Q72B63 · RIBB_NITV2
- Protein3,4-dihydroxy-2-butanone 4-phosphate synthase
- GeneribB
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids214 (go to sequence)
- Protein existenceInferred from homology
- Annotation score3/5
Function
function
Catalyzes the conversion of D-ribulose 5-phosphate to formate and 3,4-dihydroxy-2-butanone 4-phosphate.
Catalytic activity
- D-ribulose 5-phosphate = (2S)-2-hydroxy-3-oxobutyl phosphate + formate + H+
Cofactor
Mn2+ (UniProtKB | Rhea| CHEBI:29035 )
Note: Binds 2 divalent metal cations per subunit. Magnesium or manganese.
Pathway
Cofactor biosynthesis; riboflavin biosynthesis; 2-hydroxy-3-oxobutyl phosphate from D-ribulose 5-phosphate: step 1/1.
Features
Showing features for binding site, site.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Binding site | 37-38 | D-ribulose 5-phosphate (UniProtKB | ChEBI) | ||||
Sequence: RE | ||||||
Binding site | 38 | Mg2+ 1 (UniProtKB | ChEBI) | ||||
Sequence: E | ||||||
Binding site | 38 | Mg2+ 2 (UniProtKB | ChEBI) | ||||
Sequence: E | ||||||
Binding site | 42 | D-ribulose 5-phosphate (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Site | 136 | Essential for catalytic activity | ||||
Sequence: H | ||||||
Binding site | 150-154 | D-ribulose 5-phosphate (UniProtKB | ChEBI) | ||||
Sequence: RRGHT | ||||||
Binding site | 153 | Mg2+ 2 (UniProtKB | ChEBI) | ||||
Sequence: H | ||||||
Binding site | 174 | D-ribulose 5-phosphate (UniProtKB | ChEBI) | ||||
Sequence: E | ||||||
Site | 174 | Essential for catalytic activity | ||||
Sequence: E |
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | cytosol | |
Molecular Function | 3,4-dihydroxy-2-butanone-4-phosphate synthase activity | |
Molecular Function | GTP cyclohydrolase II activity | |
Molecular Function | magnesium ion binding | |
Molecular Function | manganese ion binding | |
Biological Process | riboflavin biosynthetic process |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended name3,4-dihydroxy-2-butanone 4-phosphate synthase
- EC number
- Short namesDHBP synthase
Gene names
Organism names
- Strain
- Taxonomic lineageBacteria > Thermodesulfobacteriota > Desulfovibrionia > Desulfovibrionales > Desulfovibrionaceae > Nitratidesulfovibrio
Accessions
- Primary accessionQ72B63
Proteomes
Subcellular Location
UniProt Annotation
GO Annotation
PTM/Processing
Features
Showing features for chain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Chain | PRO_1000040603 | 1-214 | 3,4-dihydroxy-2-butanone 4-phosphate synthase | |||
Sequence: MNQHLLEQFGTTHERVERGLAALRTGQGVLVADDADRENEGDLIFAAETLTPAQMAMMIRECSGIVCLCLPEERVSRLGLPMMVAHNTSSMGTAFTISIEAAEGVTTGVSAADRVRTVKAAIDDAACPGCLRSPGHVFPLRASPGGVLERRGHTEATVDLMRLAGLKPYGVLCELTNPDGTMARLPQLVDFAQRNRMTVLTVEDLVAYRQDKGL |
Proteomic databases
Interaction
Structure
Sequence
- Sequence statusComplete
- Length214
- Mass (Da)23,033
- Last updated2004-07-05 v1
- Checksum6D88591EEEA21AE9
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
AE017285 EMBL· GenBank· DDBJ | AAS96252.1 EMBL· GenBank· DDBJ | Genomic DNA |