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基本情報
登録情報 | データベース: PDB / ID: 8rvn | ||||||
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タイトル | Nipah virus (NiV) fusion protein in complex with neutralizing Fab92 | ||||||
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![]() | VIRAL PROTEIN / Nipah / antibody / neutralization / fusion protein / glycoprotein | ||||||
機能・相同性 | ![]() membrane fusion involved in viral entry into host cell / symbiont entry into host cell / fusion of virus membrane with host plasma membrane / viral envelope / host cell plasma membrane / virion membrane / 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: 3.5 Å | ||||||
![]() | Avanzato, V.A. / Stass, R. / Duyvesteyn, H.M.E. / Bowden, T.A. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: A monoclonal antibody targeting the Nipah virus fusion glycoprotein apex imparts protection from disease. 著者: Victoria A Avanzato / Trenton Bushmaker / Kasopefoluwa Y Oguntuyo / Claude Kwe Yinda / Helen M E Duyvesteyn / Robert Stass / Kimberly Meade-White / Rebecca Rosenke / Tina Thomas / Neeltje van ...著者: Victoria A Avanzato / Trenton Bushmaker / Kasopefoluwa Y Oguntuyo / Claude Kwe Yinda / Helen M E Duyvesteyn / Robert Stass / Kimberly Meade-White / Rebecca Rosenke / Tina Thomas / Neeltje van Doremalen / Greg Saturday / Katie J Doores / Benhur Lee / Thomas A Bowden / Vincent J Munster / ![]() ![]() 要旨: Nipah virus (NiV) is a highly pathogenic paramyxovirus capable of causing severe respiratory and neurologic disease in humans. Currently, there are no licensed vaccines or therapeutics against NiV, ...Nipah virus (NiV) is a highly pathogenic paramyxovirus capable of causing severe respiratory and neurologic disease in humans. Currently, there are no licensed vaccines or therapeutics against NiV, underscoring the urgent need for the development of countermeasures. The NiV surface-displayed glycoproteins, NiV-G and NiV-F, mediate host cell attachment and fusion, respectively, and are heavily targeted by host antibodies. Here, we describe a vaccination-derived neutralizing monoclonal antibody, mAb92, that targets NiV-F. Structural characterization of the Fab region bound to NiV-F (NiV-F-Fab92) by cryo-electron microscopy analysis reveals an epitope in the DIII domain at the membrane distal apex of NiV-F, an established site of vulnerability on the NiV surface. Further, prophylactic treatment of hamsters with mAb92 offered complete protection from NiV disease, demonstrating beneficial activity of mAb92 . This work provides support for targeting NiV-F in the development of vaccines and therapeutics against NiV.IMPORTANCENipah virus (NiV) is a highly lethal henipavirus (HNV) that causes severe respiratory and neurologic disease in humans. Currently, there are no licensed vaccines or therapeutics against NiV, highlighting a need to develop countermeasures. The NiV surface displays the receptor binding protein (NiV-G, or RBP) and the fusion protein (NiV-F), which allow the virus to attach and enter cells. These proteins can be targeted by vaccines and antibodies to prevent disease. This work describes a neutralizing antibody (mAb92) that targets NiV-F. Structural characterization by cryo-electron microscopy analysis reveals where the antibody binds to NiV-F to neutralize the virus. This study also shows that prophylactic treatment of hamsters with mAb92 completely protected against developing NiV disease. This work shows how targeting NiV-F can be useful to preventing NiV disease, supporting future studies in the development of vaccines and therapeutics. | ||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 274.4 KB | 表示 | ![]() |
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PDB形式 | ![]() | 219.1 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
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アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 19525MC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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リンク
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集合体
登録構造単位 | ![]()
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要素
#1: タンパク質 | 分子量: 55131.039 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #2: タンパク質 | | 分子量: 22841.697 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() #3: 抗体 | | 分子量: 22564.949 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() #4: 糖 | ChemComp-NAG / 研究の焦点であるリガンドがあるか | N | Has protein modification | Y | |
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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 | 名称: Nipah virus fusion (F) glycoprotein in complex with Fab92 タイプ: COMPLEX / Entity ID: #1-#3 / 由来: RECOMBINANT |
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由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 8 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 凍結剤: ETHANE-PROPANE |
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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: TFS KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 3700 nm / 最小 デフォーカス(公称値): 1400 nm |
撮影 | 電子線照射量: 44.37 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
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解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3次元再構成 | 解像度: 3.5 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 178307 / 対称性のタイプ: POINT |
原子モデル構築 | プロトコル: AB INITIO MODEL |
原子モデル構築 | PDB-ID: 6T3F Accession code: 6T3F / Source name: PDB / タイプ: experimental model |