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. 1978 Dec 29;12(2):113-9.
doi: 10.1007/BF01733262.

Bacteriophage MS2 RNA: a correlation between the stability of the codon: anticodon interaction and the choice of code words

H Grosjean, D Sankoff, W M Jou, W Fiers, R J Cedergren

Bacteriophage MS2 RNA: a correlation between the stability of the codon: anticodon interaction and the choice of code words

H Grosjean et al. J Mol Evol. .

Abstract

The non-random distribution of degenerate code words in Bacteriophage MS2 RNA can be explained partially by considerations of the stability of the codon-anticodon complex in prokaryotic systems. Supporting this hypothesis we note that wobble codons are positively selected in codons having G and/or C in the first two positions. In contrast, wobble codons are statistically less likely in codons composed of A and U in the first two positions. Analyses of nucleotides adjacent to 5' and 3' ends of codons indicate a nonrandom distribution as well. It is thus likely that some elements of RNA evolution are independent of the structural needs of the RNA itself and of the translated protein product.

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