Nucleotide sequence of the 3′-terminal tRNA-like structure In barley stripe mosaic virus genome

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Abstract
This paper describes the sequence of 257 nucleotides from the 3' end of RNA 2 of barley stripe mosaic virus ( BSMV , strain Argentina Mild) including an internal oligo (A) tract localized at a distance of 236 nucleotides from the 3' end, and the 3' terminal tRNA-like structure accepting tyrosine. This sequence is shown to be the same with RNAs 1,2 and 3 of another BSMV strain, Norwich , for at least the first 106 nucleotides from the 3' end. The 3' extremity of BSMV RNA bears some resemblance to tRNATyr from yeast in its primary structure. The possible secondary structures of the tRNA-like sequence in BSMV genome are discussed.