tRNA(Met) cytidine acetyltransferase TmcA catalyzes 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
tRNA(Met) C34 N-acetyltransferase TmcA [Translation, ribosomal structure and biogenesis]; tRNA(Met) C34 N-acetyltransferase TmcA is part of the Pathway/BioSystem: tRNA modification
:
Pssm-ID: 441053 [Multi-domain] Cd Length: 703 Bit Score: 664.61 E-value: 0e+00
tRNA(Met) C34 N-acetyltransferase TmcA [Translation, ribosomal structure and biogenesis]; tRNA(Met) C34 N-acetyltransferase TmcA is part of the Pathway/BioSystem: tRNA modification
Pssm-ID: 441053 [Multi-domain] Cd Length: 703 Bit Score: 664.61 E-value: 0e+00
Helicase; This domain contains a P-loop (Walker A) motif, suggesting that it has ATPase ...
208-376
3.74e-74
Helicase; This domain contains a P-loop (Walker A) motif, suggesting that it has ATPase activity, and a Walker B motif. 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. It is found in the bacterial exodeoxyribonuclease V alpha chain (RecD), which has 5'-3' helicase activity. It is structurally similar to the motor domain 1A in other SF1 helicases.
Pssm-ID: 461555 [Multi-domain] Cd Length: 171 Bit Score: 237.05 E-value: 3.74e-74
tRNA(Met) C34 N-acetyltransferase TmcA [Translation, ribosomal structure and biogenesis]; tRNA(Met) C34 N-acetyltransferase TmcA is part of the Pathway/BioSystem: tRNA modification
Pssm-ID: 441053 [Multi-domain] Cd Length: 703 Bit Score: 664.61 E-value: 0e+00
Helicase; This domain contains a P-loop (Walker A) motif, suggesting that it has ATPase ...
208-376
3.74e-74
Helicase; This domain contains a P-loop (Walker A) motif, suggesting that it has ATPase activity, and a Walker B motif. 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. It is found in the bacterial exodeoxyribonuclease V alpha chain (RecD), which has 5'-3' helicase activity. It is structurally similar to the motor domain 1A in other SF1 helicases.
Pssm-ID: 461555 [Multi-domain] Cd Length: 171 Bit Score: 237.05 E-value: 3.74e-74
tRNA(Met) cytidine acetyltransferase TmcA, N-terminal; This domain of unknown function is ...
21-132
4.86e-11
tRNA(Met) cytidine acetyltransferase TmcA, N-terminal; This domain of unknown function is often found at the N-terminus of the bacterial tRNA(Met) cytidine acetyltransferase TmcA. TmcA catalyzes 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 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).
Pssm-ID: 462441 [Multi-domain] Cd Length: 178 Bit Score: 61.92 E-value: 4.86e-11
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
of the residues that compose this conserved feature have been mapped to the query sequence.
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Functional characterization of the conserved domain architecture found on the query.
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This image shows a graphical summary of conserved domains identified on the query sequence.
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if a domain or superfamily has been annotated with functional sites (conserved features),
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click on the bars or triangles to view your query sequence embedded in a multiple sequence alignment of the proteins used to develop the corresponding domain model.
The table lists conserved domains identified on the query sequence. Click on the plus sign (+) on the left to display full descriptions, alignments, and scores.
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Concise Display shows only the best scoring domain model, in each hit category listed below except non-specific hits, for each region on the query sequence.
(labeled illustration) Standard Display shows only the best scoring domain model from each source, in each hit category listed below for each region on the query sequence.
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(labeled illustration) Four types of hits can be shown, as available,
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specific hits meet or exceed a domain-specific e-value threshold
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and represent a very high confidence that the query sequence belongs to the same protein family as the sequences use to create the domain model
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Retrieve proteins that contain one or more of the domains present in the query sequence, using the Conserved Domain Architecture Retrieval Tool
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