- PDB-8fdg: Cryo-EM structure of coagulation factor V short -
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基本情報
登録情報
データベース: PDB / ID: 8fdg
タイトル
Cryo-EM structure of coagulation factor V short
要素
Coagulation factor V
キーワード
BLOOD CLOTTING
機能・相同性
機能・相同性情報
response to vitamin K / platelet alpha granule / Cargo concentration in the ER / COPII-mediated vesicle transport / blood circulation / COPII-coated ER to Golgi transport vesicle / Common Pathway of Fibrin Clot Formation / endoplasmic reticulum-Golgi intermediate compartment membrane / platelet alpha granule lumen / Post-translational protein phosphorylation ...response to vitamin K / platelet alpha granule / Cargo concentration in the ER / COPII-mediated vesicle transport / blood circulation / COPII-coated ER to Golgi transport vesicle / Common Pathway of Fibrin Clot Formation / endoplasmic reticulum-Golgi intermediate compartment membrane / platelet alpha granule lumen / Post-translational protein phosphorylation / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / blood coagulation / Platelet degranulation / extracellular vesicle / endoplasmic reticulum lumen / copper ion binding / extracellular space / extracellular region / membrane / plasma membrane 類似検索 - 分子機能
Coagulation factor 5/8-like / : / Coagulation factors 5/8 type C domain (FA58C) signature 2. / Multicopper oxidases, conserved site / Multicopper oxidases signature 1. / Coagulation factors 5/8 type C domain (FA58C) signature 1. / Coagulation factor 5/8 C-terminal domain, discoidin domain / Coagulation factors 5/8 type C domain (FA58C) profile. / F5/8 type C domain / Coagulation factor 5/8 C-terminal domain ...Coagulation factor 5/8-like / : / Coagulation factors 5/8 type C domain (FA58C) signature 2. / Multicopper oxidases, conserved site / Multicopper oxidases signature 1. / Coagulation factors 5/8 type C domain (FA58C) signature 1. / Coagulation factor 5/8 C-terminal domain, discoidin domain / Coagulation factors 5/8 type C domain (FA58C) profile. / F5/8 type C domain / Coagulation factor 5/8 C-terminal domain / Multicopper oxidase, N-terminal / Multicopper oxidase / Galactose-binding domain-like / Cupredoxins - blue copper proteins / Cupredoxin / Galactose-binding-like domain superfamily / Jelly Rolls / Immunoglobulin-like / Sandwich / Mainly Beta 類似検索 - ドメイン・相同性
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)
HL049413
米国
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)
HL139554
米国
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)
HL147821
米国
引用
ジャーナル: Blood / 年: 2023 タイトル: Cryo-EM structure of coagulation factor V short. 著者: Bassem M Mohammed / Leslie A Pelc / Michael J Rau / Enrico Di Cera / 要旨: Coagulation factor V (fV) is the precursor of activated fV (fVa), an essential component of the prothrombinase complex required for the rapid activation of prothrombin in the penultimate step of the ...Coagulation factor V (fV) is the precursor of activated fV (fVa), an essential component of the prothrombinase complex required for the rapid activation of prothrombin in the penultimate step of the coagulation cascade. In addition, fV regulates the tissue factor pathway inhibitor α (TFPIα) and protein C pathways that inhibit the coagulation response. A recent cryogenic electron microscopy (cryo-EM) structure of fV has revealed the architecture of its A1-A2-B-A3-C1-C2 assembly but left the mechanism that keeps fV in its inactive state unresolved because of an intrinsic disorder in the B domain. A splice variant of fV, fV short, carries a large deletion of the B domain that produces constitutive fVa-like activity and unmasks epitopes for the binding of TFPIα. The cryo-EM structure of fV short was solved at 3.2 Å resolution and revealed the arrangement of the entire A1-A2-B-A3-C1-C2 assembly. The shorter B domain stretches across the entire width of the protein, making contacts with the A1, A2, and A3 domains but suspended over the C1 and C2 domains. In the portion distal to the splice site, several hydrophobic clusters and acidic residues provide a potential binding site for the basic C-terminal end of TFPIα. In fV, these epitopes may bind intramolecularly to the basic region of the B domain. The cryo-EM structure reported in this study advances our understanding of the mechanism that keeps fV in its inactive state, provides new targets for mutagenesis and facilitates future structural analysis of fV short in complex with TFPIα, protein S, and fXa.