| Primary Identifier | IPR013562 | Type | Domain |
| Short Name | TmcA_N |
| description | This entry represents a domain found in the N terminus of the bacterial tRNA(Met) cytidine acetyltransferase TmcA. TmcA catalyses the formation of N(4)-acetylcytidine (ac4C) at the wobble position of tRNA(Met), by using acetyl-CoA as an acetyl donor and either ATP or GTP []. This modification is thought to ensure precise recognition of the AUG codon by strengthening C-G base-pair interaction and also prevent misrecognition of the near cognate AUA codon []. This domain can also be found in mammalian N-acetyltransferase 10 (NAT10) and fungal protein Kre33. Kre33 and NAT10 are RNA cytosine acetyltransferases with specificity toward both 18S rRNA and tRNAs [, ]. |
