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. 2018 Nov;169(9):500-504.
doi: 10.1016/j.resmic.2018.04.004. Epub 2018 May 14.

Extremely halophilic pleomorphic archaeal virus HRPV9 extends the diversity of pleolipoviruses with integrases

Nina S Atanasova  1 , Tatiana A Demina  2 , Sudar N V Krishnam Rajan Shanthi  3 , Hanna M Oksanen  4 , Dennis H Bamford  5
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Free article

Extremely halophilic pleomorphic archaeal virus HRPV9 extends the diversity of pleolipoviruses with integrases

Nina S Atanasova et al. Res Microbiol. 2018 Nov.
Free article

Abstract

Certain pleomorphic archaeal viruses are highly infectious even at saturated salt. These viruses belong to the genus Betapleolipovirus of the recently described archaeal virus family Pleolipoviridae. Pleolipoviruses comprise single-stranded or double-stranded, circular or linear DNA genomes that share countless homologues among various archaeal genetic elements. Here we describe a new extremely halophilic betapleolipovirus, Halorubrum pleomorphic virus 9 (HRPV9), which has an integrase gene. We also identified new genes encoding minor pleolipoviral structural proteins. The studies on HRPV9 enhance our knowledge on pleolipoviruses, especially their reciprocal relatedness and relation to certain archaeal plasmids, proviruses and membrane vesicles.

Keywords: Archaeal virus; Halophilic; Hypersaline environment; Pleomorphic virus.

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