Q97Z86 · KPRS_SACS2
- ProteinRibose-phosphate pyrophosphokinase
- Geneprs
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids291 (go to sequence)
- Protein existenceEvidence at protein level
- 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
- ATP + D-ribose 5-phosphate = 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 | 34-36 | ATP (UniProtKB | ChEBI) | ||||
Sequence: DGE | ||||||
Binding site | 93-94 | ATP (UniProtKB | ChEBI) | ||||
Sequence: RQ | ||||||
Binding site | 127 | Mg2+ 1 (UniProtKB | ChEBI) | ||||
Sequence: H | ||||||
Binding site | 165 | Mg2+ 2 (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Active site | 188 | |||||
Sequence: K | ||||||
Binding site | 190 | D-ribose 5-phosphate (UniProtKB | ChEBI) | ||||
Sequence: R | ||||||
Binding site | 216 | D-ribose 5-phosphate (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Binding site | 220-224 | D-ribose 5-phosphate (UniProtKB | ChEBI) | ||||
Sequence: STGGT |
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 | purine nucleotide 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 lineageArchaea > Thermoproteota > Thermoprotei > Sulfolobales > Sulfolobaceae > Saccharolobus
Accessions
- Primary accessionQ97Z86
Proteomes
Subcellular Location
PTM/Processing
Features
Showing features for chain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Chain | PRO_0000141248 | 1-291 | Ribose-phosphate pyrophosphokinase | |||
Sequence: MIIIGGSATNGIDESLSKILSIPLVKVENKIFPDGESYIRVPSSIRDEEVLLVQTTDYPQDKHLIELFLIAETIRDLGAKKLTAIVPYLAYSRQDRRFKDGEAISIKTILHILSEVGVNTLVVVEPHKPEELSYFKGELKIVHPYHQIARKIKEIIEDPFILAPDRGALDRARKIAEEINAPYSYIEKERDRTTGEVRIKEAPNINLKGKDVVIIDDIISTGGTIVQATRLAYSLGAKSVTAAAIHLLLVGGAKERLREVGVKTLIGTNTINVNDKDIITIDVSQSIALSL |
Proteomic databases
Interaction
Structure
Sequence
- Sequence statusComplete
- Length291
- Mass (Da)32,179
- Last updated2002-10-25 v2
- ChecksumA18743D629CF60A6
Sequence caution
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
AE006641 EMBL· GenBank· DDBJ | AAK41307.1 EMBL· GenBank· DDBJ | Genomic DNA | Different initiation |