Abstract
Volatilities of codons provide us a new way to characterize codons. In this article, we propose a new method measuring volatilities of codons base on the physics–chemical distances between amino acids and mutation frequencies between codons, then by which, we give a new graphical representation scheme for codon sequences. Finally, in order to show the effectiveness of our scheme, we analyze similarity among the coding codon sequences of exon 1 of beta-globin gene of human and those of other 10 species, find the result is consistent with those shown in the literature.
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