A0A1E7Q9A6 · A0A1E7Q9A6_9GAMM
- ProteinPolyphosphate kinase
- Geneppk
- StatusUniProtKB unreviewed (TrEMBL)
- Organism
- Amino acids707 (go to sequence)
- Protein existenceInferred from homology
- Annotation score3/5
Function
function
Catalyzes the reversible transfer of the terminal phosphate of ATP to form a long-chain polyphosphate (polyP).
Catalytic activity
- [phosphate](n) + ATP = [phosphate](n+1) + ADP
Cofactor
Features
Showing features for binding site, active site.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Binding site | 52 | ATP (UniProtKB | ChEBI) | |||
Binding site | 388 | Mg2+ (UniProtKB | ChEBI) | |||
Binding site | 418 | Mg2+ (UniProtKB | ChEBI) | |||
Active site | 448 | Phosphohistidine intermediate | |||
Binding site | 481 | ATP (UniProtKB | ChEBI) | |||
Binding site | 577 | ATP (UniProtKB | ChEBI) | |||
Binding site | 605 | ATP (UniProtKB | ChEBI) | |||
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | polyphosphate kinase complex | |
Molecular Function | ATP binding | |
Molecular Function | metal ion binding | |
Molecular Function | polyphosphate kinase activity | |
Biological Process | phosphorylation | |
Biological Process | polyphosphate biosynthetic process |
Keywords
- Molecular function
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended namePolyphosphate kinase
- EC number
- Alternative names
Gene names
Organism names
- Organism
- Strain
- Taxonomic lineageBacteria > Pseudomonadota > Gammaproteobacteria > Chromatiales > Chromatiaceae > Rheinheimera
Accessions
- Primary accessionA0A1E7Q9A6
Proteomes
Subcellular Location
UniProt Annotation
GO Annotation
PTM/Processing
Post-translational modification
An intermediate of this reaction is the autophosphorylated ppk in which a phosphate is covalently linked to a histidine residue through a N-P bond.
Keywords
- PTM
Interaction
Protein-protein interaction databases
Structure
Family & Domains
Features
Showing features for domain.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Domain | 17-117 | Polyphosphate kinase N-terminal | |||
Domain | 127-318 | Polyphosphate kinase middle | |||
Domain | 345-509 | Polyphosphate kinase C-terminal | |||
Domain | 516-687 | Polyphosphate kinase C-terminal | |||
Sequence similarities
Belongs to the polyphosphate kinase 1 (PPK1) family.
Phylogenomic databases
Family and domain databases
Sequence
- Sequence statusComplete
- Length707
- Mass (Da)81,974
- Last updated2017-01-18 v1
- ChecksumAEBAD3983AD8B369
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
MKEK01000001 EMBL· GenBank· DDBJ | OEY70782.1 EMBL· GenBank· DDBJ | Genomic DNA |