National Institutes of Health/National Institute Of Allergy and Infectious Diseases
AI011219
米国
引用
ジャーナル: Proc Natl Acad Sci U S A / 年: 2016 タイトル: Structure of faustovirus, a large dsDNA virus. 著者: Thomas Klose / Dorine G Reteno / Samia Benamar / Adam Hollerbach / Philippe Colson / Bernard La Scola / Michael G Rossmann / 要旨: Many viruses protect their genome with a combination of a protein shell with or without a membrane layer. Here we describe the structure of faustovirus, the first DNA virus (to our knowledge) that ...Many viruses protect their genome with a combination of a protein shell with or without a membrane layer. Here we describe the structure of faustovirus, the first DNA virus (to our knowledge) that has been found to use two protein shells to encapsidate and protect its genome. The crystal structure of the major capsid protein, in combination with cryo-electron microscopy structures of two different maturation stages of the virus, shows that the outer virus shell is composed of a double jelly-roll protein that can be found in many double-stranded DNA viruses. The structure of the repeating hexameric unit of the inner shell is different from all other known capsid proteins. In addition to the unique architecture, the region of the genome that encodes the major capsid protein stretches over 17,000 bp and contains a large number of introns and exons. This complexity might help the virus to rapidly adapt to new environments or hosts.
名称: Faustovirus / タイプ: virus / ID: 1 / 親要素: 0 詳細: Virus was isolated from Vermamoeba vermiformis and the inner shell was purified using density centrifugation. NCBI-ID: 1477405 / 生物種: Faustovirus / ウイルスタイプ: VIRION / ウイルス・単離状態: SPECIES / ウイルス・エンベロープ: No / ウイルス・中空状態: No