. "\"Catalysis of the ligation of lysine onto the cytidine residue present at the wobble position (usually position 34) of an AUA-specific isoleucine tRNA, to form the derivative lysidine. This modification converts both the codon specificity of tRNA(Ile) from AUG to AUA and its amino acid specificity from methionine to isoleucine.\" [PMID:14527414]" . . "tRNA(Ile)-lysidine synthase activity" . "tRNA(Ile)-2-lysyl-cytidine synthase activity" . "tRNA(Ile)-lysidine synthetase activity" . "EC:6.3.4.-" . .