A0A1B3MPF2 · A0A1B3MPF2_9SPHN

  • Protein
    Potassium-transporting ATPase ATP-binding subunit
  • Gene
    kdpB
  • Status
    UniProtKB unreviewed (TrEMBL)
  • Amino acids
  • Protein existence
    Inferred from homology
  • Annotation score
    3/5

Function

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 system and for the release of the potassium ions to the cytoplasm.

Catalytic activity

Features

Showing features for active site, binding site.

166950100150200250300350400450500550600650
Type
IDPosition(s)Description
Active site3014-aspartylphosphate intermediate
Binding site338ATP (UniProtKB | ChEBI)
Binding site342ATP (UniProtKB | ChEBI)
Binding site365-372ATP (UniProtKB | ChEBI)
Binding site383ATP (UniProtKB | ChEBI)
Binding site505Mg2+ (UniProtKB | ChEBI)
Binding site509Mg2+ (UniProtKB | ChEBI)

GO annotations

AspectTerm
Cellular Componentplasma membrane
Molecular FunctionATP binding
Molecular FunctionATP hydrolysis activity
Molecular Functionmagnesium ion binding
Molecular FunctionP-type potassium transmembrane transporter activity

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    Potassium-transporting ATPase ATP-binding subunit
  • EC number
  • Alternative names
    • ATP phosphohydrolase [potassium-transporting] B chain
    • Potassium-binding and translocating subunit B
    • Potassium-translocating ATPase B chain

Gene names

    • Name
      kdpB
    • ORF names
      BSY17_3181

Encoded on

  • Plasmid pbsy17_1

Organism names

  • Taxonomic identifier
  • Organism
  • Strain
    • RAC03
  • Taxonomic lineage
    Bacteria > Pseudomonadota > Alphaproteobacteria > Sphingomonadales > Sphingomonadaceae > Sphingobium

Accessions

  • Primary accession
    A0A1B3MPF2

Proteomes

Subcellular Location

Cell membrane
; Multi-pass membrane protein
Membrane

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane32-53Helical
Transmembrane65-83Helical
Transmembrane213-240Helical
Transmembrane246-270Helical
Transmembrane574-597Helical
Transmembrane603-623Helical
Transmembrane643-668Helical

Keywords

PTM/Processing

Keywords

Interaction

Subunit

The system is composed of three essential subunits: KdpA, KdpB and KdpC.

Family & Domains

Sequence similarities

Keywords

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    669
  • Mass (Da)
    69,340
  • Last updated
    2016-11-02 v1
  • MD5 Checksum
    2375859DF04E6FD3060404590E3C6457
MAGTSLFERALLLPAVRDAFIKLDPRTLVRNPVMFTTAIVAMVATVILLRHMIAGTGDLAFEAQLIFWLWLTVLFGNFAEALAEGRGKAQAQSLRATKDQLVALRIGKNGATEEVPATLLRQGDVVLVTQGRQIPADGEVVAGVASVNEAAITGESAPVIREAGGDRSAVTAGTTVLSDQIQVKVTAEPGSGFLDRMIALVEGASRQKTPNEIALTILLTGLTLIFLVAVGTLPAFAAYAGGVLSVPVLIALFVALIPTTISGLLSAIGIAGMDRLIRFNVLAKSGRAVEAAGDIGTLLLDKTGTITIGDRQASEFVPLPGVAQADLIAAARIASLSDTTPEGRSIVTLAGDGDALPADAVPVGFTAQTRVSGIDLPGRSIRKGAVDAVLKLGDFPEDIVRALRKITDRIAQAGGTPLAVVENGRLLGAVHLKDVIKAGIRERFGELRRMGIRTVMITGDNPLTAAAIAAEAGVDDFLAEATPEDKLAYIRKEQAEGKLVAMCGDGTNDAPALAQSDVGVAMNTGTQAAREAGNMVDLDSDPTKLIEVVGIGKQLLMTRGALTTFSIANDVAKYFAILPAIFVVLYPSLGVLNLMGLANPSSAILSAIIFNALIIPLLVPLALRGVAYRPMPAASQLLHNLGIYGAGGVIAPFIGIKLIDLAVAGLGLV

Keywords

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
CP016453
EMBL· GenBank· DDBJ
AOF94983.1
EMBL· GenBank· DDBJ
Genomic DNA

Genome annotation databases

Similar Proteins

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