遗传密码 Second letter A G 0UU UAU UGU U UUC Phenyl alanine UAC Tyrosine UGC Cysteine UUA UAA Stop codon UGA Stop codon A UUG eucine UAG Stop codon UGG Tryptophan G CUU CCU CAU CGU 0 CUC CAC Histidine CGC eucine CCC Proline CGA Arginine CAA CAG Glutamine CGG G AUU ACU AAU AGU AUC Isoleucine AAC Asparagine AGC Serine ACC C AUA Threonine Methionine: ACA AAA AGA AUG initiation ACG AAG Lysine AGG Arginine codon G GUU GCU 贺 Aspartic GGU GUC acid GGC G GUA Valine Alanine GGA Glycine GUG GCG Glutamic GAG GGG acid G遗传密码