Abstract
The genomic RNA of tobacco vein mottling virus (TVMV) was translated in a cell-free system derived from rabbit reticulocytes. Antisera against TVMV coat protein, TVMV cylindrical inclusions, the helper component required for aphid transmission of TVMV, and the 49- and 54-kd nuclear inclusion proteins of tobacco etch virus (TEV) were used to characterize the translational products. Each of the five antisera precipitated a distinctive pattern of polypeptides. Specificity of immunoprecipitation was shown by competing with the various proteins to which antisera were raised and by sequentially precipitating with two different antisera. These experiments showed that the five antisera define five different nonoverlapping regions of the TVMV genome.
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