sharpen map of endoH-treated hemagglutinin A/Hong Kong/1/68
試料
複合体: hemagglutinin A/Hong Kong/1/68 trimer
タンパク質・ペプチド: Hemagglutinin HA1 chain
タンパク質・ペプチド: Hemagglutinin HA2 chain,Green fluorescent protein fusion
リガンド: 2-acetamido-2-deoxy-beta-D-glucopyranose
キーワード
hemagglutinin / glycoprotein / H3 / VIRAL PROTEIN
機能・相同性
機能・相同性情報
viral budding from plasma membrane / bioluminescence / generation of precursor metabolites and energy / 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 ...viral budding from plasma membrane / bioluminescence / generation of precursor metabolites and energy / 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 / virion membrane / membrane 類似検索 - 分子機能
Haemagglutinin, influenzavirus A / Haemagglutinin, HA1 chain, alpha/beta domain superfamily / Haemagglutinin / Haemagglutinin, influenzavirus A/B / Viral capsid/haemagglutinin protein / Green fluorescent protein, GFP / Green fluorescent protein-related / Green fluorescent protein / Green fluorescent protein 類似検索 - ドメイン・相同性
Green fluorescent protein / Hemagglutinin 類似検索 - 構成要素
生物種
Influenza A virus (A型インフルエンザウイルス) / Influenza A virus (strain A/Hong Kong/1/1968 H3N2) (A型インフルエンザウイルス) / Aequorea victoria (オワンクラゲ)
ジャーナル: Nat Commun / 年: 2025 タイトル: Structural and immunological characterization of the H3 influenza hemagglutinin during antigenic drift. 著者: Rebeca de Paiva Froes Rocha / Ilhan Tomris / Charles A Bowman / Emma Stevens / Jason Kantorow / Corinna M Plitt / Weiwei Peng / Svearike Oeverdieck / Thales Galdino Andrade / James A Ferguson ...著者: Rebeca de Paiva Froes Rocha / Ilhan Tomris / Charles A Bowman / Emma Stevens / Jason Kantorow / Corinna M Plitt / Weiwei Peng / Svearike Oeverdieck / Thales Galdino Andrade / James A Ferguson / Diana D Jung / Rafael Elias Marques / Sander Herfst / Joost Snijder / Srirupa Chakraborty / Alba Torrents de la Peña / Zachary T Berndsen / Robert P de Vries / Andrew B Ward / 要旨: The quest for a universal influenza vaccine holds great promise for mitigating the global burden of influenza-related morbidity and mortality. However, challenges persist in identifying conserved ...The quest for a universal influenza vaccine holds great promise for mitigating the global burden of influenza-related morbidity and mortality. However, challenges persist in identifying conserved epitopes capable of eliciting robust and durable immune responses. In this study, we explore the influence of glycan evolution on H3 hemagglutinin from 1968 to present day and its impacts on protein structure, antigenicity and immunogenicity by using computational, biochemical and biophysical techniques. Structural characterization of HK/68 and Sing/16 by cryo-electron microscopy shows that while HK/68 is resistant to enzymatic deglycosylation, removal of glycans destabilizes the hyperglycosylated head and membrane-proximal region in Sing/16. Furthermore, the appearance of glycans in Sing/16 hemagglutinin head domain shifts the polyclonal immune response upon vaccination to target the esterase and stem. These insights expand our understanding of glycans beyond their role in protein folding and highlight the interplay among glycan integration and immune recognition to design a universal influenza vaccine.