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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: 8uzc | ||||||||||||||||||||||||
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タイトル | Structure of UT14 Fab in complex with the head domain of H3 (A/Singapore/INFIMH-16-0019/2016) | ||||||||||||||||||||||||
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![]() | IMMUNE SYSTEM / Complex / viral protein / Influenza / Hemagglutinin | ||||||||||||||||||||||||
機能・相同性 | ![]() clathrin-dependent endocytosis of virus by host cell / host cell surface receptor binding / 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 / 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: 3.8 Å | ||||||||||||||||||||||||
![]() | Park, J. / Georgiou, G. | ||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Molecular features of the serological IgG repertoire elicited by egg-based, cell-based, or recombinant haemagglutinin-based seasonal influenza vaccines: a comparative, prospective, ...タイトル: Molecular features of the serological IgG repertoire elicited by egg-based, cell-based, or recombinant haemagglutinin-based seasonal influenza vaccines: a comparative, prospective, observational cohort study. 著者: Juyeon Park / Foteini Bartzoka / Troy von Beck / Zhu-Nan Li / Margarita Mishina / Luke S Hebert / Jessica Kain / Feng Liu / Suresh Sharma / Weiping Cao / Devon J Eddins / Amrita Kumar / Jin ...著者: Juyeon Park / Foteini Bartzoka / Troy von Beck / Zhu-Nan Li / Margarita Mishina / Luke S Hebert / Jessica Kain / Feng Liu / Suresh Sharma / Weiping Cao / Devon J Eddins / Amrita Kumar / Jin Eyun Kim / Justin S Lee / Yuanyuan Wang / Evan A Schwartz / Axel F Brilot / Ed Satterwhite / Dalton M Towers / Eric McKnight / Jan Pohl / Mark G Thompson / Manjusha Gaglani / Fatimah S Dawood / Allison L Naleway / James Stevens / Richard B Kennedy / Joshy Jacob / Jason J Lavinder / Min Z Levine / Shivaprakash Gangappa / Gregory C Ippolito / Suryaprakash Sambhara / George Georgiou / ![]() 要旨: BACKGROUND: Egg-based inactivated quadrivalent seasonal influenza vaccine (eIIV4), cell culture-based inactivated quadrivalent seasonal influenza vaccine (ccIIV4), and recombinant haemagglutinin (HA) ...BACKGROUND: Egg-based inactivated quadrivalent seasonal influenza vaccine (eIIV4), cell culture-based inactivated quadrivalent seasonal influenza vaccine (ccIIV4), and recombinant haemagglutinin (HA)-based quadrivalent seasonal influenza vaccine (RIV4) have been licensed for use in the USA. In this study, we used antigen-specific serum proteomics analysis to assess how the molecular composition and qualities of the serological antibody repertoires differ after seasonal influenza immunisation by each of the three vaccines and how different vaccination platforms affect the HA binding affinity and breadth of the serum antibodies that comprise the polyclonal response. 手法: In this comparative, prospective, observational cohort study, we included female US health-care personnel (mean age 47·6 years [SD 8]) who received a single dose of RIV4, eIIV4, or ccIIV4 ...手法: In this comparative, prospective, observational cohort study, we included female US health-care personnel (mean age 47·6 years [SD 8]) who received a single dose of RIV4, eIIV4, or ccIIV4 during the 2018-19 influenza season at Baylor Scott & White Health (Temple, TX, USA). Eligible individuals were selected based on comparable day 28 serum microneutralisation titres and similar vaccination history. Laboratory investigators were blinded to assignment until testing was completed. The preplanned exploratory endpoints were assessed by deconvoluting the serological repertoire specific to A/Singapore/INFIMH-16-0019/2016 (H3N2) HA before (day 0) and after (day 28) immunisation using bottom-up liquid chromatography-mass spectrometry proteomics (referred to as Ig-Seq) and natively paired variable heavy chain-variable light chain high-throughput B-cell receptor sequencing (referred to as BCR-Seq). Features of the antigen-specific serological repertoire at day 0 and day 28 for the three vaccine groups were compared. Antibodies identified with high confidence in sera were recombinantly expressed and characterised in depth to determine the binding affinity and breadth to time-ordered H3 HA proteins. FINDINGS: During September and October of the 2018-19 influenza season, 15 individuals were recruited and assigned to receive RIV4 (n=5), eIIV4 (n=5), or ccIIV4 (n=5). For all three cohorts, the ...FINDINGS: During September and October of the 2018-19 influenza season, 15 individuals were recruited and assigned to receive RIV4 (n=5), eIIV4 (n=5), or ccIIV4 (n=5). For all three cohorts, the serum antibody repertoire was dominated by back-boosted antibody lineages (median 98% [95% CI 88-99]) that were present in the serum before vaccination. Although vaccine platform-dependent differences were not evident in the repertoire diversity, somatic hypermutation, or heavy chain complementarity determining region 3 biochemical features, antibodies boosted by RIV4 showed substantially higher binding affinity to the vaccine H3/HA (median half-maximal effective concentration [EC50] to A/Singapore/INFIMH-16-0019/2016 