A4SZG8
Potassium-transporting ATPase ATP-binding subunit
UniProtKB/Swiss-Prot protein
Short name | KDPB_POLAQ |
Length | 691 amino acids |
Species | Polynucleobacter asymbioticus (strain DSM 18221 / CIP 109841 / QLW-P1DMWA-1) |
Gene | kdpB |
Function | Part of the high-affinity ATP-driven potassium transport (or Kdp) system, which catalyzes the hydrolysis of ATP coupled with the electrogenic transport of potassium into the cytoplasm. This subunit is responsible for energy coupling to the transport ... |
Family membership |
Entry matches to this protein
Representative families
Representative domains
Putative cation binding site
Putative ATP binding site
Stabilizes transition state of phosphoryl transfer by contacting beta & gamma phosphate oxygens of ATP
Coordinates with phosphate oxygen from ATP
Nucleophile: attacks gamma phosphate moiety of ATP to form covalent intermediate, Mg2+ ligand
Mg2+ ligand
Conserved in all p-type atpases
Probable role in phosphate transfer from ATP
Conserved in all p-type atpases
Mg2+ ligand
Probable role in phosphate transfer from ATP
Nucleophile: attacks gamma phosphate moiety of ATP to form covalent intermediate, Mg2+ ligand
Stabilizes transition state of phosphoryl transfer by contacting beta & gamma phosphate oxygens of ATP
Coordinates with phosphate oxygen from ATP
PIRSR
METAL: Magnesium.
phobius: CYTOPLASMIC_DOMAIN
phobius: TRANSMEMBRANE
phobius: NON_CYTOPLASMIC_DOMAIN
tmhmm: TMhelix
InterPro GO terms
Panther GO terms
PTHR43743:SF1
biological process
- None
molecular function
cellular component
- None