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データを開く
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基本情報
| 登録情報 | ![]() | |||||||||
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| タイトル | Q23.MD39 in Complex with Fabs from antibodies CH01 iGL and 35O22 | |||||||||
マップデータ | ||||||||||
試料 |
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キーワード | Antibody / Complex / VIRAL PROTEIN / VIRAL PROTEIN-IMMUNE SYSTEM complex | |||||||||
| 機能・相同性 | 機能・相同性情報symbiont-mediated perturbation of host defense response / positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / viral protein processing / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell ...symbiont-mediated perturbation of host defense response / positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / viral protein processing / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / host cell plasma membrane / virion membrane / structural molecule activity / membrane 類似検索 - 分子機能 | |||||||||
| 生物種 | ![]() Human immunodeficiency virus 1 (ヒト免疫不全ウイルス) / Homo sapiens (ヒト) | |||||||||
| 手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.35 Å | |||||||||
データ登録者 | Lin ZJ / Cui J / Du J / Habib R / Kulp D / Pallesen J | |||||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: bioRxiv / 年: 2025タイトル: Deep Mining of the Human Antibody Repertoire Identifies Frequent and Genetically Diverse CDRH3 Topologies Targetable by Vaccination. 著者: Rumi Habib / Shahlo O Solieva / Zi Jie Lin / Sukanya Ghosh / Kelly Bayruns / Maya Singh / Colby J Agostino / Nicholas J Tursi / Kirsten J Sowers / Jinwei Huang / Ryan S Roark / Mansi Purwar / ...著者: Rumi Habib / Shahlo O Solieva / Zi Jie Lin / Sukanya Ghosh / Kelly Bayruns / Maya Singh / Colby J Agostino / Nicholas J Tursi / Kirsten J Sowers / Jinwei Huang / Ryan S Roark / Mansi Purwar / Younghoon Park / Kasirajan Ayyanathan / Hui Li / John W Carey / Amber Kim / Joyce Park / Madison E McCanna / Ashwin N Skelly / Neethu Chokkalingam / Sinja Kriete / Nicholas Shupin / Alana Huynh / Susanne Walker / Roopak Sadeesh / Niklas Laenger / Jianqiu Du / Jiayan Cui / Ami Patel / Amelia Escolano / Peter D Kwong / Lawrence Shapiro / Gregory R Bowman / Beatrice H Hahn / George M Shaw / David B Weiner / Jesper Pallesen / Daniel W Kulp 要旨: Germline targeting vaccination strategies against highly variable pathogens such as HIV aim to elicit broadly neutralizing antibodies (bnAbs) with particular immunogenetic or structural features. The ...Germline targeting vaccination strategies against highly variable pathogens such as HIV aim to elicit broadly neutralizing antibodies (bnAbs) with particular immunogenetic or structural features. The V2 apex of the HIV Env protein is a promising target for a class of bnAbs that contain conserved structural motifs in the heavy chain complementarity determining region 3 (CDRH3). Here, we show that these structural motifs are targetable by vaccination by characterizing V2 apex 'axe-like' CDRH3s in the human repertoire and developing new immunogens capable of engaging them. We determined the frequency and diversity of axe-like CDHR3s in healthy human donors using a series of structural informatics approaches, finding these precursors in nearly 90% of donors. Axe-targeting immunogens based on the HIV Env Q23.17 bound axe-like precursors in cryo-EM structures, induced V2 apex-specific antibody responses in humanized mice, and induced axe-like heterologous neutralizing antibodies in rhesus macaques infected with a germline-targeted simian-human immunodeficiency virus. These results illustrate a new structure-guided immunoinformatic vaccine design paradigm that can be employed to elicit immunogenetically diverse yet structurally conserved classes of antibodies. SIGNIFICANCE STATEMENT: Many broadly neutralizing antibodies (bnAbs) utilize modes of epitope recognition dominated by the antibody complementarity determining region 3 (CDRH3). The CDRH3 is the most ...SIGNIFICANCE STATEMENT: Many broadly neutralizing antibodies (bnAbs) utilize modes of epitope recognition dominated by the antibody