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Togavirus virion is ____________.
an icosahedron with a spherical envelope.
Togavirus's envelope is characterised by ________.
Fringe projections, and glycoproteins arranged with icosahedral symmetry
Togavirus's genome is _________.
Linear (+) ssRNA
Togavirus's genome features include ________.
methylated 5' cap and a poly A tail with similiar, but opposite arrangement of flavi.
Togavirus's genome is NS prot are translated __________.
directly from the genome.
Togavirus's structural proteins are translated _________.
from subgenomic mRNA
Togavirus diseases include _______.
Rubivirus = Rubella (causes fetal abnormalities)
Togavirus's distinct characteristics include ____, ______, _______, ________.
- Subgenomic mRNA codes virion structural proteins
- Structural proteins are Tnl as a polyprotein that undergoes cleavage and membrane association
- RNA replication is associated with the cytoplasmic membrane
- Lipid envelope derives from the plasma membrane
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