syndecan interactions / positive regulation of cell-matrix adhesion / p130Cas linkage to MAPK signaling for integrins / regulation of postsynaptic neurotransmitter receptor internalization / cellular response to insulin-like growth factor stimulus / positive regulation of osteoblast proliferation / 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 / fibronectin binding / lamellipodium membrane / negative regulation of macrophage derived foam cell differentiation / negative regulation of lipid storage / blood coagulation, fibrin clot formation / ECM proteoglycans / Integrin cell surface interactions / negative regulation of endothelial cell apoptotic process / positive regulation of T cell migration / coreceptor activity / cellular response to platelet-derived growth factor stimulus / Integrin signaling / positive regulation of endothelial cell proliferation / positive regulation of substrate adhesion-dependent cell spreading / substrate adhesion-dependent cell spreading / embryo implantation / cell adhesion molecule binding / positive regulation of endothelial cell migration / positive regulation of smooth muscle cell proliferation / Turbulent (oscillatory, disturbed) flow shear stress activates signaling by PIEZO1 and integrins in endothelial cells / protein kinase C binding / cell-matrix adhesion / 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 / cell-cell adhesion / MAP2K and MAPK activation / platelet activation / VEGFA-VEGFR2 Pathway / platelet aggregation / integrin binding / cellular response to xenobiotic stimulus / positive regulation of fibroblast proliferation / ruffle membrane 類似検索 - 分子機能 | |||||||||
| 生物種 | Homo sapiens (ヒト) | |||||||||
| 手法 | 単粒子再構成法 / ネガティブ染色法 / 解像度: 20.5 Å | |||||||||
データ登録者 | Choi WS / Rice WJ / Stokes DL / Coller BS | |||||||||
引用 | ジャーナル: Blood / 年: 2013タイトル: Three-dimensional reconstruction of intact human integrin αIIbβ3: new implications for activation-dependent ligand binding. 著者: Won-Seok Choi / William J Rice / David L Stokes / Barry S Coller / ![]() 要旨: Integrin αIIbβ3 plays a central role in hemostasis and thrombosis. We provide the first 3-dimensional reconstruction of intact purified αIIbβ3 in a nanodisc lipid bilayer. Unlike previous models, ...Integrin αIIbβ3 plays a central role in hemostasis and thrombosis. We provide the first 3-dimensional reconstruction of intact purified αIIbβ3 in a nanodisc lipid bilayer. Unlike previous models, it shows that the ligand-binding head domain is on top, pointing away from the membrane. Moreover, unlike the crystal structure of the recombinant ectodomain, the lower legs are not parallel, straight, and adjacent. Rather, the αIIb lower leg is bent between the calf-1 and calf-2 domains and the β3 Integrin-Epidermal Growth Factor (I-EGF) 2 to 4 domains are freely coiled rather than in a cleft between the β3 headpiece and the αIIb lower leg. Our data indicate an important role for the region that links the distal calf-2 and β-tail domains to their respective transmembrane (TM) domains in transmitting the conformational changes in the TM domains associated with inside-out activation. | |||||||||
| 履歴 |
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構造の表示
| ムービー |
ムービービューア |
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| 構造ビューア | EMマップ: SurfView Molmil Jmol/JSmol |
| 添付画像 |
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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 | emd_2281.map.gz | 8.5 MB | EMDBマップデータ形式 | |
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| ヘッダ (付随情報) | emd-2281-v30.xml emd-2281.xml | 14.3 KB 14.3 KB | 表示 表示 | EMDBヘッダ |
| 画像 | EMD-2281.png | 45.9 KB | ||
| アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-2281 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-2281 | HTTPS FTP |
-関連構造データ
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リンク
| EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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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 | ダウンロード / ファイル: emd_2281.map.gz / 形式: CCP4 / 大きさ: 9.4 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| 注釈 | Reconstruction of integrin alphaIIbbeta3 in lipid bilayer nanodisc | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| ボクセルのサイズ | X=Y=Z: 2.96 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 密度 |
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| 対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
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試料の構成要素
-全体 : Integrin alphaIIbbeta3 in lipid bilayer nanodisc
| 全体 | 名称: Integrin alphaIIbbeta3 in lipid bilayer nanodisc |
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| 要素 |
