riboflavin kinase catalyzes the phosphorylation of riboflavin (vitamin B2) to form flavin-mononucleotide (FMN), and hence, is the rate-limiting enzyme in the synthesis of FAD
Riboflavin kinase; This family represents the C-terminal region of the bifunctional riboflavin ...
11-163
1.72e-41
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: 135.58 E-value: 1.72e-41
Riboflavin kinase; This family represents the C-terminal region of the bifunctional riboflavin ...
11-163
1.72e-41
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: 135.58 E-value: 1.72e-41
Riboflavin kinase; Riboflavin is converted into catalytically active cofactors (FAD and FMN) ...
18-164
3.49e-38
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: 127.17 E-value: 3.49e-38
Riboflavin kinase; This family represents the C-terminal region of the bifunctional riboflavin ...
11-163
1.72e-41
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: 135.58 E-value: 1.72e-41
Riboflavin kinase; Riboflavin is converted into catalytically active cofactors (FAD and FMN) ...
18-164
3.49e-38
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: 127.17 E-value: 3.49e-38
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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(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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