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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: PDB / ID: 7tpp | ||||||
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| タイトル | Cryo-em structure of human prothrombin:prothrombinase at 4.1 Angstrom resolution | ||||||
要素 |
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キーワード | BLOOD CLOTTING / prothrombin prothrombinase | ||||||
| 機能・相同性 | 機能・相同性情報response to vitamin K / coagulation factor Xa / platelet alpha granule / Cargo concentration in the ER / COPII-coated ER to Golgi transport vesicle / Defective factor IX causes thrombophilia / Defective cofactor function of FVIIIa variant / Defective F9 variant does not activate FX / COPII-mediated vesicle transport / : ...response to vitamin K / coagulation factor Xa / platelet alpha granule / Cargo concentration in the ER / COPII-coated ER to Golgi transport vesicle / Defective factor IX causes thrombophilia / Defective cofactor function of FVIIIa variant / Defective F9 variant does not activate FX / COPII-mediated vesicle transport / : / blood circulation / : / thrombospondin receptor activity / thrombin / thrombin-activated receptor signaling pathway / Defective factor XII causes hereditary angioedema / negative regulation of astrocyte differentiation / regulation of blood coagulation / neutrophil-mediated killing of gram-negative bacterium / positive regulation of phospholipase C-activating G protein-coupled receptor signaling pathway / Defective F8 cleavage by thrombin / Platelet Aggregation (Plug Formation) / ligand-gated ion channel signaling pathway / positive regulation of collagen biosynthetic process / negative regulation of platelet activation / negative regulation of blood coagulation / negative regulation of fibrinolysis / blood coagulation, fibrin clot formation / positive regulation of blood coagulation / positive regulation of TOR signaling / Transport of gamma-carboxylated protein precursors from the endoplasmic reticulum to the Golgi apparatus / : / Gamma-carboxylation of protein precursors / Removal of aminoterminal propeptides from gamma-carboxylated proteins / regulation of cytosolic calcium ion concentration / fibrinolysis / : / negative regulation of proteolysis / endoplasmic reticulum-Golgi intermediate compartment membrane / negative regulation of cytokine production involved in inflammatory response / platelet alpha granule lumen / Regulation of Complement cascade / Peptide ligand-binding receptors / positive regulation of release of sequestered calcium ion into cytosol / acute-phase response / Cell surface interactions at the vascular wall / growth factor activity / positive regulation of receptor signaling pathway via JAK-STAT / Post-translational protein phosphorylation / lipopolysaccharide binding / platelet activation / phospholipid binding / response to wounding / positive regulation of protein localization to nucleus / Golgi lumen / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / positive regulation of reactive oxygen species metabolic process / blood coagulation / positive regulation of insulin secretion / Platelet degranulation / antimicrobial humoral immune response mediated by antimicrobial peptide / regulation of cell shape / heparin binding / extracellular vesicle / Thrombin signalling through proteinase activated receptors (PARs) / positive regulation of cell growth / blood microparticle / G alpha (q) signalling events / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / cell surface receptor signaling pathway / positive regulation of cell migration / endoplasmic reticulum lumen / receptor ligand activity / copper ion binding / serine-type endopeptidase activity / signaling receptor binding / external side of plasma membrane / calcium ion binding / positive regulation of cell population proliferation / proteolysis / : / extracellular exosome / extracellular region / membrane / plasma membrane 類似検索 - 分子機能 | ||||||
| 生物種 | Homo sapiens (ヒト) | ||||||
| 手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 4.1 Å | ||||||
