Satellite tobacco mosaic virus

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Satellite Tobacco Mosaic Virus
Virus classification
Group: Group IV ((+)ssRNA)
Order: Unassigned
Family: Unassigned
Genus: Unassigned
Species: Satellite Tobacco Mosaic Virus

The Satellite Tobacco Mosaic Virus or Tobacco mosaic satellivirus is a satellite virus first reported in Nicotiana glauca from southern California, U.S.A. by Valverde and Dodds. Its genome consists of linear positive-sense single-stranded RNA. (1986)[1]

"Satellite Tobacco Mosaic Virus is a small, icosahedral plant virus which worsens the symptoms of infection by Tobacco Mosaic Virus (TMV). Satellite viruses are some of the smallest possible reproducing units in nature; they achieve this by relying on both the host cell and a host virus (in this case, TMV) for the machinery necessary for them to reproduce. The entire STMV particle consists of 60 identical copies of a single protein that make up the viral capsid (coating), and a 1063-nucleotide single-stranded RNA genome which codes for the capsid and one other protein of unknown function."[2]

"Klaus Schulten at the University of Illinois, Urbana, and his colleagues built a computer model of the satellite tobacco mosaic virus, a tiny spherical package of RNA. [...] Running on a machine at the National Center for Supercomputing Applications, Urbana, the program calculated how each of the million or so atoms in the virus and a surrounding drop of salt water was interacting with almost every other atom every femtosecond, or millionth of a billionth of a second. [...] The fleeting simulation, published in this month's Structure, reveals that although the virus looks symmetrical it pulses in and out asymmetrically, as if it were breathing."[3]

Sources[edit]

  1. ^ Dodds, J. A. (1998). "Satellite Tobacco Mosaic Virus". Annual Review of Phytopathology 36: 295–310. doi:10.1146/annurev.phyto.36.1.295. PMID 15012502.  edit
  2. ^ "Molecular Dynamics of STMV". Beckman Institute for Advanced Science and Technology, University of Illinois. 
  3. ^ Pearson, Helen (March 2006). "Supercomputer builds a virus". Nature. doi:10.1038/news060313-4.