Abstract
The family Clavaviridae includes viruses that replicate in hyperthermophilic archaea from the genus Aeropyrum. The non-enveloped rigid virions are rod-shaped, with dimensions of about 143×16 nm, and have terminal cap structures, one of which is pointed and carries short fibres, while the other is rounded. The virion displays helical symmetry and is constructed from a single major α-helical protein, which is heavily glycosylated, and several minor capsid proteins. The 5278 bp, circular, double-stranded DNA genome of Aeropyrum pernix bacilliform virus 1 is packed inside the virion as a left-handed superhelix. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the family Clavaviridae, which is available at www.ictv.global/report/clavaviridae.
Highlights
The family Clavaviridae includes viruses that replicate in hyperthermophilic archaea from the genus Aeropyrum
The cap structures likely play a role in DNA packaging and host recognition
The virion architecture and manner of DNA packaging are unprecedented among viruses of bacteria and eukaryotes [3, 4]
Summary
The family Clavaviridae includes viruses that replicate in hyperthermophilic archaea from the genus Aeropyrum. Typical member: Virion Genome Replication Translation Host range Taxonomy Aeropyrum pernix bacilliform virus 1 (AB537968), species Aeropyrum pernix bacilliform virus 1, genus Clavavirus Rigid bacilliform particles, 143 nm long and 16 nm in diameter, with one end pointed and the other one rounded Circular double-stranded DNA of 5278 bp Non-lytic, chronic infection Not characterized Hyperthermophilic archaea from the genus Aeropyrum Single genus with a single species Virions of Aeropyrum pernix bacilliform virus 1 are nonenveloped, rigid, rod-shaped particles, with dimensions of about 143×16 nm, terminating with cap structures (Table 1, Fig. 1) [1, 2].
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