- EMDB-30318: E30 F-particle in complex with FcRn -
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基本情報
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データベース: EMDB / ID: EMD-30318
タイトル
E30 F-particle in complex with FcRn
マップデータ
試料
複合体: Echovirus E30
複合体: E30 F-particle in complex with FcRn
タンパク質・ペプチド: VP1
タンパク質・ペプチド: VP2
タンパク質・ペプチド: VP3
タンパク質・ペプチド: VP4
複合体: E30 F-particle in complex with FcRn
タンパク質・ペプチド: IgG receptor FcRn large subunit p51
タンパク質・ペプチド: Beta-2-microglobulin
リガンド: MYRISTIC ACID
キーワード
Echovirus B / mature / receptor / VIRUS
機能・相同性
機能・相同性情報
IgG immunoglobulin transcytosis in epithelial cells mediated by FcRn immunoglobulin receptor / IgG binding / beta-2-microglobulin binding / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of RIG-I activity / negative regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / DAP12 interactions / transferrin transport / cellular response to iron ion ...IgG immunoglobulin transcytosis in epithelial cells mediated by FcRn immunoglobulin receptor / IgG binding / beta-2-microglobulin binding / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of RIG-I activity / negative regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / DAP12 interactions / transferrin transport / cellular response to iron ion / Endosomal/Vacuolar pathway / picornain 2A / Antigen Presentation: Folding, assembly and peptide loading of class I MHC / symbiont-mediated suppression of host mRNA export from nucleus / peptide antigen assembly with MHC class II protein complex / symbiont genome entry into host cell via pore formation in plasma membrane / picornain 3C / antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent / cellular response to iron(III) ion / MHC class II protein complex / negative regulation of forebrain neuron differentiation / ER to Golgi transport vesicle membrane / peptide antigen assembly with MHC class I protein complex / regulation of erythrocyte differentiation / regulation of iron ion transport / T=pseudo3 icosahedral viral capsid / response to molecule of bacterial origin / MHC class I peptide loading complex / HFE-transferrin receptor complex / T cell mediated cytotoxicity / antigen processing and presentation of endogenous peptide antigen via MHC class I / positive regulation of T cell cytokine production / antigen processing and presentation of exogenous peptide antigen via MHC class II / positive regulation of immune response / MHC class I protein complex / positive regulation of T cell activation / peptide antigen binding / host cell cytoplasmic vesicle membrane / positive regulation of receptor-mediated endocytosis / negative regulation of neurogenesis / positive regulation of T cell mediated cytotoxicity / cellular response to nicotine / multicellular organismal-level iron ion homeostasis / Modulation by Mtb of host immune system / specific granule lumen / phagocytic vesicle membrane / recycling endosome membrane / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / Interferon gamma signaling / negative regulation of epithelial cell proliferation / MHC class II protein complex binding / late endosome membrane / sensory perception of smell / viral capsid / positive regulation of cellular senescence / tertiary granule lumen / DAP12 signaling / T cell differentiation in thymus / ER-Phagosome pathway / host cell / nucleoside-triphosphate phosphatase / negative regulation of neuron projection development / channel activity / protein refolding / early endosome membrane / monoatomic ion transmembrane transport / protein homotetramerization / amyloid fibril formation / intracellular iron ion homeostasis / learning or memory / DNA replication / endosome membrane / RNA helicase activity / immune response / Amyloid fiber formation / endocytosis involved in viral entry into host cell / endoplasmic reticulum lumen / symbiont-mediated suppression of host gene expression / Golgi membrane / symbiont-mediated activation of host autophagy / lysosomal membrane / RNA-directed RNA polymerase / external side of plasma membrane / cysteine-type endopeptidase activity / viral RNA genome replication / focal adhesion / RNA-directed RNA polymerase activity / DNA-templated transcription / Neutrophil degranulation / virion attachment to host cell / SARS-CoV-2 activates/modulates innate and adaptive immune responses / host cell nucleus / structural molecule activity / endoplasmic reticulum / Golgi apparatus / protein homodimerization activity / ATP hydrolysis activity / proteolysis / extracellular space / RNA binding 類似検索 - 分子機能
