The standard genetic code determines that in most species, including viruses, there are 20
amino acids that are coded by 61 codons, while the other three codons are stop triplets …

Protein evolution can be seen as the successive replacement of amino acids by other amino
acids. In general, it is a very slow process which is triggered by point mutations in the …

Can we infer the lifestyle of an organism from the characteristic properties of its genome?
More precisely, what are the relations between easily quantifiable properties from genomic …

Background Correlations between genome composition (in terms of GC content) and usage
of particular codons and amino acids have been widely reported, but poorly explained. We …

We analyzed the nucleotide contents of several completely sequenced genomes, and we
show that nucleotide bias can have a dramatic effect on the amino acid composition of the …

In the work presented, the changes in codon and amino acid contents have been studied as
a function of environmental conditions by comparing pairs of homologs in a group of …

The present-day genetic code, while universal, is not the result of a “frozen accident”, but
has evolved over time. Analysis of amino-acid frequency has recently identified amino acids …

Most investigations of the forces shaping protein evolution have focussed on protein
function. However, cells are typically 50%–75% protein by dry weight, with protein …

Amino acid usage varies from species to species. A previous study has found a universal
trend in amino acid gain and loss in many taxa and a one-way model of amino acid …

Nutrigenomics studies the effects of nutrients on the genome, transcriptome and proteome of
organisms, and here an evolutionary standpoint on this new discipline is presented. It is well …