ID 2.3.1.193 DE tRNA(Met) cytidine acetyltransferase. CA acetyl-CoA + ATP + cytidine(34) in elongator tRNA(Met) + H2O = ADP + CA CoA + H(+) + N(4)-acetylcytidine(34) in elongator tRNA(Met) + phosphate. CC -!- The enzyme acetylates the wobble base C34 of the CAU anticodon of CC elongation-specific tRNA(Met). CC -!- Escherichia coli TmcA strictly discriminates elongator tRNA(Met) from CC tRNA(Ile), which is structurally similar and has the same anticodon CC loop, mainly by recognizing the C27-G43 pair in the anticodon stem. CC -!- The enzyme can use GTP in place of ATP for formation of N(4)- CC acetylcytidine. DR A3N059, TMCA_ACTP2 ; Q9YBQ6, TMCA_AERPE ; A8ADB3, TMCA_CITK8 ; DR P76562, TMCA_ECOLI ; Q7VLN6, TMCA_HAEDU ; P44140, TMCA_HAEIN ; DR Q5V5M5, TMCA_HALMA ; D4GW73, TMCA_HALVD ; Q5QY69, TMCA_IDILO ; DR Q8TYZ5, TMCA_METKA ; D5C1K8, TMCA_NITHN ; Q6D7Q9, TMCA_PECAS ; DR C7BGY4, TMCA_PHOAA ; Q9UZ78, TMCA_PYRAB ; Q8ZN74, TMCA_SALTY ; DR Q0T243, TMCA_SHIF8 ; C3N792, TMCA_SULIY ; A1RY08, TMCA_THEPD ; DR Q9KKJ5, TMCA_VIBCH ; A1JL12, TMCA_YERE8 ; D0JFM7, TMCA_YERPD ; //