Shields, D C Synonymous codon usage in Bacillus subtilis reflects both translational selection and mutational biases. [electronic resource] - Nucleic acids research Oct 1987 - 8023-40 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0305-1048 Standard No.: 10.1093/nar/15.19.8023 doi Subjects--Topical Terms: Bacillus subtilis--geneticsCodonEscherichia coli--geneticsGenes, BacterialGenes, FungalMutationProtein BiosynthesisRNA, MessengerSaccharomyces cerevisiae--geneticsSelection, GeneticSpecies Specificity