Q0AD61 · RISB_NITEC
- Protein6,7-dimethyl-8-ribityllumazine synthase
- GeneribH
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids165 (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 + H+ + 2 H2O + phosphate
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 | 28 | 5-amino-6-(D-ribitylamino)uracil (UniProtKB | ChEBI) | ||||
Sequence: F | ||||||
Binding site | 62-64 | 5-amino-6-(D-ribitylamino)uracil (UniProtKB | ChEBI) | ||||
Sequence: ALE | ||||||
Binding site | 86-88 | 5-amino-6-(D-ribitylamino)uracil (UniProtKB | ChEBI) | ||||
Sequence: AVI | ||||||
Binding site | 91-92 | (2S)-2-hydroxy-3-oxobutyl phosphate (UniProtKB | ChEBI) | ||||
Sequence: ET | ||||||
Active site | 94 | Proton donor | ||||
Sequence: H | ||||||
Binding site | 119 | 5-amino-6-(D-ribitylamino)uracil (UniProtKB | ChEBI) | ||||
Sequence: N | ||||||
Binding site | 133 | (2S)-2-hydroxy-3-oxobutyl phosphate (UniProtKB | ChEBI) | ||||
Sequence: R |
GO annotations
Aspect | Term | |
---|---|---|
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 > Pseudomonadota > Betaproteobacteria > Nitrosomonadales > Nitrosomonadaceae > Nitrosomonas
Accessions
- Primary accessionQ0AD61
Proteomes
Subcellular Location
UniProt Annotation
GO Annotation
PTM/Processing
Features
Showing features for chain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Chain | PRO_1000040463 | 1-165 | 6,7-dimethyl-8-ribityllumazine synthase | |||
Sequence: MSYYDNILEIDSDLNGNGLCIGIVMSRFNIDTSEGLLGACTTELAKLGVQEADIVLVTVPGALEIPLALQKLAISDRYDALIALGAVIHGETYHFDVVANESARGLIAVGLEYDIPIANGILTTDNEDQATARMTEKGAETARVAVEMANLALTLGEMDQSTTSS |
Interaction
Protein-protein interaction databases
Structure
Sequence
- Sequence statusComplete
- Length165
- Mass (Da)17,463
- Last updated2006-10-17 v1
- ChecksumE38FC54142E749F1
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
CP000450 EMBL· GenBank· DDBJ | ABI60721.1 EMBL· GenBank· DDBJ | Genomic DNA |