+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-5190 | |||||||||
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タイトル | West Nile Virus in complex with Fab fragments of the neutralizing monoclonal antibody CR4354 | |||||||||
マップデータ | CryoEM map of West Nile virus in complex with Fab fragments of the neutralizing antibody CR4354 | |||||||||
試料 |
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キーワード | West Nile Virus / infectious virus / flavivirus / neutralizing antibody / Fab fragment / CR4354 / complex / envelope protein | |||||||||
機能・相同性 | 機能・相同性情報 flavivirin / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT2 activity / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT1 activity / double-stranded RNA binding / viral capsid / nucleoside-triphosphate phosphatase / mRNA (guanine-N7)-methyltransferase / methyltransferase cap1 / mRNA (nucleoside-2'-O-)-methyltransferase activity / mRNA 5'-cap (guanine-N7-)-methyltransferase activity ...flavivirin / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT2 activity / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT1 activity / double-stranded RNA binding / viral capsid / nucleoside-triphosphate phosphatase / mRNA (guanine-N7)-methyltransferase / methyltransferase cap1 / mRNA (nucleoside-2'-O-)-methyltransferase activity / mRNA 5'-cap (guanine-N7-)-methyltransferase activity / RNA helicase activity / host cell endoplasmic reticulum membrane / host cell perinuclear region of cytoplasm / protein dimerization activity / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / RNA helicase / symbiont entry into host cell / induction by virus of host autophagy / RNA-directed RNA polymerase / viral RNA genome replication / serine-type endopeptidase activity / RNA-dependent RNA polymerase activity / virus-mediated perturbation of host defense response / fusion of virus membrane with host endosome membrane / viral envelope / host cell nucleus / virion attachment to host cell / structural molecule activity / virion membrane / ATP hydrolysis activity / proteolysis / extracellular region / ATP binding / membrane / metal ion binding 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) / West Nile virus HNY99 | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 13.7 Å | |||||||||
データ登録者 | Kaufmann B / Vogt MR / Holdaway HA / Goudsmit J / Chipman PR / Kuhn RJ / Diamond MS / Rossmann MG | |||||||||
引用 | ジャーナル: Proc Natl Acad Sci U S A / 年: 2010 タイトル: Neutralization of West Nile virus by cross-linking of its surface proteins with Fab fragments of the human monoclonal antibody CR4354. 著者: Bärbel Kaufmann / Matthew R Vogt / Jaap Goudsmit / Heather A Holdaway / Anastasia A Aksyuk / Paul R Chipman / Richard J Kuhn / Michael S Diamond / Michael G Rossmann / 要旨: Many flaviviruses are significant human pathogens, with the humoral immune response playing an essential role in restricting infection and disease. CR4354, a human monoclonal antibody isolated from a ...Many flaviviruses are significant human pathogens, with the humoral immune response playing an essential role in restricting infection and disease. CR4354, a human monoclonal antibody isolated from a patient, neutralizes West Nile virus (WNV) infection at a postattachment stage in the viral life-cycle. Here, we determined the structure of WNV complexed with Fab fragments of CR4354 using cryoelectron microscopy. The outer glycoprotein shell of a mature WNV particle is formed by 30 rafts of three homodimers of the viral surface protein E. CR4354 binds to a discontinuous epitope formed by protein segments from two neighboring E molecules, but does not cause any detectable structural disturbance on the viral surface. The epitope occurs at two independent positions within an icosahedral asymmetric unit, resulting in 120 binding sites on the viral surface. The cross-linking of the six E monomers within one raft by four CR4354 Fab fragments suggests that the antibody neutralizes WNV by blocking the pH-induced rearrangement of the E protein required for virus fusion with the endosomal membrane. | |||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | EMマップ: SurfViewMolmilJmol/JSmol |
添付画像 |
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_5190.map.gz | 37.9 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-5190-v30.xml emd-5190.xml | 13.5 KB 13.5 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_5190_1.jpg | 116.8 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-5190 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-5190 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_5190_validation.pdf.gz | 304.9 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_5190_full_validation.pdf.gz | 304.5 KB | 表示 | |
XML形式データ | emd_5190_validation.xml.gz | 6.7 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-5190 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-5190 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_5190.map.gz / 形式: CCP4 / 大きさ: 99.6 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | CryoEM map of West Nile virus in complex with Fab fragments of the neutralizing antibody CR4354 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 2.7237 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-試料の構成要素
-全体 : West Nile virus NY99 complexed with Fab fragments of the neutrali...
全体 | 名称: West Nile virus NY99 complexed with Fab fragments of the neutralizing monoclonal antibody CR4354 |
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要素 |
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-超分子 #1000: West Nile virus NY99 complexed with Fab fragments of the neutrali...
