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基本情報
登録情報 | データベース: PDB / ID: 6eit | ||||||||||||
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タイトル | Coxsackievirus A24v in complex with the D1-D2 fragment of ICAM-1 | ||||||||||||
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![]() | VIRUS / Enterovirus / Receptor / Complex / picornavirus | ||||||||||||
機能・相同性 | ![]() regulation of leukocyte mediated cytotoxicity / T cell extravasation / positive regulation of cellular extravasation / regulation of ruffle assembly / T cell antigen processing and presentation / membrane to membrane docking / T cell activation via T cell receptor contact with antigen bound to MHC molecule on antigen presenting cell / adhesion of symbiont to host / establishment of endothelial barrier / heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules ...regulation of leukocyte mediated cytotoxicity / T cell extravasation / positive regulation of cellular extravasation / regulation of ruffle assembly / T cell antigen processing and presentation / membrane to membrane docking / T cell activation via T cell receptor contact with antigen bound to MHC molecule on antigen presenting cell / adhesion of symbiont to host / establishment of endothelial barrier / heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules / leukocyte migration / leukocyte cell-cell adhesion / cell adhesion mediated by integrin / Interleukin-10 signaling / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of RIG-I activity / immunological synapse / Integrin cell surface interactions / negative regulation of endothelial cell apoptotic process / negative regulation of extrinsic apoptotic signaling pathway via death domain receptors / cellular response to leukemia inhibitory factor / ribonucleoside triphosphate phosphatase activity / picornain 2A / symbiont-mediated suppression of host mRNA export from nucleus / symbiont genome entry into host cell via pore formation in plasma membrane / picornain 3C / cellular response to glucose stimulus / T=pseudo3 icosahedral viral capsid / host cell cytoplasmic vesicle membrane / cellular response to amyloid-beta / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / Interferon gamma signaling / integrin binding / transmembrane signaling receptor activity / viral capsid / signaling receptor activity / host cell / nucleoside-triphosphate phosphatase / virus receptor activity / channel activity / : / Interleukin-4 and Interleukin-13 signaling / monoatomic ion transmembrane transport / receptor-mediated virion attachment to host cell / positive regulation of ERK1 and ERK2 cascade / RNA helicase activity / cell adhesion / membrane raft / endocytosis involved in viral entry into host cell / symbiont entry into host cell / symbiont-mediated activation of host autophagy / external side of plasma membrane / RNA-directed RNA polymerase / cysteine-type endopeptidase activity / viral RNA genome replication / focal adhesion / RNA-directed RNA polymerase activity / DNA-templated transcription / virion attachment to host cell / host cell nucleus / structural molecule activity / cell surface / proteolysis / extracellular space / RNA binding / extracellular exosome / zinc ion binding / ATP binding / membrane / plasma membrane 類似検索 - 分子機能 | ||||||||||||
生物種 | ![]() ![]() | ||||||||||||
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: 3.9 Å | ||||||||||||
![]() | Hurdiss, D.L. / Ranson, N.A. | ||||||||||||
資金援助 | ![]() ![]() ![]()
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![]() | ![]() タイトル: Role of enhanced receptor engagement in the evolution of a pandemic acute hemorrhagic conjunctivitis virus. 著者: Jim Baggen / Daniel L Hurdiss / Georg Zocher / Nitesh Mistry / Richard W Roberts / Jasper J Slager / Hongbo Guo / Arno L W van Vliet / Maryam Wahedi / Kimberley Benschop / Erwin Duizer / ...著者: Jim Baggen / Daniel L Hurdiss / Georg Zocher / Nitesh Mistry / Richard W Roberts / Jasper J Slager / Hongbo Guo / Arno L W van Vliet / Maryam Wahedi / Kimberley Benschop / Erwin Duizer / Cornelis A M de Haan / Erik de Vries / José M Casasnovas / Raoul J de Groot / Niklas Arnberg / Thilo Stehle / Neil A Ranson / Hendrik Jan Thibaut / Frank J M van Kuppeveld / ![]() ![]() ![]() ![]() ![]() 要旨: Acute hemorrhagic conjunctivitis (AHC) is a painful, contagious eye disease, with millions of cases in the last decades. Coxsackievirus A24 (CV-A24) was not originally associated with human disease, ...Acute hemorrhagic conjunctivitis (AHC) is a painful, contagious eye disease, with millions of cases in the last decades. Coxsackievirus A24 (CV-A24) was not originally associated with