Q5L3Y2 · PDXS_GEOKA
- ProteinPyridoxal 5'-phosphate synthase subunit PdxS
- GenepdxS
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids294 (go to sequence)
- Protein existenceEvidence at protein level
- Annotation score3/5
Function
function
Catalyzes the formation of pyridoxal 5'-phosphate from ribose 5-phosphate (RBP), glyceraldehyde 3-phosphate (G3P) and ammonia. The ammonia is provided by the PdxT subunit. Can also use ribulose 5-phosphate and dihydroxyacetone phosphate as substrates, resulting from enzyme-catalyzed isomerization of RBP and G3P, respectively.
Catalytic activity
- aldehydo-D-ribose 5-phosphate + D-glyceraldehyde 3-phosphate + L-glutamine = H+ + 3 H2O + L-glutamate + phosphate + pyridoxal 5'-phosphate
Pathway
Cofactor biosynthesis; pyridoxal 5'-phosphate biosynthesis.
Features
Showing features for binding site, active site.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Binding site | 24 | D-ribose 5-phosphate (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Active site | 81 | Schiff-base intermediate with D-ribose 5-phosphate | ||||
Sequence: K | ||||||
Binding site | 153 | D-ribose 5-phosphate (UniProtKB | ChEBI) | ||||
Sequence: G | ||||||
Binding site | 165 | D-glyceraldehyde 3-phosphate (UniProtKB | ChEBI) | ||||
Sequence: R | ||||||
Binding site | 214 | D-ribose 5-phosphate (UniProtKB | ChEBI) | ||||
Sequence: G | ||||||
Binding site | 235-236 | D-ribose 5-phosphate (UniProtKB | ChEBI) | ||||
Sequence: GS |
GO annotations
Aspect | Term | |
---|---|---|
Molecular Function | pyridoxal 5'-phosphate synthase (glutamine hydrolysing) activity | |
Biological Process | pyridoxal phosphate biosynthetic process |
Keywords
- Molecular function
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended namePyridoxal 5'-phosphate synthase subunit PdxS
- EC number
- Short namesPLP synthase subunit PdxS
- Alternative names
Gene names
Organism names
- Strain
- Taxonomic lineageBacteria > Bacillota > Bacilli > Bacillales > Bacillaceae > Geobacillus > Geobacillus thermoleovorans group
Accessions
- Primary accessionQ5L3Y2
Proteomes
PTM/Processing
Features
Showing features for chain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Chain | PRO_0000109395 | 1-294 | Pyridoxal 5'-phosphate synthase subunit PdxS | |||
Sequence: MALTGTDRVKRGMAEMQKGGVIMDVVNAEQAKIAEAAGAVAVMALERVPADIRAAGGVARMADPTVIEEVMNAVSIPVMAKVRIGHYVEARVLEALGVDYIDESEVLTPADEEFHIDKRQFTVPFVCGCRDLGEAARRIAEGASMLRTKGEPGTGNIVEAVRHMRKVNAQIRKVVNMSEDELVAEAKQLGAPVEVLREIKRLGRLPVVNFAAGGVATPADAALMMHLGADGVFVGSGIFKSENPEKYARAIVEATTHYEDYELIAHLSKGLGGAMRGIDIATLLPEHRMQERGW |
Interaction
Subunit
Homohexamer and homododecamer. In the presence of PdxT, forms a dodecamer of heterodimers.
Protein-protein interaction databases
Structure
Sequence
- Sequence statusComplete
- Length294
- Mass (Da)31,652
- Last updated2005-02-01 v1
- Checksum3427A52A7DE63F50
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
BA000043 EMBL· GenBank· DDBJ | BAD74296.1 EMBL· GenBank· DDBJ | Genomic DNA |