Table 1. Amino acids encoded in alternative reading frames by adjacent Ala codons.

Species or group	Preferred codon	Alternative sense	Alternative antisense
Cunner	GCT	Leu/Cys	Ser/Ala/Gln
Flounders/snailfishes	GCC	Pro/Arg	Gly/Ala/Arg
Sculpins	GCG	Arg/Gly	Arg/Ala/Pro