tRNA(Met) cytidine acetyltransferase TmcA
UniProtKB accession: P76562
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Go to UniProtKB: P76562
UniProtKB description: Catalyzes the formation of N(4)-acetylcytidine (ac(4)C) at the wobble position of tRNA(Met), by using acetyl-CoA as an acetyl donor and ATP (or GTP). It recognizes the wobble base of tRNA(Met), thus distinguishing between tRNA(Met) and the structurally similar tRNA(Ile2) (PubMed:18668122, PubMed:19322199). Could use an RNA helicase motor driven by ATP hydrolysis to deliver the wobble base of tRNA(Met) to the acetyltransferase domain of TmcA (Probable).
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