1887

Abstract

SUMMARY

In wheat germ extracts and reticulocyte lysates the genome RNA molecules of tomato black ring virus (TBRV), RNA-1 (mol. wt. 2.8 × 10) and RNA-2 (mol. wt. 1.6 × 10), were translated into products of maximum mol. wt. 2.2 × 10 and 1.6 × 10, respectively. These products represent about 80% and 100% of the coding capacity of the two RNA species. The 1.6 × 10 mol. wt. polypeptide reacted with antiserum to TBRV particles but the translation products of RNA-1 did not; this is additional evidence that RNA-2 contains the coat protein cistron.

Satellite RNA molecules (RNA-3, mol. wt. 4.8 × 10) associated with strain S of TBRV, like those associated with strain G, were translated in wheat germ extracts into a polypeptide of mol. wt. 4.8 × 10; this did not react with TBRV antiserum. Protease digestion released peptides from the translation product of strain S RNA-3 which were different from those released from the translation product of strain G RNA-3, suggesting that the two kinds of satellite RNA molecules differ in base sequence.

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1980-02-01
2022-07-02
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