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
The actual alignment was detected with superfamily member COG1444:
Pssm-ID: 441053 [Multi-domain] Cd Length: 703 Bit Score: 332.18 E-value: 2.43e-101
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: 332.18 E-value: 2.43e-101
Helicase; This domain contains a P-loop (Walker A) motif, suggesting that it has ATPase ...
209-408
8.62e-60
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: 201.61 E-value: 8.62e-60
ribosomal-protein-alanine acetyltransferase; Members of this model belong to the GCN5-related ...
552-583
1.05e-03
ribosomal-protein-alanine acetyltransferase; Members of this model belong to the GCN5-related N-acetyltransferase (GNAT) superfamily. This model covers prokarotes and the archaea. The seed contains a characterized accession for Gram negative E. coli. An untraceable characterized accession (PIR|S66013) for Gram positive B. subtilis scores well (205.0) in the full alignment. Characterized members are lacking in the archaea. Noise cutoff (72.4) was set to exclude M. loti paralog of rimI. Trusted cutoff (80.0) was set at next highest scoring member in the mini-database. [Protein synthesis, Ribosomal proteins: synthesis and modification]
Pssm-ID: 273701 [Multi-domain] Cd Length: 131 Bit Score: 40.00 E-value: 1.05e-03
N-Acyltransferase superfamily: Various enzymes that characteristically catalyze the transfer ...
544-576
2.17e-03
N-Acyltransferase superfamily: Various enzymes that characteristically catalyze the transfer of an acyl group to a substrate; NAT (N-Acyltransferase) is a large superfamily of enzymes that mostly catalyze the transfer of an acyl group to a substrate and are implicated in a variety of functions, ranging from bacterial antibiotic resistance to circadian rhythms in mammals. Members include GCN5-related N-Acetyltransferases (GNAT) such as Aminoglycoside N-acetyltransferases, Histone N-acetyltransferase (HAT) enzymes, and Serotonin N-acetyltransferase, which catalyze the transfer of an acetyl group to a substrate. The kinetic mechanism of most GNATs involves the ordered formation of a ternary complex: the reaction begins with Acetyl Coenzyme A (AcCoA) binding, followed by binding of substrate, then direct transfer of the acetyl group from AcCoA to the substrate, followed by product and subsequent CoA release. Other family members include Arginine/ornithine N-succinyltransferase, Myristoyl-CoA: protein N-myristoyltransferase, and Acyl-homoserinelactone synthase which have a similar catalytic mechanism but differ in types of acyl groups transferred. Leucyl/phenylalanyl-tRNA-protein transferase and FemXAB nonribosomal peptidyltransferases which catalyze similar peptidyltransferase reactions are also included.
Pssm-ID: 173926 [Multi-domain] Cd Length: 65 Bit Score: 37.26 E-value: 2.17e-03
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: 332.18 E-value: 2.43e-101
Helicase; This domain contains a P-loop (Walker A) motif, suggesting that it has ATPase ...
209-408
8.62e-60
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: 201.61 E-value: 8.62e-60
tRNA(Met) cytidine acetyltransferase TmcA, N-terminal; This domain of unknown function is ...
1-129
2.79e-48
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: 169.39 E-value: 2.79e-48
ribosomal-protein-alanine acetyltransferase; Members of this model belong to the GCN5-related ...
552-583
1.05e-03
ribosomal-protein-alanine acetyltransferase; Members of this model belong to the GCN5-related N-acetyltransferase (GNAT) superfamily. This model covers prokarotes and the archaea. The seed contains a characterized accession for Gram negative E. coli. An untraceable characterized accession (PIR|S66013) for Gram positive B. subtilis scores well (205.0) in the full alignment. Characterized members are lacking in the archaea. Noise cutoff (72.4) was set to exclude M. loti paralog of rimI. Trusted cutoff (80.0) was set at next highest scoring member in the mini-database. [Protein synthesis, Ribosomal proteins: synthesis and modification]
Pssm-ID: 273701 [Multi-domain] Cd Length: 131 Bit Score: 40.00 E-value: 1.05e-03
N-Acyltransferase superfamily: Various enzymes that characteristically catalyze the transfer ...