超分子 | 名称: West Nile virus NY99 complexed with Fab fragments of the neutralizing monoclonal antibody CR4354 タイプ: sample / ID: 1000 詳細: complex was formed by incubating infectious virus with Fab (ratio of about 4 Fab fragments per E molecule) at 37degC for 30min, followed by a 2h incubation at RT 集合状態: T1 icosahedron with three E monomers and two Fab per asymmetric unit Number unique components: 2 |
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分子量 | 理論値: 23 MDa |
-超分子 #1: West Nile virus HNY99
超分子 | 名称: West Nile virus HNY99 / タイプ: virus / ID: 1 / Name.synonym: West Nile virus 詳細: The infectious virus (180 molecules of envelope glycoprotein E form outer protein shell of virion) is complexed with Fab fragments of the neutralizing antibody CR4354 (120 Fab molecules per virion) 生物種: West Nile virus HNY99 / データベース: NCBI / ウイルスタイプ: VIRION / ウイルス・単離状態: STRAIN / ウイルス・エンベロープ: Yes / ウイルス・中空状態: No / Syn species name: West Nile virus |
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宿主 | 生物種: Homo sapiens (ヒト) / 別称: VERTEBRATES |
分子量 | 理論値: 17 MDa |
ウイルス殻 | Shell ID: 1 / 名称: E protein shell / 直径: 495 Å / T番号(三角分割数): 1 |
-分子 #1: CR4354 Fab fragment
分子 | 名称: CR4354 Fab fragment / タイプ: protein_or_peptide / ID: 1 / Name.synonym: CR4354 Fab fragment 詳細: Fab fragments of the neutralizing monoclonal antibody CR4354 are complexed with West Nile Virus (120 Fab molecules per virion) コピー数: 120 / 集合状態: Monomer / 組換発現: Yes |
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由来(天然) | 生物種: Homo sapiens (ヒト) / 別称: Human / 組織: peripheral blood / 細胞: B cells |
分子量 | 理論値: 50 KDa |
組換発現 | 生物種: mammalian cells (unknown) |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
濃度 | 1 mg/mL |
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緩衝液 | pH: 8 / 詳細: 12mM Tris-HCl, 120mM NaCl, 1mM EDTA |
グリッド | 詳細: holey carbon 400 mesh copper grid |
凍結 | 凍結剤: ETHANE / 装置: HOMEMADE PLUNGER 詳細: Vitrification instrument: guillotine-style plunge freezing device 手法: A small vial of ethane is placed inside a larger liquid nitrogen reservoir. The grid holding a few microliters of the sample is held in place at the bottom of a plunger by the means of fine ...手法: A small vial of ethane is placed inside a larger liquid nitrogen reservoir. The grid holding a few microliters of the sample is held in place at the bottom of a plunger by the means of fine tweezers. Once the ethane in the vial is completely frozen, it needs to be slightly melted. When the liquid ethane is ready, a piece of filter paper is then pressed against the sample to blot of excess buffer, sufficient to leave a thin layer on the grid. After a predetermined time, the filter paper is removed, and the plunger is allowed to drop into the liquid ethane. Once the grid enters the liquid ethane, the sample is rapidly frozen, and the grid is transferred under liquid nitrogen to a storage box immersed liquid nitrogen for later use in the microscope. |
-電子顕微鏡法
顕微鏡 | FEI/PHILIPS CM300FEG/T |
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温度 | 平均: 98 K |
アライメント法 | Legacy - 非点収差: live FFT at 200K magnification |
詳細 | low dose imaging |
日付 | 2009年9月9日 |
撮影 | カテゴリ: FILM / フィルム・検出器のモデル: KODAK SO-163 FILM デジタル化 - スキャナー: NIKON SUPER COOLSCAN 9000 デジタル化 - サンプリング間隔: 6.35 µm / 実像数: 69 / 平均電子線量: 22 e/Å2 / 詳細: scanned images binned 2x2 / Od range: 1 / ビット/ピクセル: 8 |
Tilt angle min | 0 |
Tilt angle max | 0 |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 倍率(補正後): 47244 / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.0 mm / 最大 デフォーカス(公称値): 3.53 µm / 最小 デフォーカス(公称値): 1.45 µm / 倍率(公称値): 45000 |
試料ステージ | 試料ホルダー: Eucentric / 試料ホルダーモデル: GATAN LIQUID NITROGEN |
-画像解析
詳細 | The particles were selected interactively at the computer terminal. |
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CTF補正 | 詳細: Each particle |
最終 再構成 | アルゴリズム: OTHER / 解像度のタイプ: BY AUTHOR / 解像度: 13.7 Å / 解像度の算出法: FSC 0.5 CUT-OFF / ソフトウェア - 名称: AUTO3DEM 詳細: final map includes data to 13.0 Ang resolution (FCS at about 0.2 cut-off) 使用した粒子像数: 5006 |