complementarity determining region 3 (CDRH3). The CDRH3 is the most diverse part of the antibody, posing a challenge for germline targeting vaccine designs that aim to elicit antibodies with particular immunogenetic features. Vaccine design strategies that accommodate CDRH3 variability are therefore needed. Many HIV Env V2 apex bnAbs share "axe-like" CDRH3 microfolds that arise from diverse immunogenetic origins. Here we determined the frequency in humans of B cells with such CDRH3 topologies and designed immunogens to engage their precursors. This work opens a path toward vaccines that engage specific structural classes of B cells, thereby advancing the rational design of immunogens for HIV and other pathogens. | |||||||||
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構造の表示
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ダウンロードとリンク
-EMDBアーカイブ
| マップデータ | emd_46884.map.gz | 141.7 MB | EMDBマップデータ形式 | |
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| ヘッダ (付随情報) | emd-46884-v30.xml emd-46884.xml | 25.8 KB 25.8 KB | 表示 表示 | EMDBヘッダ |
| FSC (解像度算出) | emd_46884_fsc.xml | 11.2 KB | 表示 | FSCデータファイル |
| 画像 | emd_46884.png | 63.9 KB | ||
| Filedesc metadata | emd-46884.cif.gz | 7.7 KB | ||
| その他 | emd_46884_half_map_1.map.gz emd_46884_half_map_2.map.gz | 138.9 MB 138.9 MB | ||
| アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-46884 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-46884 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 9dhwMC ![]() 9dimC M: このマップから作成された原子モデル 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 F&H 検索 |
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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 |
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マップ
| ファイル | ダウンロード / ファイル: emd_46884.map.gz / 形式: CCP4 / 大きさ: 149.9 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| 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: 1.054 Å | ||||||||||||||||||||||||||||||||||||
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| 対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
| 詳細 | EMDB XML:
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-添付データ
-ハーフマップ: #2
| ファイル | emd_46884_half_map_1.map | ||||||||||||
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| 投影像・断面図 |
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| 密度ヒストグラム |
-ハーフマップ: #1
| ファイル | emd_46884_half_map_2.map | ||||||||||||
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| 投影像・断面図 |
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| 密度ヒストグラム |
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試料の構成要素
+全体 : Q23.MD39 Env trimer in Complex with CH01 iGL and 35O22
+超分子 #1: Q23.MD39 Env trimer in Complex with CH01 iGL and 35O22
+超分子 #2: Q23.MD39 Env trimer
+超分子 #3: 35O22 Fab
+超分子 #4: CH01 iGL Fab
+分子 #1: Q23.MD39 Surface protein gp120
+分子 #2: Q23.MD39 Transmembrane protein gp41
+分子 #3: 35O22 Fab Heavy Chain
+分子 #4: 35O22 Fab Light Chain
+分子 #5: CH01 iGL Fab Light Chain
+分子 #6: CH01 iGL Fab Heavy Chain
+分子 #16: 2-acetamido-2-deoxy-beta-D-glucopyranose
-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 |
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試料調製
| 緩衝液 | pH: 7.6 / 詳細: 1X PBS |
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| グリッド | モデル: UltrAuFoil R1.2/1.3 / 材質: GOLD / メッシュ: 300 / 支持フィルム - 材質: GRAPHENE OXIDE / 支持フィルム - トポロジー: HOLEY |
| 凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 298 K / 装置: FEI VITROBOT MARK IV |
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電子顕微鏡法
| 顕微鏡 | TFS KRIOS |
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| 撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 平均電子線量: 40.0 e/Å2 |
| 電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
| 電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.5 µm / 最小 デフォーカス(公称値): 0.5 µm |
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
ムービー
コントローラー
万見について




キーワード
Human immunodeficiency virus 1 (ヒト免疫不全ウイルス)
Homo sapiens (ヒト)
データ登録者
米国, 1件
引用





Z (Sec.)
Y (Row.)
X (Col.)





































解析
FIELD EMISSION GUN

