9J3C | pdb_00009j3c

Cryo-EM structure of NAT10 with Co-enzyme A


Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF13725Possible tRNA binding domain (tRNA_bind_2)Possible tRNA binding domain- Family
A, B
PF08351tRNA(Met) cytidine acetyltransferase TmcA, N-terminal (TmcA_N)tRNA(Met) cytidine acetyltransferase TmcA, N-terminalThis domain of unknown function is often found at 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 acet ...This domain of unknown function is often found at 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 [1,2,5]. 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 [1]. This domain is also 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 and contain additional putative nuclear and nucleolar localization signals (NLS and NoLS respectively) [3,4,5].
Domain
A, B
PF13718GNAT acetyltransferase 2 (GNAT_acetyltr_2)GNAT acetyltransferase 2- Family
A, B
PF05127RNA cytidine acetyltransferase NAT10/TcmA, helicase domain (NAT10_TcmA_helicase)RNA cytidine acetyltransferase NAT10/TcmA, helicase domainThis domain contains a P-loop (Walker A) motif, suggesting that it has ATPase activity, and a Walker B motif. It si found in RNA cytidine acetyltransferase NAT10 from eukaryotes and tRNA(Met) cytidine acetyltransferase TcmA from prokaryotes. NAT10 ca ...This domain contains a P-loop (Walker A) motif, suggesting that it has ATPase activity, and a Walker B motif. It si found in RNA cytidine acetyltransferase NAT10 from eukaryotes and tRNA(Met) cytidine acetyltransferase TcmA from prokaryotes. NAT10 catalyses the formation of N4-acetylcytidine (ac4C) modification on mRNAs, 18S rRNA and tRNAs [1-4]. In tRNA(Met) cytidine acetyltransferase (TmcA) it may function as an RNA helicase motor (driven by ATP hydrolysis) which delivers the wobble base to the active centre of the GCN5-related N-acetyltransferase (GNAT) domain [1].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
RNA cytidine acetyltransferase