- EMDB-45675: Cryo-EM model derived from localized reconstruction of human aden... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-45675
タイトル
Cryo-EM model derived from localized reconstruction of human adenovirus (Ad5)-hexon-FX complex at 3.6A resolution
マップデータ
試料
複合体: Human adenovirus 5 (Ad5) in complex with Coagulation factor FX
細胞器官・細胞要素: Hexon protein
細胞器官・細胞要素: Human Coagulation Factor X
タンパク質・ペプチド: Coagulation factor X
タンパク質・ペプチド: Hexon protein
リガンド: CALCIUM ION
キーワード
Adenovirus / Hexon / Coagulation factor X / Coagulation factor II / Prothrombin / Complex / Interactions / VIRUS
機能・相同性
機能・相同性情報
T=25 icosahedral viral capsid / coagulation factor Xa / Defective factor IX causes thrombophilia / Defective cofactor function of FVIIIa variant / Defective F9 variant does not activate FX / microtubule-dependent intracellular transport of viral material towards nucleus / Extrinsic Pathway of Fibrin Clot Formation / positive regulation of TOR signaling / Transport of gamma-carboxylated protein precursors from the endoplasmic reticulum to the Golgi apparatus / Gamma-carboxylation of protein precursors ...T=25 icosahedral viral capsid / coagulation factor Xa / Defective factor IX causes thrombophilia / Defective cofactor function of FVIIIa variant / Defective F9 variant does not activate FX / microtubule-dependent intracellular transport of viral material towards nucleus / Extrinsic Pathway of Fibrin Clot Formation / positive regulation of TOR signaling / Transport of gamma-carboxylated protein precursors from the endoplasmic reticulum to the Golgi apparatus / Gamma-carboxylation of protein precursors / Common Pathway of Fibrin Clot Formation / Removal of aminoterminal propeptides from gamma-carboxylated proteins / Intrinsic Pathway of Fibrin Clot Formation / phospholipid binding / Golgi lumen / blood coagulation / viral capsid / host cell / positive regulation of cell migration / endoplasmic reticulum lumen / symbiont entry into host cell / external side of plasma membrane / serine-type endopeptidase activity / calcium ion binding / host cell nucleus / structural molecule activity / proteolysis / extracellular space / extracellular region / plasma membrane 類似検索 - 分子機能
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)
AI161367
米国
引用
ジャーナル: Nat Commun / 年: 2024 タイトル: Structure-derived insights from blood factors binding to the surfaces of different adenoviruses. 著者: Haley E Mudrick / Shao-Chia Lu / Janarjan Bhandari / Mary E Barry / Jack R Hemsath / Felix G M Andres / Olivia X Ma / Michael A Barry / Vijay S Reddy / 要旨: The tropism of adenoviruses (Ads) is significantly influenced by the binding of various blood factors. To investigate differences in their binding, we conducted cryo-EM analysis on complexes of ...The tropism of adenoviruses (Ads) is significantly influenced by the binding of various blood factors. To investigate differences in their binding, we conducted cryo-EM analysis on complexes of several human adenoviruses with human platelet factor-4 (PF4), coagulation factors FII (Prothrombin), and FX. While we observed EM densities for FII and FX bound to all the species-C adenoviruses examined, no densities were seen for PF4, even though PF4 can co-pellet with various Ads. Similar to FX, the γ-carboxyglutamic acid (Gla) domain of FII binds within the surface cavity of hexon trimers. While FII binds equally to species-C Ads: Ad5, Ad6, and Ad657, FX exhibits significantly better binding to Ad5 and Ad657 compared to Ad6. Although only the FX-Gla domain is observed at high-resolution (3.7 Å), the entire FX is visible at low-resolution bound to Ad5 in three equivalent binding modes consistent with the 3-fold symmetric hexon. Only the Gla and kringle-1 domains of FII are visible on all the species-C adenoviruses, where the rigid FII binds in an upright fashion, in contrast to the flexible and bent FX. These data suggest that differential binding of FII and FX may shield certain species-C adenoviruses differently against immune molecules, thereby modulating their tropism.