“Metaviridae”的意思、由来-开放百科全书

词条

Metaviridae

释义

Taxonomy
References
External links

{{Virusbox
| taxon = Metaviridae
| subdivision_ranks = Genera
| subdivision =Chromovirus
Errantivirus
Metavirus

}}

Metaviridae are a family of viruses which exist as retrotransposons in a eukaryotic host’s genome. They are closely related to retroviruses: Metaviridae share many genomic elements with retroviruses, including length, organization, and genes themselves. This includes genes that encode reverse transcriptase, integrase, and capsid proteins. The reverse transcriptase and integrase proteins are needed for the retrotransposon activity of the virus. In some cases, virus-like particles can be formed from capsid proteins.

Some assembled Metaviridae particles can penetrate and infect previously uninfected cells. An example of this is the gypsy, a retroelement found in the Drosophila melanogaster genome. The ability to infect other cells in determined by the presence of the retroviral env genes which encode coat proteins.

Taxonomy

Metaviridae are split into the following genera:

Genus Metavirus; type species: Saccharomyces cerevisiae Ty3 virus
Genus Errantivirus; type species: Drosophila melanogaster gypsy virus

Families Metaviridae, Belpaoviridae, Pseudoviridae, Retroviridae, and Caulimoviridae constitute the order Ortervirales.^[1]

References

1. ^{{cite journal|last1=Krupovic|first1=M|last2=Blomberg|first2=J|last3=Coffin|first3=JM|last4=Dasgupta|first4=I|last5=Fan|first5=H|last6=Geering|first6=AD|last7=Gifford|first7=R|last8=Harrach|first8=B|last9=Hull|first9=R|last10=Johnson|first10=W|last11=Kreuze|first11=JF|last12=Lindemann|first12=D|last13=Llorens|first13=C|last14=Lockhart|first14=B|last15=Mayer|first15=J|last16=Muller|first16=E|last17=Olszewski|first17=N|last18=Pappu|first18=HR|last19=Pooggin|first19=M|last20=Richert-Pöggeler|first20=KR|last21=Sabanadzovic|first21=S|last22=Sanfaçon|first22=H|last23=Schoelz|first23=JE|last24=Seal|first24=S|last25=Stavolone|first25=L|last26=Stoye|first26=JP|last27=Teycheney|first27=PY|last28=Tristem|first28=M|last29=Koonin|first29=EV|last30=Kuhn|first30=JH|title=Ortervirales: A new viral order unifying five families of reverse-transcribing viruses.|journal=Journal of Virology|date=4 April 2018|doi=10.1128/JVI.00515-18|pmid=29618642}}

External links

{{cite web |title=Metaviridae |work=NCBI Taxonomy Browser |url=https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=186665 |id=186665}}
[https://www.ncbi.nlm.nih.gov/ICTVdb/Ictv/fs_metav.htm ICTVdB Index of Viruses]
Descriptions of Plant Viruses

3 : Ortervirales|RNA reverse-transcribing viruses|Virus families

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