human disease, but in 1970 a pathogenic "variant" (CV-A24v) emerged, which is now the main cause of AHC. Initially, this variant circulated only in Southeast Asia, but it later spread worldwide, accounting for numerous AHC outbreaks and two pandemics. While both CV-A24 variant and nonvariant strains still circulate in humans, only variant strains cause AHC for reasons that are yet unknown. Since receptors are important determinants of viral tropism, we set out to map the CV-A24 receptor repertoire and establish whether changes in receptor preference have led to the increased pathogenicity and rapid spread of CV-A24v. Here, we identify ICAM-1 as an essential receptor for both AHC-causing and non-AHC strains. We provide a high-resolution cryo-EM structure of a virus-ICAM-1 complex, which revealed critical ICAM-1-binding residues. These data could help identify a possible conserved mode of receptor engagement among ICAM-1-binding enteroviruses and rhinoviruses. Moreover, we identify a single capsid substitution that has been adopted by all pandemic CV-A24v strains and we reveal that this adaptation enhances the capacity of CV-A24v to bind sialic acid. Our data elucidate the CV-A24v receptor repertoire and point to a role of enhanced receptor engagement in the adaptation to the eye, possibly enabling pandemic spread. | ||||||||||||
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構造の表示
ムービー |
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構造ビューア | 分子: ![]() ![]() |
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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 | ![]() | 162.4 KB | 表示 | ![]() |
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PDB形式 | ![]() | 127.1 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 944.3 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 949.5 KB | 表示 | |
XML形式データ | ![]() | 35.5 KB | 表示 | |
CIF形式データ | ![]() | 54.7 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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リンク
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集合体
登録構造単位 | ![]()
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対称性 | 点対称性: (シェーンフリース記号: I (正20面体型対称)) |
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要素
#1: タンパク質 | 分子量: 34378.371 Da / 分子数: 1 / 由来タイプ: 天然 由来: (天然) ![]() 細胞株: Normal human conjunctival (NHC) cells / 参照: UniProt: G3C8J7, UniProt: V9VEF3*PLUS |
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#2: タンパク質 | 分子量: 29817.412 Da / 分子数: 1 / 由来タイプ: 天然 由来: (天然) ![]() 細胞株: Normal human conjunctival (NHC) cells / 参照: UniProt: A0A088F913, UniProt: V9VEF3*PLUS |
#3: タンパク質 | 分子量: 26637.746 Da / 分子数: 1 / 由来タイプ: 天然 由来: (天然) ![]() 細胞株: Normal human conjunctival (NHC) cells / 参照: UniProt: Q0GYP7, UniProt: V9VEF3*PLUS |
#4: タンパク質 | 分子量: 9297.600 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: P05362 |
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
構成要素 |
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分子量 | 値: 8 MDa / 実験値: NO | ||||||||||||||||||||||||
由来(天然) |
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由来(組換発現) | 生物種: ![]() ![]() | ||||||||||||||||||||||||
ウイルスについての詳細 | 中空か: NO / エンベロープを持つか: NO / 単離: STRAIN / タイプ: VIRION | ||||||||||||||||||||||||
天然宿主 | 生物種: Homo sapiens | ||||||||||||||||||||||||
ウイルス殻 | 直径: 300 nm / 三角数 (T数): 3 | ||||||||||||||||||||||||
緩衝液 | pH: 7.5 詳細: TBS buffer (Coxsackievirus A24v) Phosphate buffer (ICAM-1 D1-D2) | ||||||||||||||||||||||||
試料 | 濃度: 10 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||||||||
試料支持 | グリッドの材料: COPPER / グリッドのサイズ: 400 divisions/in. グリッドのタイプ: Lacey grids coated in a 3 nm carbon film (Agar Scientific, UK) | ||||||||||||||||||||||||
急速凍結 | 装置: LEICA EM GP / 凍結剤: ETHANE / 湿度: 80 % / 凍結前の試料温度: 8 K 詳細: On-grid binding of the receptor was performed by applying 3 microliters of ICAM-1 (9.85 mg/ml) to the pre-blotted, virus-containing grid, and leaving for 30 seconds before blotting and freezing |
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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: ![]() |
電子レンズ | モード: BRIGHT FIELD |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 平均露光時間: 1.5 sec. / 電子線照射量: 60 e/Å2 / 検出モード: INTEGRATING フィルム・検出器のモデル: FEI FALCON III (4k x 4k) 撮影したグリッド数: 1 / 実像数: 2652 |
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解析
EMソフトウェア | 名称: RELION / バージョン: 2 / カテゴリ: 3次元再構成 |
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CTF補正 | 詳細: gCTF / タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
対称性 | 点対称性: I (正20面体型対称) |
3次元再構成 | 解像度: 3.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 26311 / 対称性のタイプ: POINT |
原子モデル構築 | プロトコル: OTHER / 空間: REAL |