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-Structure paper
タイトル | The structure of avian polyomavirus reveals variably sized capsids, non-conserved inter-capsomere interactions, and a possible location of the minor capsid protein VP4. |
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ジャーナル・号・ページ | Virology, Vol. 411, Issue 1, Page 142-152, Year 2011 |
掲載日 | 2011年3月1日 |
著者 | Peter S Shen / Dirk Enderlein / Christian D S Nelson / Weston S Carter / Masaaki Kawano / Li Xing / Robert D Swenson / Norman H Olson / Timothy S Baker / R Holland Cheng / Walter J Atwood / Reimar Johne / David M Belnap / |
PubMed 要旨 | Avian polyomavirus (APV) causes a fatal, multi-organ disease among several bird species. Using cryogenic electron microscopy and other biochemical techniques, we investigated the structure of APV and ...Avian polyomavirus (APV) causes a fatal, multi-organ disease among several bird species. Using cryogenic electron microscopy and other biochemical techniques, we investigated the structure of APV and compared it to that of mammalian polyomaviruses, particularly JC polyomavirus and simian virus 40. The structure of the pentameric major capsid protein (VP1) is mostly conserved; however, APV VP1 has a unique, truncated C-terminus that eliminates an intercapsomere-connecting β-hairpin observed in other polyomaviruses. We postulate that the terminal β-hairpin locks other polyomavirus capsids in a stable conformation and that absence of the hairpin leads to the observed capsid size variation in APV. Plug-like density features were observed at the base of the VP1 pentamers, consistent with the known location of minor capsid proteins VP2 and VP3. However, the plug density is more prominent in APV and may include VP4, a minor capsid protein unique to bird polyomaviruses. |
リンク | Virology / PubMed:21239031 / PubMed Central |
手法 | EM (単粒子) |
解像度 | 11.3 - 23.0 Å |
構造データ | EMDB-5180: The structure of avian polyomavirus treated with 250 mM L-arginine EMDB-5181: EMDB-5182: EMDB-5183: EMDB-5184: EMDB-5187: |
由来 |
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キーワード | VIRUS / avian / polyomavirus / APV / icosahedral virus |