データ登録者 | Di Cera, E. / Ruben, E.A. | ||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: Blood / 年: 2022タイトル: Cryo-EM structure of the prothrombin-prothrombinase complex. 著者: Eliza A Ruben / Brock Summers / Michael J Rau / James A J Fitzpatrick / Enrico Di Cera / ![]() 要旨: The intrinsic and extrinsic pathways of the coagulation cascade converge to a common step where the prothrombinase complex, comprising the enzyme factor Xa (fXa), the cofactor fVa, Ca2+ and ...The intrinsic and extrinsic pathways of the coagulation cascade converge to a common step where the prothrombinase complex, comprising the enzyme factor Xa (fXa), the cofactor fVa, Ca2+ and phospholipids, activates the zymogen prothrombin to the protease thrombin. The reaction entails cleavage at 2 sites, R271 and R320, generating the intermediates prethrombin 2 and meizothrombin, respectively. The molecular basis of these interactions that are central to hemostasis remains elusive. We solved 2 cryogenic electron microscopy (cryo-EM) structures of the fVa-fXa complex, 1 free on nanodiscs at 5.3-Å resolution and the other bound to prothrombin at near atomic 4.1-Å resolution. In the prothrombin-fVa-fXa complex, the Gla domains of fXa and prothrombin align on a plane with the C1 and C2 domains of fVa for interaction with membranes. Prothrombin and fXa emerge from this plane in curved conformations that bring their protease domains in contact with each other against the A2 domain of fVa. The 672ESTVMATRKMHDRLEPEDEE691 segment of the A2 domain closes on the protease domain of fXa like a lid to fix orientation of the active site. The 696YDYQNRL702 segment binds to prothrombin and establishes the pathway of activation by sequestering R271 against D697 and directing R320 toward the active site of fXa. The cryo-EM structure provides a molecular view of prothrombin activation along the meizothrombin pathway and suggests a mechanism for cleavage at the alternative R271 site. The findings advance our basic knowledge of a key step of coagulation and bear broad relevance to other interactions in the blood. | ||||||
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構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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ダウンロードとリンク
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ダウンロード
| PDBx/mmCIF形式 | 7tpp.cif.gz | 423.6 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb7tpp.ent.gz | 335.6 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 7tpp.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
| その他 | その他のダウンロード |
-検証レポート
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/tp/7tpp ftp://data.pdbj.org/pub/pdb/validation_reports/tp/7tpp | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 26060MC M: このデータのモデリングに利用したマップデータ 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 F&H 検索 |
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リンク
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集合体
| 登録構造単位 | ![]()
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要素
| #1: タンパク質 | 分子量: 65370.113 Da / 分子数: 1 / 断片: UNP residues 44-622 / 変異: S525A / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: F2 / 発現宿主: Mesocricetus auratus (ネズミ) / 参照: UniProt: P00734, thrombin |
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| #2: タンパク質 | 分子量: 15743.385 Da / 分子数: 1 / 断片: UNP residues 41-179 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: F10 / 発現宿主: Mesocricetus auratus (ネズミ) / 参照: UniProt: P00742 |
| #3: タンパク質 | 分子量: 81274.391 Da / 分子数: 1 / 断片: domains A1 and A2 (UNP residues 29-737) / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P12259 |
| #4: タンパク質 | 分子量: 75283.008 Da / 分子数: 1 / 断片: domains C1, C2, and A3 (UNP residues 1574-2224) / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P12259 |
| #5: タンパク質 | 分子量: 28534.596 Da / 分子数: 1 / 断片: UNP residues 235-488 / 変異: S379A / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: F10 / 発現宿主: Mesocricetus auratus (ネズミ) / 参照: UniProt: P00742 |
| Has protein modification | Y |
-実験情報
-実験
| 実験 | 手法: 電子顕微鏡法 |
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| EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
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| 由来(天然) |
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| 由来(組換発現) | 生物種: Mesocricetus auratus (ネズミ) | ||||||||||||||||||||||||
| 緩衝液 | pH: 7.4 / 詳細: 20mM Hepes, 150mM NaCl, 5mM CaCl2 | ||||||||||||||||||||||||
| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||||||||
| 急速凍結 | 凍結剤: ETHANE |
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電子顕微鏡撮影
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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| 顕微鏡 | モデル: FEI TITAN KRIOS |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 3000 nm / 最小 デフォーカス(公称値): 1000 nm |
| 撮影 | 電子線照射量: 50 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
| CTF補正 | タイプ: NONE |
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| 3次元再構成 | 解像度: 4.1 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 330317 / 対称性のタイプ: POINT |
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万見について




Homo sapiens (ヒト)
米国, 1件
引用

PDBj















Mesocricetus auratus (ネズミ)
FIELD EMISSION GUN