Q6GBY8 · KPRS_STAAS
- ProteinRibose-phosphate pyrophosphokinase
- Geneprs
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids321 (go to sequence)
- Protein existenceInferred from homology
- Annotation score4/5
Function
function
Involved in the biosynthesis of the central metabolite phospho-alpha-D-ribosyl-1-pyrophosphate (PRPP) via the transfer of pyrophosphoryl group from ATP to 1-hydroxyl of ribose-5-phosphate (Rib-5-P).
Catalytic activity
- D-ribose 5-phosphate + ATP = 5-phospho-alpha-D-ribose 1-diphosphate + AMP + H+
Cofactor
Note: Binds 2 Mg2+ ions per subunit.
Pathway
Metabolic intermediate biosynthesis; 5-phospho-alpha-D-ribose 1-diphosphate biosynthesis; 5-phospho-alpha-D-ribose 1-diphosphate from D-ribose 5-phosphate (route I): step 1/1.
Features
Showing features for binding site, active site.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Binding site | 44-46 | ATP (UniProtKB | ChEBI) | |||
Binding site | 103-104 | ATP (UniProtKB | ChEBI) | |||
Binding site | 137 | Mg2+ 1 (UniProtKB | ChEBI) | |||
Binding site | 179 | Mg2+ 2 (UniProtKB | ChEBI) | |||
Active site | 202 | ||||
Binding site | 204 | D-ribose 5-phosphate (UniProtKB | ChEBI) | |||
Binding site | 228 | D-ribose 5-phosphate (UniProtKB | ChEBI) | |||
Binding site | 232-236 | D-ribose 5-phosphate (UniProtKB | ChEBI) | |||
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | cytoplasm | |
Cellular Component | ribose phosphate diphosphokinase complex | |
Molecular Function | ATP binding | |
Molecular Function | kinase activity | |
Molecular Function | magnesium ion binding | |
Molecular Function | ribose phosphate diphosphokinase activity | |
Biological Process | 5-phosphoribose 1-diphosphate biosynthetic process | |
Biological Process | phosphorylation | |
Biological Process | purine nucleotide biosynthetic process | |
Biological Process | ribonucleoside monophosphate biosynthetic process |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameRibose-phosphate pyrophosphokinase
- EC number
- Short namesRPPK
- Alternative names
Gene names
Organism names
- Strain
- Taxonomic lineageBacteria > Bacillota > Bacilli > Bacillales > Staphylococcaceae > Staphylococcus
Accessions
- Primary accessionQ6GBY8
Subcellular Location
PTM/Processing
Features
Showing features for chain.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Chain | PRO_0000141190 | 1-321 | Ribose-phosphate pyrophosphokinase | ||
Interaction
Subunit
Homohexamer.
Structure
Sequence
- Sequence statusComplete
- Length321
- Mass (Da)35,284
- Last updated2004-07-19 v1
- Checksum70A955AA62C9415E
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
BX571857 EMBL· GenBank· DDBJ | CAG42232.1 EMBL· GenBank· DDBJ | Genomic DNA |