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データを開く
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基本情報
登録情報 | データベース: PDB / ID: 5y0a | ||||||
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タイトル | Cryo-EM structure of zika virus complexed with Fab of ZKA190 at pH 8.0 and 37 celsius degree | ||||||
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![]() | VIRUS/IMMUNE SYSTEM / virus / antibody / complex / VIRUS-IMMUNE SYSTEM complex / icosahedral virus | ||||||
機能・相同性 | ![]() flavivirin / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of host TYK2 activity / 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 / ribonucleoside triphosphate phosphatase activity / negative regulation of innate immune response / methyltransferase activity / viral capsid / double-stranded RNA binding / nucleoside-triphosphate phosphatase ...flavivirin / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of host TYK2 activity / 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 / ribonucleoside triphosphate phosphatase activity / negative regulation of innate immune response / methyltransferase activity / viral capsid / double-stranded RNA binding / nucleoside-triphosphate phosphatase / 4 iron, 4 sulfur cluster binding / mRNA (guanine-N7)-methyltransferase / methyltransferase cap1 / methylation / molecular adaptor activity / clathrin-dependent endocytosis of virus by host cell / methyltransferase cap1 activity / mRNA 5'-cap (guanine-N7-)-methyltransferase activity / RNA helicase activity / protein dimerization activity / host cell perinuclear region of cytoplasm / host cell endoplasmic reticulum membrane / symbiont-mediated suppression of host innate immune response / RNA helicase / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / symbiont-mediated activation of host autophagy / serine-type endopeptidase activity / RNA-directed RNA polymerase / viral RNA genome replication / RNA-directed RNA polymerase activity / fusion of virus membrane with host endosome membrane / lipid binding / viral envelope / centrosome / symbiont entry into host cell / GTP binding / virion attachment to host cell / host cell nucleus / virion membrane / structural molecule activity / ATP hydrolysis activity / proteolysis / extracellular region / ATP binding / metal ion binding / 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: 22 Å | ||||||
![]() | Wang, J.Q. / Lok, S.M. | ||||||
![]() | ![]() タイトル: A Human Bi-specific Antibody against Zika Virus with High Therapeutic Potential. 著者: Jiaqi Wang / Marco Bardelli / Diego A Espinosa / Mattia Pedotti / Thiam-Seng Ng / Siro Bianchi / Luca Simonelli / Elisa X Y Lim / Mathilde Foglierini / Fabrizia Zatta / Stefano Jaconi / ...著者: Jiaqi Wang / Marco Bardelli / Diego A Espinosa / Mattia Pedotti / Thiam-Seng Ng / Siro Bianchi / Luca Simonelli / Elisa X Y Lim / Mathilde Foglierini / Fabrizia Zatta / Stefano Jaconi / Martina Beltramello / Elisabetta Cameroni / Guntur Fibriansah / Jian Shi / Taylor Barca / Isabel Pagani / Alicia Rubio / Vania Broccoli / Elisa Vicenzi / Victoria Graham / Steven Pullan / Stuart Dowall / Roger Hewson / Simon Jurt / Oliver Zerbe / Karin Stettler / Antonio Lanzavecchia / Federica Sallusto / Andrea Cavalli / Eva Harris / Shee-Mei Lok / Luca Varani / Davide Corti / ![]() ![]() ![]() ![]() ![]() 要旨: Zika virus (ZIKV), a mosquito-borne flavivirus, causes devastating congenital birth defects. We isolated a human monoclonal antibody (mAb), ZKA190, that potently cross-neutralizes multi-lineage ZIKV ...Zika virus (ZIKV), a mosquito-borne flavivirus, causes devastating congenital birth defects. We isolated a human monoclonal antibody (mAb), ZKA190, that potently cross-neutralizes multi-lineage ZIKV strains. ZKA190 is highly effective in vivo in preventing morbidity and mortality of ZIKV-infected mice. NMR and cryo-electron microscopy show its binding to an exposed epitope on DIII of the E protein. ZKA190 Fab binds all 180 E protein copies, altering the virus quaternary arrangement and surface curvature. However, ZIKV escape mutants emerged in vitro and in vivo in the presence of ZKA190, as well as of other neutralizing mAbs. To counter this problem, we developed a bispecific antibody (FIT-1) comprising ZKA190 and a second mAb specific for DII of E protein. In addition to retaining high in vitro and in vivo potencies, FIT-1 robustly prevented viral escape, warranting its development as a ZIKV immunotherapy. #1: ![]() タイトル: Cryo-EM structure of zika virus complexed with a human monoclonal antibody 著者: Wang, J.Q. / Lok, S.M. | ||||||
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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 | ![]() | 70.8 KB | 表示 | ![]() |
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PDB形式 | ![]() | 43.5 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
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-検証レポート
文書・要旨 | ![]() | 869 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 869.1 KB | 表示 | |
XML形式データ | ![]() | 30.1 KB | 表示 | |
CIF形式データ | ![]() | 46.1 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
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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: 44069.930 Da / 分子数: 3 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 株: Mr 766 / 細胞株 (発現宿主): C6/36 / 発現宿主: ![]() ![]() #2: 抗体 | 分子量: 14410.010 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #3: 抗体 | 分子量: 11935.241 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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-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 | 実験値: NO | ||||||||||||||||||||||||
由来(天然) | 生物種: ![]() ![]() | ||||||||||||||||||||||||
緩衝液 | pH: 8 | ||||||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 1 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 | ||||||||||||||||||||||||
急速凍結 | 凍結剤: ETHANE |
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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 / Cs: 2.7 mm |
撮影 | 電子線照射量: 20 e/Å2 フィルム・検出器のモデル: FEI FALCON II (4k x 4k) |
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解析
EMソフトウェア |
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CTF補正 | 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: 22 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 6728 / アルゴリズム: BACK PROJECTION / 対称性のタイプ: POINT | |||||||||||||||||||||
原子モデル構築 | プロトコル: RIGID BODY FIT |