- EMDB-47799: Polyclonal immune complex of Fab from pooled Ferret sera at day 2... -
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IDまたはキーワード:
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基本情報
登録情報
データベース: EMDB / ID: EMD-47799
タイトル
Polyclonal immune complex of Fab from pooled Ferret sera at day 28 binding B/Washington NA after infection with B/Washington/02/2019
マップデータ
Negative stain global refinement of particle stack used to sort polyclonal responses to B/Washington NA from pooled ferret sera at day 28 after infection with B/Washington/02/2019
試料
複合体: Polyclonal immune complex of Fab from pooled Ferret sera at day 28 binding B/Washington NA after infection with B/Washington/02/2019
キーワード
influenza / hemagglutinin / Flu B / polyclonal / complex / fab complex / VIRAL PROTEIN
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)
75N93019C00051
米国
引用
ジャーナル: Sci Adv / 年: 2025 タイトル: Neuraminidase-specific antibodies drive differential cross-protection between contemporary FLUBV lineages. 著者: Caroline K Page / Justin D Shepard / Sean D Ray / James A Ferguson / Alesandra J Rodriguez / Julianna Han / Joel C Jacob / Dawne K Rowe-Haas / Jasmine Y Akinpelu / Lilach M Friedman / Tomer ...著者: Caroline K Page / Justin D Shepard / Sean D Ray / James A Ferguson / Alesandra J Rodriguez / Julianna Han / Joel C Jacob / Dawne K Rowe-Haas / Jasmine Y Akinpelu / Lilach M Friedman / Tomer Hertz / Andrew B Ward / Stephen M Tompkins / 要旨: The two influenza B virus (FLUBV) lineages have continuously diverged from each other since the 1980s, with recent (post-2015) viruses exhibiting accelerated evolutionary rates. Emerging data from ...The two influenza B virus (FLUBV) lineages have continuously diverged from each other since the 1980s, with recent (post-2015) viruses exhibiting accelerated evolutionary rates. Emerging data from human studies and epidemiological models suggest that increased divergence in contemporary viruses may drive differential cross-protection, where infection with Yamagata lineage viruses provides limited immunity against Victoria lineage viruses. Here, we developed animal models to investigate the mechanisms behind asymmetric cross-protection between contemporary FLUBV lineages. Our results show that contemporary Victoria immunity provides robust cross-protection against the Yamagata lineage, whereas Yamagata immunity offers limited protection against the Victoria lineage. This differential cross-protection is driven by Victoria-elicited neuraminidase (NA)-specific antibodies, which show cross-lineage reactivity, unlike those from Yamagata infections. These findings identify a phenomenon in contemporary FLUBV that may help explain the recent disappearance of the Yamagata lineage from circulation, highlighting the crucial role of targeting NA in vaccination strategies to enhance cross-lineage FLUBV protection.
ダウンロード / ファイル: emd_47799.map.gz / 形式: CCP4 / 大きさ: 34.3 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
注釈
Negative stain global refinement of particle stack used to sort polyclonal responses to B/Washington NA from pooled ferret sera at day 28 after infection with B/Washington/02/2019
Negative stain map of polyclonal Fab binding the B/Washington NA corner epitope from pooled ferret sera at day 28 after infection with B/Washington/02/2019
Negative stain half map A for global refinement of particle stack used to sort polyclonal responses to B/Washington NA from pooled ferret sera at day 28 after infection with B/Washington/02/2019
Negative stain half map B for global refinement of particle stack used to sort polyclonal responses to B/Washington NA from pooled ferret sera at day 28 after infection with B/Washington/02/2019
全体 : Polyclonal immune complex of Fab from pooled Ferret sera at day 2...
全体
名称: Polyclonal immune complex of Fab from pooled Ferret sera at day 28 binding B/Washington NA after infection with B/Washington/02/2019
要素
複合体: Polyclonal immune complex of Fab from pooled Ferret sera at day 28 binding B/Washington NA after infection with B/Washington/02/2019
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超分子 #1: Polyclonal immune complex of Fab from pooled Ferret sera at day 2...
超分子
名称: Polyclonal immune complex of Fab from pooled Ferret sera at day 28 binding B/Washington NA after infection with B/Washington/02/2019 タイプ: complex / ID: 1 / 親要素: 0
由来(天然)
生物種: Mustela putorius furo (ヨーロッパケナガイタチ)
分子量
理論値: 280 KDa
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実験情報
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構造解析
手法
ネガティブ染色法
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
濃度
0.015 mg/mL
緩衝液
pH: 7.4
染色
タイプ: NEGATIVE / 材質: 2% w/v uranyl formate
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電子顕微鏡法
顕微鏡
TFS TALOS F200C
撮影
フィルム・検出器のモデル: FEI CETA (4k x 4k) / 平均電子線量: 25.0 e/Å2
電子線
加速電圧: 200 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: DARK FIELD / 最大 デフォーカス(公称値): 2.0 µm / 最小 デフォーカス(公称値): 0.5 µm
試料ステージ
試料ホルダーモデル: SIDE ENTRY, EUCENTRIC / ホルダー冷却材: NITROGEN