Q24WY8 · RISB_DESHY
- Protein6,7-dimethyl-8-ribityllumazine synthase
- GeneribH
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids154 (go to sequence)
- Protein existenceInferred from homology
- Annotation score2/5
Function
function
Catalyzes the formation of 6,7-dimethyl-8-ribityllumazine by condensation of 5-amino-6-(D-ribitylamino)uracil with 3,4-dihydroxy-2-butanone 4-phosphate. This is the penultimate step in the biosynthesis of riboflavin.
Catalytic activity
- (2S)-2-hydroxy-3-oxobutyl phosphate + 5-amino-6-(D-ribitylamino)uracil = 6,7-dimethyl-8-(1-D-ribityl)lumazine + phosphate + 2 H2O + H+
Pathway
Cofactor biosynthesis; riboflavin biosynthesis; riboflavin from 2-hydroxy-3-oxobutyl phosphate and 5-amino-6-(D-ribitylamino)uracil: step 1/2.
Features
Showing features for binding site, active site.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Binding site | 22 | 5-amino-6-(D-ribitylamino)uracil (UniProtKB | ChEBI) | ||||
Sequence: F | ||||||
Binding site | 56-58 | 5-amino-6-(D-ribitylamino)uracil (UniProtKB | ChEBI) | ||||
Sequence: AFE | ||||||
Binding site | 80-82 | 5-amino-6-(D-ribitylamino)uracil (UniProtKB | ChEBI) | ||||
Sequence: AVI | ||||||
Binding site | 85-86 | (2S)-2-hydroxy-3-oxobutyl phosphate (UniProtKB | ChEBI) | ||||
Sequence: AT | ||||||
Active site | 88 | Proton donor | ||||
Sequence: H | ||||||
Binding site | 113 | 5-amino-6-(D-ribitylamino)uracil (UniProtKB | ChEBI) | ||||
Sequence: F | ||||||
Binding site | 127 | (2S)-2-hydroxy-3-oxobutyl phosphate (UniProtKB | ChEBI) | ||||
Sequence: R |
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | cytosol | |
Cellular Component | riboflavin synthase complex | |
Molecular Function | 6,7-dimethyl-8-ribityllumazine synthase activity | |
Biological Process | riboflavin biosynthetic process |
Keywords
- Molecular function
- Biological process
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended name6,7-dimethyl-8-ribityllumazine synthase
- EC number
- Short namesDMRL synthase ; LS ; Lumazine synthase
Gene names
Organism names
- Strain
- Taxonomic lineageBacteria > Bacillota > Clostridia > Eubacteriales > Desulfitobacteriaceae > Desulfitobacterium
Accessions
- Primary accessionQ24WY8
Proteomes
Subcellular Location
UniProt Annotation
GO Annotation
PTM/Processing
Features
Showing features for chain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Chain | PRO_1000040415 | 1-154 | 6,7-dimethyl-8-ribityllumazine synthase | |||
Sequence: MMTYEGKLIAEGLKFGIVAARFNEFITNKLVGGALDALLRHGVAESDIEIAWVPGAFEIPLVAQKMAETKKYDAIICLGAVIRGATPHFDFVSAEVSKGVAHVGLETKLPVVFGVLTTDTIEQAIERAGTKAGNKGFDSAITAIETVNLLKMIQ |
Interaction
Protein-protein interaction databases
Structure
Sequence
- Sequence statusComplete
- Length154
- Mass (Da)16,432
- Last updated2006-04-18 v1
- ChecksumF0DD47DF037A48DA
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
AP008230 EMBL· GenBank· DDBJ | BAE83454.1 EMBL· GenBank· DDBJ | Genomic DNA |