Picornavirus coat protein VP4 superfamily / Poliovirus 3A protein-like / Poliovirus 3A protein like / Picornavirus 2B protein / Poliovirus core protein 3a, soluble domain / Picornavirus 2B protein / Peptidase C3, picornavirus core protein 2A / Picornavirus core protein 2A / Picornavirus coat protein VP4 / Picornavirus coat protein (VP4) ...Picornavirus coat protein VP4 superfamily / Poliovirus 3A protein-like / Poliovirus 3A protein like / Picornavirus 2B protein / Poliovirus core protein 3a, soluble domain / Picornavirus 2B protein / Peptidase C3, picornavirus core protein 2A / Picornavirus core protein 2A / Picornavirus coat protein VP4 / Picornavirus coat protein (VP4) / Class I Histocompatibility antigen, domains alpha 1 and 2 / Beta-2-Microglobulin / Peptidase C3A/C3B, picornaviral / 3C cysteine protease (picornain 3C) / Picornavirales 3C/3C-like protease domain / Picornavirales 3C/3C-like protease domain profile. / : / MHC class I-like antigen recognition-like / MHC class I-like antigen recognition-like superfamily / Picornavirus capsid / picornavirus capsid protein / Helicase, superfamily 3, single-stranded RNA virus / Superfamily 3 helicase of positive ssRNA viruses domain profile. / Helicase, superfamily 3, single-stranded DNA/RNA virus / RNA helicase / MHC classes I/II-like antigen recognition protein / Picornavirus/Calicivirus coat protein / : / Viral coat protein subunit / Immunoglobulin/major histocompatibility complex, conserved site / Immunoglobulins and major histocompatibility complex proteins signature. / Immunoglobulin C-Type / Immunoglobulin C1-set / Immunoglobulin C1-set domain / RNA-directed RNA polymerase, C-terminal domain / Viral RNA-dependent RNA polymerase / Reverse transcriptase/Diguanylate cyclase domain / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / RNA-directed RNA polymerase, catalytic domain / RdRp of positive ssRNA viruses catalytic domain profile. / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / Peptidase S1, PA clan, chymotrypsin-like fold / Immunoglobulin-like fold / Peptidase S1, PA clan / DNA/RNA polymerase superfamily / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性
ジャーナル: Nat Commun / 年: 2020 タイトル: Structures of Echovirus 30 in complex with its receptors inform a rational prediction for enterovirus receptor usage. 著者: Kang Wang / Ling Zhu / Yao Sun / Minhao Li / Xin Zhao / Lunbiao Cui / Li Zhang / George F Gao / Weiwei Zhai / Fengcai Zhu / Zihe Rao / Xiangxi Wang / 要旨: Receptor usage that determines cell tropism and drives viral classification closely correlates with the virus structure. Enterovirus B (EV-B) consists of several subgroups according to receptor ...Receptor usage that determines cell tropism and drives viral classification closely correlates with the virus structure. Enterovirus B (EV-B) consists of several subgroups according to receptor usage, among which echovirus 30 (E30), a leading causative agent for human aseptic meningitis, utilizes FcRn as an uncoating receptor. However, receptors for many EVs remain unknown. Here we analyzed the atomic structures of E30 mature virion, empty- and A-particles, which reveals serotype-specific epitopes and striking conformational differences between the subgroups within EV-Bs. Of these, the VP1 BC loop markedly distinguishes E30 from other EV-Bs, indicative of a role as a structural marker for EV-B. By obtaining cryo-electron microscopy structures of E30 in complex with its receptor FcRn and CD55 and comparing its homologs, we deciphered the underlying molecular basis for receptor recognition. Together with experimentally derived viral receptor identifications, we developed a structure-based in silico algorithm to inform a rational prediction for EV receptor usage.