taking advantage of the absence of lysine ( codon , aag ) in the proteins , we determined the misincorporation of this amino acid into protamines in a cell-free translation system consisting of mouse liver ribosomes , protamine mrna , [ 3h ] lysine , [ 14c ] arginine , and seven unlabeled amino acids : ile , val , ser , pro , ala , gly , and met .
C0002520
amino acids
C0017890
gly