Author: Bahir, Iris; Fromer, Menachem; Prat, Yosef; Linial, Michal
Title: Viral adaptation to host: a proteome-based analysis of codon usage and amino acid preferences Document date: 2009_10_13
ID: 629kl04a_58
Snippet: For each group of (virus or host) genes, codon usage frequencies were independently calculated for each of the amino acids. For each of the 18 degenerately encoded amino acids, the empirical frequencies of its corresponding codons were counted and normalized to sum to 1. The other two amino acids tryptophan (W) and methionine (M) each have a single codon and were not included in the analysis. Thus, each of the 59 redundant codons that account for.....
Document: For each group of (virus or host) genes, codon usage frequencies were independently calculated for each of the amino acids. For each of the 18 degenerately encoded amino acids, the empirical frequencies of its corresponding codons were counted and normalized to sum to 1. The other two amino acids tryptophan (W) and methionine (M) each have a single codon and were not included in the analysis. Thus, each of the 59 redundant codons that account for these 18 amino acids were assigned a number between 0 and 1. The GC content of each virushost pair was also calculated independently and was assigned a number between 0 and 1.
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