544-576
2.17e-03
N-Acyltransferase superfamily: Various enzymes that characteristically catalyze the transfer of an acyl group to a substrate; NAT (N-Acyltransferase) is a large superfamily of enzymes that mostly catalyze the transfer of an acyl group to a substrate and are implicated in a variety of functions, ranging from bacterial antibiotic resistance to circadian rhythms in mammals. Members include GCN5-related N-Acetyltransferases (GNAT) such as Aminoglycoside N-acetyltransferases, Histone N-acetyltransferase (HAT) enzymes, and Serotonin N-acetyltransferase, which catalyze the transfer of an acetyl group to a substrate. The kinetic mechanism of most GNATs involves the ordered formation of a ternary complex: the reaction begins with Acetyl Coenzyme A (AcCoA) binding, followed by binding of substrate, then direct transfer of the acetyl group from AcCoA to the substrate, followed by product and subsequent CoA release. Other family members include Arginine/ornithine N-succinyltransferase, Myristoyl-CoA: protein N-myristoyltransferase, and Acyl-homoserinelactone synthase which have a similar catalytic mechanism but differ in types of acyl groups transferred. Leucyl/phenylalanyl-tRNA-protein transferase and FemXAB nonribosomal peptidyltransferases which catalyze similar peptidyltransferase reactions are also included.
Pssm-ID: 173926 [Multi-domain] Cd Length: 65 Bit Score: 37.26 E-value: 2.17e-03
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.
Click on the triangle to view details about the feature, including a multiple sequence alignment
of your query sequence and the protein sequences used to curate the domain model,
where hash marks (#) above the aligned sequences show the location of the conserved feature residues.
The thumbnail image, if present, provides an approximate view of the feature's location in 3 dimensions.
Click on the triangle for interactive 3D structure viewing options.
Functional characterization of the conserved domain architecture found on the query.
Click here to see more details.
This image shows a graphical summary of conserved domains identified on the query sequence.
The Show Concise/Full Display button at the top of the page can be used to select the desired level of detail: only top scoring hits
(labeled illustration) or all hits
(labeled illustration).
Domains are color coded according to superfamilies
to which they have been assigned. Hits with scores that pass a domain-specific threshold
(specific hits) are drawn in bright colors.
Others (non-specific hits) and
superfamily placeholders are drawn in pastel colors.
if a domain or superfamily has been annotated with functional sites (conserved features),
they are mapped to the query sequence and indicated through sets of triangles
with the same color and shade of the domain or superfamily that provides the annotation. Mouse over the colored bars or triangles to see descriptions of the domains and features.
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.
Click on the domain model's accession number to view the multiple sequence alignment of the proteins used to develop the corresponding domain model.
To view your query sequence embedded in that multiple sequence alignment, click on the colored bars in the Graphical Summary portion of the search results page,
or click on the triangles, if present, that represent functional sites (conserved features)
mapped to the query sequence.
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.
(labeled illustration) Full Display shows all domain models, in each hit category below, that meet or exceed the RPS-BLAST threshold for statistical significance.
(labeled illustration) Four types of hits can be shown, as available,
for each region on the query sequence:
specific hits meet or exceed a domain-specific e-value threshold
(illustrated example)
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
non-specific hits
meet or exceed the RPS-BLAST threshold for statistical significance (default E-value cutoff of 0.01, or an E-value selected by user via the
advanced search options)
the domain superfamily to which the specific and non-specific hits belong
multi-domain models that were computationally detected and are likely to contain multiple single domains
Retrieve proteins that contain one or more of the domains present in the query sequence, using the Conserved Domain Architecture Retrieval Tool
(CDART).
Modify your query to search against a different database and/or use advanced search options
