A0A8J7BEZ5 · A0A8J7BEZ5_9CYAN
- ProteinRibose-phosphate pyrophosphokinase
- Geneprs
- StatusUniProtKB unreviewed (TrEMBL)
- Organism
- Amino acids323 (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
- 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 | 48-50 | ATP (UniProtKB | ChEBI) | ||||
Sequence: DGE | ||||||
Binding site | 141 | Mg2+ (UniProtKB | ChEBI) | ||||
Sequence: H | ||||||
Binding site | 180 | Mg2+ (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Active site | 204 | |||||
Sequence: K | ||||||
Binding site | 206 | D-ribose 5-phosphate (UniProtKB | ChEBI) | ||||
Sequence: R | ||||||
Binding site | 230 | D-ribose 5-phosphate (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Binding site | 234-238 | D-ribose 5-phosphate (UniProtKB | ChEBI) | ||||
Sequence: DTAGT |
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 | |
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
- Organism
- Strain
- Taxonomic lineageBacteria > Cyanobacteriota > Cyanophyceae > Nodosilineales > Nodosilineaceae > Nodosilinea
Accessions
- Primary accessionA0A8J7BEZ5
Proteomes
Subcellular Location
Interaction
Subunit
Homohexamer.
Structure
Family & Domains
Features
Showing features for domain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Domain | 15-131 | Ribose-phosphate pyrophosphokinase N-terminal | ||||
Sequence: LKLFSGSANVDLAREVARYLGLDLGPMVRKRFADGEVYIQIQESIRGCDVYLIQPTCYPVNDHLMELLIMIDACRRASARQITAVIPYYGYARADRKTAGRESITAKLVANLMTKAG |
Sequence similarities
Belongs to the ribose-phosphate pyrophosphokinase family. Class I subfamily.
Family and domain databases
Sequence
- Sequence statusComplete
- Length323
- Mass (Da)35,439
- Last updated2022-05-25 v1
- Checksum14402F470AE6CACB