作者
Maija K Pietilä, Pasi Laurinmäki, Daniel A Russell, Ching-Chung Ko, Deborah Jacobs-Sera, Roger W Hendrix, Dennis H Bamford, Sarah J Butcher
发表日期
2013/6/25
期刊
Proceedings of the National Academy of Sciences
卷号
110
期号
26
页码范围
10604-10609
出版商
National Academy of Sciences
简介
It has been proposed that viruses can be divided into a small number of structure-based viral lineages. One of these lineages is exemplified by bacterial virus Hong Kong 97 (HK97), which represents the head-tailed dsDNA bacteriophages. Seemingly similar viruses also infect archaea. Here we demonstrate using genomic analysis, electron cryomicroscopy, and image reconstruction that the major coat protein fold of newly isolated archaeal Haloarcula sinaiiensis tailed virus 1 has the canonical coat protein fold of HK97. Although it has been anticipated previously, this is physical evidence that bacterial and archaeal head-tailed viruses share a common architectural principle. The HK97-like fold has previously been recognized also in herpesviruses, and this study expands the HK97-like lineage to viruses from all three domains of life. This is only the second established lineage to include archaeal, bacterial, and …
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MK Pietilä, P Laurinmäki, DA Russell, CC Ko… - Proceedings of the National Academy of Sciences, 2013