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基本情報
登録情報 | データベース: EMDB / ID: EMD-7553 | |||||||||
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タイトル | CryoEM map of BG505 SOSIP.664 in complex with post boost 1 serum from rabbit 3417 | |||||||||
![]() | 3D classification map. Particles classified into six maps. One map was classified again into three different maps. Three of those three maps were refined into this one. | |||||||||
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生物種 | ![]() ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 4.7 Å | |||||||||
![]() | Turner HL / Ward AB / Nogal B | |||||||||
![]() | ![]() タイトル: Electron-Microscopy-Based Epitope Mapping Defines Specificities of Polyclonal Antibodies Elicited during HIV-1 BG505 Envelope Trimer Immunization. 著者: Matteo Bianchi / Hannah L Turner / Bartek Nogal / Christopher A Cottrell / David Oyen / Matthias Pauthner / Raiza Bastidas / Rebecca Nedellec / Laura E McCoy / Ian A Wilson / Dennis R Burton ...著者: Matteo Bianchi / Hannah L Turner / Bartek Nogal / Christopher A Cottrell / David Oyen / Matthias Pauthner / Raiza Bastidas / Rebecca Nedellec / Laura E McCoy / Ian A Wilson / Dennis R Burton / Andrew B Ward / Lars Hangartner / ![]() ![]() 要旨: Characterizing polyclonal antibody responses via currently available methods is inherently complex and difficult. Mapping epitopes in an immune response is typically incomplete, which creates a ...Characterizing polyclonal antibody responses via currently available methods is inherently complex and difficult. Mapping epitopes in an immune response is typically incomplete, which creates a barrier to fully understanding the humoral response to antigens and hinders rational vaccine design efforts. Here, we describe a method of characterizing polyclonal responses by using electron microscopy, and we applied this method to the immunization of rabbits with an HIV-1 envelope glycoprotein vaccine candidate, BG505 SOSIP.664. We detected known epitopes within the polyclonal sera and revealed how antibody responses evolved during the prime-boosting strategy to ultimately result in a neutralizing antibody response. We uncovered previously unidentified epitopes, including an epitope proximal to one recognized by human broadly neutralizing antibodies as well as potentially distracting non-neutralizing epitopes. Our method provides an efficient and semiquantitative map of epitopes that are targeted in a polyclonal antibody response and should be of widespread utility in vaccine and infection studies. | |||||||||
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構造の表示
ムービー |
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構造ビューア | EMマップ: ![]() ![]() ![]() |
添付画像 |
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ダウンロードとリンク
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マップデータ | ![]() | 96.6 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 11.4 KB 11.4 KB | 表示 表示 | ![]() |
画像 | ![]() | 64.3 KB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 77.9 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 77 KB | 表示 | |
XML形式データ | ![]() | 493 B | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 7552C ![]() 7554C ![]() 7555C ![]() 7556C ![]() 7557C ![]() 7570C ![]() 7887C ![]() 7888C ![]() 7889C ![]() 7890C ![]() 7891C ![]() 7892C ![]() 7893C ![]() 7894C ![]() 7895C ![]() 7896C ![]() 7903C ![]() 7904C ![]() 7906C ![]() 6cjkC ![]() 6didC C: 同じ文献を引用 ( |
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類似構造データ |
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リンク
EMDBのページ | ![]() ![]() |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | 3D classification map. Particles classified into six maps. One map was classified again into three different maps. Three of those three maps were refined into this one. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.15 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
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試料の構成要素
-全体 : Complex of BG505 SOSIP.664 and serum antibodies from post boost 1...
全体 | 名称: Complex of BG505 SOSIP.664 and serum antibodies from post boost 1 from rabbit 3417. Map of subset particles classified using CryoSparc |
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要素 |
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-超分子 #1: Complex of BG505 SOSIP.664 and serum antibodies from post boost 1...
超分子 | 名称: Complex of BG505 SOSIP.664 and serum antibodies from post boost 1 from rabbit 3417. Map of subset particles classified using CryoSparc タイプ: complex / ID: 1 / 親要素: 0 詳細: Serum was purified through SEC after using a Protein A or G column to capture complex then cleave IgG releasing Fab and trimer. All particles were 3D classified into 6 maps. One map was 3D ...詳細: Serum was purified through SEC after using a Protein A or G column to capture complex then cleave IgG releasing Fab and trimer. All particles were 3D classified into 6 maps. One map was 3D classified into 3 more maps. Particles from 2 of those maps were combined and refined into this asymmetric model. Substoichiometric occupancy and flexibility show lack of density in Fab region while trimer core and glycan hole antibodies are refined to higher resolution. |
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由来(天然) | 生物種: ![]() ![]() |
組換発現 | 生物種: ![]() |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
濃度 | 1.44 mg/mL |
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緩衝液 | pH: 7.4 / 詳細: TBS |
グリッド | モデル: Quantifoil R1.2/1.3 |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / 装置: FEI VITROBOT MARK IV |
詳細 | Sample in TBS, added 0.5uL of DDM at 0.42mM. Sample was monodisperse |
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電子顕微鏡法
顕微鏡 | FEI TECNAI ARCTICA |
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撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 検出モード: COUNTING / デジタル化 - 画像ごとのフレーム数: 1-46 / 平均露光時間: 11.5 sec. / 平均電子線量: 60.0 e/Å2 |
電子線 | 加速電圧: 200 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
実験機器 | ![]() モデル: Talos Arctica / 画像提供: FEI Company |