- EMDB-21654: Focused asymmetric reconstruction of the hexameric icosahedral 2-... -
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基本情報
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データベース: EMDB / ID: EMD-21654
タイトル
Focused asymmetric reconstruction of the hexameric icosahedral 2-fold region of a Heptatis B virus T=4 capsid in complex with the antiviral DBT1
マップデータ
The sample is a Hepatitis B virus capsid in complex with and antiviral molecule. This map is a focused asymmetric reconstruction of a hexamer of subunits, which surround an icosahedral 2-fold axis.
試料
ウイルス: Hepatitis B virus genotype D subtype adw (ウイルス)
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)
AI067417
米国
引用
ジャーナル: ACS Chem Biol / 年: 2020 タイトル: Local Stabilization of Subunit-Subunit Contacts Causes Global Destabilization of Hepatitis B Virus Capsids. 著者: Christopher John Schlicksup / Patrick Laughlin / Steven Dunkelbarger / Joseph Che-Yen Wang / Adam Zlotnick / 要旨: Development of antiviral molecules that bind virion is a strategy that remains in its infancy, and the details of their mechanisms are poorly understood. Here we investigate the behavior of DBT1, a ...Development of antiviral molecules that bind virion is a strategy that remains in its infancy, and the details of their mechanisms are poorly understood. Here we investigate the behavior of DBT1, a dibenzothiazepine that specifically interacts with the capsid protein of hepatitis B virus (HBV). We found that DBT1 stabilizes protein-protein interaction, accelerates capsid assembly, and can induce formation of aberrant particles. Paradoxically, DBT1 can cause preformed capsids to dissociate. These activities may lead to (i) assembly of empty and defective capsids, inhibiting formation of new virus, and (ii) disruption of mature viruses, which are metastable, to inhibit new infection. Using cryo-electron microscopy, we observed that DBT1 led to asymmetric capsids where well-defined DBT1 density was bound at all intersubunit contacts. These results suggest that DBT1 can support assembly by increasing buried surface area but induce disassembly of metastable capsids by favoring asymmetry to induce structural defects.
ダウンロード / ファイル: emd_21654.map.gz / 形式: CCP4 / 大きさ: 52.7 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
注釈
The sample is a Hepatitis B virus capsid in complex with and antiviral molecule. This map is a focused asymmetric reconstruction of a hexamer of subunits, which surround an icosahedral 2-fold axis.