Tobacco Mosaic Satellite Virus

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Tobacco Mosaic Satellite Virus
Satellite tobacco mosaic virus crystal.jpg

Tobacco mosaic satellite virus crystals grown in space.
They are approx. 1.5 mm long and approx. 30 times larger
than samples grown on earth.

Systematics
Classification : Satellites
Area : Riboviria
Empire : unclassified
Phylum : unclassified
Class : unclassified
Order : unclassified
Family : unclassified
Genre : Virtovirus
Type : Tobacco virtovirus 1
Subspecies : Tobacco Mosaic Satellite Virus
Taxonomic characteristics
Genome : (+) ssRNA
Baltimore : Group 4
Symmetry : icosahedral
Scientific name
Satellite tobacco mosaic virus
Short name
STMV or STNV
Left

The tobacco mosaic satellite virus ( syn. Tobacco necrosis satellite virus , English Tobacco mosaic satellite virus , STMV , syn. Tobacco necrosis satellite virus , STNV ) is a satellite virus species Tobacco virtovirus 1 , genus Virtovirus , which first on blue-green tobacco (also tree or bush tobacco , Nicotiana glauca , Fam. Solanaceae ) from Southern California (USA) has been reported. Its genome consists of a linear single- stranded RNA with positive polarity .

The tobacco mosaic satellite virus is a small icosahedral plant virus having the symptoms of an infection by tobacco mosaic virus ( English Tobacco mosaic virus , TMV, Fam. Virgaviridae , genus Tobamovirus worse). Satellite viruses are among the smallest possible replicating units in nature. They do this by using both the host cell and a host virus (in this case TMV) to get the machinery needed to multiply. The entire STMV virion (virus particle) consists of 60 identical copies of a single protein that make up the viral capsid , and a single-stranded RNA genome of 1063 nucleotides that codes for the capsid and another protein of unknown function .

literature

Individual evidence

  1. Alexander McPherson, Lawrence James Delucas: Microgravity protein crystallization . In: Npj Microgravity . 1, 2015, p. 15010. doi : 10.1038 / npjmgrav.2015.10 .
  2. JA Dodds: Satellite Tobacco Mosaic Virus . In: Annual Review of Phytopathology . 36, 1998, pp. 295-310. doi : 10.1146 / annurev.phyto.36.1.295 . PMID 15012502 .
  3. Molecular Dynamics of STMV . Beckman Institute for Advanced Science and Technology, University of Illinois.