Published Online: 15 JUL 2006
Copyright © 2001 John Wiley & Sons, Ltd. All rights reserved.
How to Cite
Moriyama, E. N. 2006. Codon Usage. eLS. .
- Published Online: 15 JUL 2006
Genetic codes have degeneracy; that is, most amino acids (18 out of 20 in the universal genetic code) are encoded by more than one codon. Codons encoding the same amino acid are called synonymous codons. In both prokaryotic and eukaryotic genes, the synonymous codons are not used with equal frequencies.
- synonymous codon;
- translational selection;
- mutation bias;
- tRNA abundance;
- gene expression