Amino acid | Optimal codon | D. willistoni | Exceptions/notes |
---|---|---|---|
Arg | CGC | CGT | Â |
Leu | CTG | TTG | Â |
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 | --- | Â |
Gly | GGC | GGT | Â |
Val | GTG | GTG/GTC | Â |
Lys | AAG | --- | Â |
Asn | AAC | AAT | Â |
Gln | CAG | --- | Â |
His | CAC | No preference | 10% highest RSCU identifies CAT in Dgri |
Glu | GAG | --- | Â |
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 | Â |
Phe | TTC | --- | 10% highest RSCU identifies no preference in subgenus Drosophila |
Ile | ATC | ATT | 10% highest RCSU weakly identifies ATT in subgenus Drosophila |