FAD synthetase, N-terminal domain of the bifunctional enzyme; FAD synthetase_N. N-terminal ...
2-184
3.02e-71
FAD synthetase, N-terminal domain of the bifunctional enzyme; FAD synthetase_N. N-terminal domain of the bifunctional riboflavin biosynthesis protein riboflavin kinase/FAD synthetase. These enzymes have both ATP:riboflavin 5'-phosphotransferase and ATP:FMN-adenylyltransferase activities. The N-terminal domain is believed to play a role in the adenylylation reaction of FAD synthetases. The C-terminal domain is thought to have kinase activity. FAD synthetase is present among all kingdoms of life. However, the bifunctional enzyme is not found in mammals, which use separate enzymes for FMN and FAD formation.
Pssm-ID: 185679 [Multi-domain] Cd Length: 180 Bit Score: 218.18 E-value: 3.02e-71
FAD synthetase; This family corresponds to the N terminal domain of the bifunctional enzyme ...
2-142
1.70e-62
FAD synthetase; This family corresponds to the N terminal domain of the bifunctional enzyme riboflavin kinase / FAD synthetase. These enzymes have both ATP:riboflavin 5'-phospho transferase and ATP:FMN-adenylyltransferase activity. They catalyze the 5'-phosphorylation of riboflavin to FMN and the adenylylation of FMN to FAD. This domain is thought to have the flavin mononucleotide (FMN) adenylyltransferase activity.
Pssm-ID: 429011 [Multi-domain] Cd Length: 158 Bit Score: 195.09 E-value: 1.70e-62
Riboflavin kinase; Riboflavin is converted into catalytically active cofactors (FAD and FMN) ...
171-305
6.73e-54
Riboflavin kinase; Riboflavin is converted into catalytically active cofactors (FAD and FMN) by the actions of riboflavin kinase, which converts it into FMN, and FAD synthetase, which adenylates FMN to FAD. Eukaryotes usually have two separate enzymes, while most prokaryotes have a single bifunctional protein that can carry out both catalyses, although exceptions occur in both cases. While eukaryotic monofunctional riboflavin kinase is orthologous to the bifunctional prokaryotic enzyme. the monofunctional FAD synthetase differs from its prokaryotic counterpart, and is instead related to the PAPS-reductase family. The bacterial FAD synthetase that is part of the bifunctional enzyme has remote similarity to nucleotidyl transferases and, hence, it may be involved in the adenylylation reaction of FAD synthetases. This entry represents riboflavin kinase, which occurs as part of a bifunctional enzyme or a stand-alone enzyme.
Pssm-ID: 214901 [Multi-domain] Cd Length: 124 Bit Score: 171.85 E-value: 6.73e-54
FAD synthetase, N-terminal domain of the bifunctional enzyme; FAD synthetase_N. N-terminal ...
2-184
3.02e-71
FAD synthetase, N-terminal domain of the bifunctional enzyme; FAD synthetase_N. N-terminal domain of the bifunctional riboflavin biosynthesis protein riboflavin kinase/FAD synthetase. These enzymes have both ATP:riboflavin 5'-phosphotransferase and ATP:FMN-adenylyltransferase activities. The N-terminal domain is believed to play a role in the adenylylation reaction of FAD synthetases. The C-terminal domain is thought to have kinase activity. FAD synthetase is present among all kingdoms of life. However, the bifunctional enzyme is not found in mammals, which use separate enzymes for FMN and FAD formation.
Pssm-ID: 185679 [Multi-domain] Cd Length: 180 Bit Score: 218.18 E-value: 3.02e-71
FAD synthetase; This family corresponds to the N terminal domain of the bifunctional enzyme ...
2-142
1.70e-62
FAD synthetase; This family corresponds to the N terminal domain of the bifunctional enzyme riboflavin kinase / FAD synthetase. These enzymes have both ATP:riboflavin 5'-phospho transferase and ATP:FMN-adenylyltransferase activity. They catalyze the 5'-phosphorylation of riboflavin to FMN and the adenylylation of FMN to FAD. This domain is thought to have the flavin mononucleotide (FMN) adenylyltransferase activity.
Pssm-ID: 429011 [Multi-domain] Cd Length: 158 Bit Score: 195.09 E-value: 1.70e-62
Riboflavin kinase; Riboflavin is converted into catalytically active cofactors (FAD and FMN) ...
171-305
6.73e-54
Riboflavin kinase; Riboflavin is converted into catalytically active cofactors (FAD and FMN) by the actions of riboflavin kinase, which converts it into FMN, and FAD synthetase, which adenylates FMN to FAD. Eukaryotes usually have two separate enzymes, while most prokaryotes have a single bifunctional protein that can carry out both catalyses, although exceptions occur in both cases. While eukaryotic monofunctional riboflavin kinase is orthologous to the bifunctional prokaryotic enzyme. the monofunctional FAD synthetase differs from its prokaryotic counterpart, and is instead related to the PAPS-reductase family. The bacterial FAD synthetase that is part of the bifunctional enzyme has remote similarity to nucleotidyl transferases and, hence, it may be involved in the adenylylation reaction of FAD synthetases. This entry represents riboflavin kinase, which occurs as part of a bifunctional enzyme or a stand-alone enzyme.
Pssm-ID: 214901 [Multi-domain] Cd Length: 124 Bit Score: 171.85 E-value: 6.73e-54
Riboflavin kinase; This family represents the C-terminal region of the bifunctional riboflavin ...
171-304
8.00e-54
Riboflavin kinase; This family represents the C-terminal region of the bifunctional riboflavin biosynthesis protein known as RibC in Bacillus subtilis. The RibC protein from Bacillus subtilis has both flavokinase and flavin adenine dinucleotide synthetase (FAD-synthetase) activities. RibC plays an essential role in the flavin metabolism. This domain is thought to have kinase activity.
Pssm-ID: 460295 [Multi-domain] Cd Length: 123 Bit Score: 171.79 E-value: 8.00e-54
Cytidylyltransferase-like domain; Cytidylyltransferase-like domain. Many of these proteins are ...
2-156
3.09e-07
Cytidylyltransferase-like domain; Cytidylyltransferase-like domain. Many of these proteins are known to use CTP or ATP and release pyrophosphate. Protein families that contain at least one copy of this domain include citrate lyase ligase, pantoate-beta-alanine ligase, glycerol-3-phosphate cytidyltransferase, ADP-heptose synthase, phosphocholine cytidylyltransferase, lipopolysaccharide core biosynthesis protein KdtB, the bifunctional protein NadR, and a number whose function is unknown.
Pssm-ID: 185678 [Multi-domain] Cd Length: 143 Bit Score: 48.98 E-value: 3.09e-07
Cytidylyltransferase-like; This family includes: Cholinephosphate cytidylyltransferase; ...
2-156
1.51e-03
Cytidylyltransferase-like; This family includes: Cholinephosphate cytidylyltransferase; glycerol-3-phosphate cytidylyltransferase. It also includes putative adenylyltransferases, and FAD synthases.
Pssm-ID: 396172 [Multi-domain] Cd Length: 134 Bit Score: 38.07 E-value: 1.51e-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