HA: 0·037 μg/mL [95% CI 0·012-0·12] for RIV4; 4·43 μg/mL [0·030-100·0] for eIIV4; and 18·50 μg/mL [0·99-100·0] μg/mL for ccIIV4) and also the HAs from contemporary H3N2 strains than did those elicited by eIIV4 or ccIIV4 (median EC50 to A/Texas/50/2012 HA: 0·037 μg/mL [0·017-0·32] for RIV4; 1·10 μg/mL [0·045-100] for eIIV4; and 12·6 μg/mL [1·8-100] for ccIIV4). Comparison of B-cell receptor sequencing repertoires on day 7 showed that eIIV4 increased the median frequency of canonical egg glycan-targeting B cells (0·20% [95% CI 0·067-0·37] for eIIV4; 0·058% [0·050-0·11] for RIV4; and 0·035% [0-0·062] for ccIIV4), whereas RIV4 vaccination decreased the median frequency of B-cell receptors displaying stereotypical features associated with membrane proximal anchor-targeting antibodies (0·062% [95% CI 0-0·084] for RIV4; 0·12% [0·066-0·16] for eIIV4; and 0·18% [0·016-0·20] for ccIIV4). In exploratory analysis, we characterised the structure of a highly abundant monoclonal antibody that binds to both group 1 and 2 HAs and recognises the HA trimer interface, despite its sequence resembling the stereotypical sequence motif found in membrane-proximal anchor binding antibodies. INTERPRETATION: Although all three licensed seasonal influenza vaccines elicit serological antibody repertoires with indistinguishable features shaped by heavy imprinting, the RIV4 vaccine ...INTERPRETATION: Although all three licensed seasonal influenza vaccines elicit serological antibody repertoires with indistinguishable features shaped by heavy imprinting, the RIV4 vaccine selectively boosts higher affinity monoclonal antibodies to contemporary strains and elicits greater serum binding potency and breadth, possibly as a consequence of the multivalent structural features of the HA immunogen in this vaccine formulation. Collectively, our findings show advantages of RIV4 vaccines and more generally highlight the benefits of multivalent HA immunogens in promoting higher affinity serum antibody responses. FUNDING: Centers for Disease Control and Prevention, National Institutes of Health, and Bill & Melinda Gates Foundation. | ||||||||||||||||||||||||
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構造の表示
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 | ![]() | 167.4 KB | 表示 | ![]() |
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PDB形式 | ![]() | 124.6 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
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 | ![]() 42839MC 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: 抗体 | 分子量: 24281.080 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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#2: 抗体 | 分子量: 23687.346 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
#3: タンパク質 | 分子量: 65679.719 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 株: H3N2 (A/Singapore/INFIMH-16-0019/2016) / 遺伝子: HA / 発現宿主: ![]() |
Has protein modification | Y |
-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: Structure of UT14 Fab in complex with the head domain of H3 (A/Singapore/INFIMH-16-0019/2016) タイプ: COMPLEX / Entity ID: all / 由来: MULTIPLE SOURCES | ||||||||||||||||||||
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分子量 | 値: 0.113 MDa / 実験値: NO | ||||||||||||||||||||
緩衝液 | pH: 8 / 詳細: 2 mM Tris pH 8.0, 200 mM NaCl, 0.02% NaN3 | ||||||||||||||||||||
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 | 詳細: A total of 3ul of the specimen was applied to Au-flat 1.2/1.3-hole pattern 300 mesh grids (Electron Microscopy Sciences, PA; Cat. AUFT313-50) that had been plasma cleaned in a PELCO easiGlow ...詳細: A total of 3ul of the specimen was applied to Au-flat 1.2/1.3-hole pattern 300 mesh grids (Electron Microscopy Sciences, PA; Cat. AUFT313-50) that had been plasma cleaned in a PELCO easiGlow plasma cleaner (Ted Pella Inc., CA) for 4 min and were plunge-frozen into liquid ethane using Thermo Fisher/FEI Vitrobot Mark IV at 4 celsius under 100% humidity. Excess liquid was blotted for 4-6 sec. グリッドの材料: GOLD / グリッドのタイプ: Au-flat 1.2/1.3 | ||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277 K |
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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 / 最大 デフォーカス(公称値): 2500 nm / 最小 デフォーカス(公称値): 900 nm / Cs: 2.7 mm / C2レンズ絞り径: 70 µm |
撮影 | 電子線照射量: 80 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) 詳細: The calibrated pixel sizes were 0.83A/pixel with a total dose of 80e/A^2. |
電子光学装置 | エネルギーフィルター名称: GIF Bioquantum 詳細: The grids were imaged using a FEI Titan Krios G3 300kV cryo-TEM (Thermo Fisher Scientific, MA) equipped with a K3 direct electron detection camera (Gatan, CA) with a slit width 10eV Gatan ...詳細: The grids were imaged using a FEI Titan Krios G3 300kV cryo-TEM (Thermo Fisher Scientific, MA) equipped with a K3 direct electron detection camera (Gatan, CA) with a slit width 10eV Gatan BioContinuum Imaging Filter. エネルギーフィルタースリット幅: 10 eV |
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解析
EMソフトウェア | 名称: PHENIX / バージョン: 1.21_5207: / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 122281 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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