doi: 10.1007/BF01733262.
Bacteriophage MS2 RNA: a correlation between the stability of the codon: anticodon interaction and the choice of code words
- PMID: 368346
- DOI: 10.1007/BF01733262
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Bacteriophage MS2 RNA: a correlation between the stability of the codon: anticodon interaction and the choice of code words
J Mol Evol.
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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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