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-超分子 #1000: Integrin alphaIIbbeta3 in lipid bilayer nanodisc
| 超分子 | 名称: Integrin alphaIIbbeta3 in lipid bilayer nanodisc / タイプ: sample / ID: 1000 / 詳細: The sample was monodisperse. / 集合状態: monomer / Number unique components: 2 |
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| 分子量 | 実験値: 230 KDa / 理論値: 230 KDa / 手法: SDS-Page |
-分子 #1: integrin alphaIIb
| 分子 | 名称: integrin alphaIIb / タイプ: protein_or_peptide / ID: 1 / Name.synonym: GPIIb 詳細: Native protein purified from platelet, heterodimer with integrin beta3 subunit コピー数: 1 / 集合状態: hetero dimer / 組換発現: No |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) / 別称: Human / 組織: Blood / 細胞: Platelet / 細胞中の位置: Plasma membrane |
| 分子量 | 実験値: 130 KDa / 理論値: 130 KDa |
| 配列 | UniProtKB: Integrin alpha-IIb |
-分子 #2: Integrin beta3
| 分子 | 名称: Integrin beta3 / タイプ: protein_or_peptide / ID: 2 / Name.synonym: GPIIIa 詳細: Native protein purified from platelet, heterodimer with integrin alphaIIb subunit コピー数: 1 / 集合状態: hetero dimer / 組換発現: No |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) / 別称: Human / 組織: Blood / 細胞: Platelet / 細胞中の位置: Plasma membrane |
| 分子量 | 実験値: 100 KDa / 理論値: 100 KDa |
| 配列 | UniProtKB: Integrin beta-3 |
-実験情報
-構造解析
| 手法 | ネガティブ染色法 |
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解析 | 単粒子再構成法 |
| 試料の集合状態 | particle |
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試料調製
| 濃度 | 0.025 mg/mL |
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| 緩衝液 | pH: 7.4 詳細: 150 mM NaCl, 10 mM HEPES, pH 7.4, 1 mM CaCl2 and 1 mM MgCl2 |
| 染色 | タイプ: NEGATIVE / 詳細: 2% uranyl acetate |
| グリッド | 詳細: 200 mesh copper grid with thin carbon support, glow discharged in H2/O2 atmosphere in plasma cleaner |
| 凍結 | 凍結剤: NONE / 装置: OTHER |
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電子顕微鏡法 #1
| Microscopy ID | 1 |
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| 顕微鏡 | FEI TECNAI F20 |
| アライメント法 | Legacy - 非点収差: Objective lens astigmatism was corrected at 250,000 times magnification |
| 詳細 | Low dose package used. CCD magnification is ~1.76 times film magnification |
| 日付 | 2010年2月1日 |
| 撮影 | カテゴリ: CCD フィルム・検出器のモデル: GENERIC TVIPS (4k x 4k) デジタル化 - サンプリング間隔: 15 µm / 実像数: 1500 / 平均電子線量: 13 e/Å2 / ビット/ピクセル: 16 |
| Tilt angle min | 0 |
| 電子線 | 加速電圧: 120 kV / 電子線源: FIELD EMISSION GUN |
| 電子光学系 | 倍率(補正後): 50592 / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.0 mm / 最大 デフォーカス(公称値): 1.2 µm / 最小 デフォーカス(公称値): 1.2 µm / 倍率(公称値): 29000 |
| 試料ステージ | 試料ホルダーモデル: SIDE ENTRY, EUCENTRIC / Tilt angle max: 50 |
| 実験機器 | ![]() モデル: Tecnai F20 / 画像提供: FEI Company |
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電子顕微鏡法 #2
| Microscopy ID | 2 |
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| 顕微鏡 | FEI TECNAI F20 |
| アライメント法 | Legacy - 非点収差: Objective lens astigmatism was corrected at 250,000 times magnification |
| 詳細 | Low dose package used. CCD magnification is ~1.76 times film magnification |
| 日付 | 2010年7月31日 |
| 撮影 | カテゴリ: CCD フィルム・検出器のモデル: GENERIC TVIPS (4k x 4k) デジタル化 - サンプリング間隔: 15 µm / 実像数: 1500 / 平均電子線量: 13 e/Å2 / ビット/ピクセル: 16 |
| Tilt angle min | 0 |
| 電子線 | 加速電圧: 200 kV / 電子線源: FIELD EMISSION GUN |
| 電子光学系 | 倍率(補正後): 88249 / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.0 mm / 最大 デフォーカス(公称値): 0.6 µm / 最小 デフォーカス(公称値): 0.6 µm / 倍率(公称値): 50000 |
| 試料ステージ | 試料ホルダーモデル: SIDE ENTRY, EUCENTRIC / Tilt angle max: 50 |
| 実験機器 | ![]() モデル: Tecnai F20 / 画像提供: FEI Company |
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画像解析
| 詳細 | 5 random conical tilt reconstructions were made from class averages, then aligned and merged to make an initial model for reference-based alignment. |
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| 最終 再構成 | 想定した対称性 - 点群: C1 (非対称) / アルゴリズム: OTHER / 解像度のタイプ: BY AUTHOR / 解像度: 20.5 Å / 解像度の算出法: FSC 0.5 CUT-OFF / ソフトウェア - 名称: spider 詳細: Initial model was made from aligning and averaging 5 models made by random conical tilt. 使用した粒子像数: 25008 |
| 最終 角度割当 | 詳細: SPIDER: theta 45 degrees, phi 45 degrees |
| 最終 2次元分類 | クラス数: 5 |
-原子モデル構築 1
| 初期モデル | PDB ID: Chain - #0 - Chain ID: A / Chain - #1 - Chain ID: B |
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| ソフトウェア | 名称: Chimera |
| 詳細 | The individual alphaIIb and beta3 domains were docked into the anchor graph of the EM map so as to maintain the sequence of domains and the distances between domains in the crystal structure. The locations were then optimized by maximizing the cross-correlation and the atomic inclusion of the domain within the EM map. |
| 精密化 | 空間: REAL / プロトコル: RIGID BODY FIT / 当てはまり具合の基準: Cross correlation |
| 得られたモデル | ![]() PDB-4cak: |
ムービー
コントローラー
万見について



キーワード
Homo sapiens (ヒト)
データ登録者
引用
UCSF Chimera




















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