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Information on EC 2.3.1.193 - tRNAMet cytidine acetyltransferase

for references in articles please use BRENDA:EC2.3.1.193
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IUBMB Comments
The enzyme acetylates the wobble base cytidine34 of the CAU anticodon of elongation-specific tRNAMet. Escherichia coli TmcA strictly discriminates elongator tRNAMet from tRNAIle, which is structurally similar and has the same anticodon loop, mainly by recognizing the C27-G43 pair in the anticodon stem. The enzyme can use GTP in place of ATP for formation of N4-acetylcytidine .
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The expected taxonomic range for this enzyme is: Bacteria, Archaea, Eukaryota
Reaction Schemes
[elongator tRNAMet]-cytidine34
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=
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[elongator tRNAMet]-N4-acetylcytidine34
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+
Synonyms
tmcA, ypfI, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
[elongator tRNAMet]-cytidine34 + ATP + acetyl-CoA + H2O = CoA + [elongator tRNAMet]-N4-acetylcytidine34 + ADP + phosphate
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