Pleolipoviridae, a newly proposed family comprising archaeal pleomorphic viruses with single-stranded or double-stranded DNA genomes

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Pietilä , M K , Roine , E , Sencilo , A , Bamford , D H & Oksanen , H M 2016 , ' Pleolipoviridae, a newly proposed family comprising archaeal pleomorphic viruses with single-stranded or double-stranded DNA genomes ' , Archives of Virology , vol. 161 , no. 1 , pp. 249-256 . https://doi.org/10.1007/s00705-015-2613-x

Title: Pleolipoviridae, a newly proposed family comprising archaeal pleomorphic viruses with single-stranded or double-stranded DNA genomes
Author: Pietilä, Maija K.; Roine, Elina; Sencilo, Ana; Bamford, Dennis H.; Oksanen, Hanna M.
Contributor: University of Helsinki, Department of Food and Nutrition
University of Helsinki, Biosciences
University of Helsinki, Institute of Biotechnology
University of Helsinki, Institute of Biotechnology
Date: 2016-01
Language: eng
Number of pages: 8
Belongs to series: Archives of Virology
ISSN: 0304-8608
URI: http://hdl.handle.net/10138/173762
Abstract: Viruses infecting archaea show a variety of virion morphotypes, and they are currently classified into more than ten viral families or corresponding groups. A pleomorphic virus morphotype is very common among haloarchaeal viruses, and to date, several such viruses have been isolated. Here, we propose the classification of eight such viruses and formation of a new family, Pleolipoviridae (from the Greek pleo for more or many and lipos for lipid), containing three genera, Alpha-, Beta-, and Gammapleolipovirus. The proposal is currently under review by the International Committee on Taxonomy of Viruses (ICTV). The members of the proposed family Pleolipoviridae infect halophilic archaea and are nonlytic. They share structural and genomic features and differ from any other classified virus. The virion of pleolipoviruses is composed of a pleomorphic membrane vesicle enclosing the genome. All pleolipoviruses have two major structural protein species, internal membrane and spike proteins. Although the genomes of the pleolipoviruses are single- or double-stranded, linear or circular DNA molecules, they share the same genome organization and gene synteny and show significant similarity at the amino acid level. The canonical features common to all members of the proposed family Pleolipoviridae show that they are closely related and thus form a new viral family.
Subject: VIRION ARCHITECTURE
HALOVIRUSES
SPINDLE
DOMAINS
HIS1
LIFE
EVOLUTION
CONTAINS
LINEAGE
PHAGE
1183 Plant biology, microbiology, virology
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