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Morphology and genome organization of the virus PSV of the hyperthermophilic archaeal genera Pyrobaculum and Thermoproteus: a novel virus family, the Globuloviridae

Häring, Monika ; Peng, Xu ; Brügger, Kim ; Rachel, Reinhard ; Stetter, Karl Otto ; Garrett, Roger A. ; Prangishvili, David


A novel virus, termed Pyrobaculum spherical virus (PSV), is described that infects anaerobic hyperthermophilic archaea of the genera Pyrobaculum and Thermoproteus. Spherical enveloped virions, about 100 nm in diameter, contain a major multimeric 33-kDa protein and host-derived lipids. A viral envelope encases a superhelical nucleoprotein core containing linear double-stranded DNA. The PSV ...


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