Skip to main content

Table 1 Summary of preferred codons for each amino acid for 11 species, with differences noted for D. willistoni.

From: Codon usage in twelve species of Drosophila

Amino acid Optimal codon D. willistoni Exceptions/notes
Arg CGC CGT  
Leu CTG TTG  
Ser TCC --- Dpse about equal TCC/AGC preference; Dper, and subgenus Drosophila prefers AGC
Thr ACC --- 10% highest RSCU identifies ACG in Dmoj and Dvir; ACA in Dgri
Pro CCC CCA 10% highest RSCU identifies CCG in Dvir
Ala GCC ---  
Gly GGC GGT  
Val GTG GTG/GTC  
Lys AAG ---  
Asn AAC AAT  
Gln CAG ---  
His CAC No preference 10% highest RSCU identifies CAT in Dgri
Glu GAG ---  
Asp GAC GAT Very weak bias, methods differ somewhat
Tyr TAC No preference 10% highest RSCU weakly identifies TAT in subgenus Drosophila
Cys TGC No preference  
Phe TTC --- 10% highest RSCU identifies no preference in subgenus Drosophila
Ile ATC ATT 10% highest RCSU weakly identifies ATT in subgenus Drosophila