A0A8I2DS83 · A0A8I2DS83_9ACTN

  • 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.

Caution

The sequence shown here is derived from an EMBL/GenBank/DDBJ whole genome shotgun (WGS) entry which is preliminary data.

Catalytic activity

Features

Showing features for active site, binding site.

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TypeIDPosition(s)Description
Active site3274-aspartylphosphate intermediate
Binding site364ATP (UniProtKB | ChEBI)
Binding site368ATP (UniProtKB | ChEBI)
Binding site398-405ATP (UniProtKB | ChEBI)
Binding site416ATP (UniProtKB | ChEBI)
Binding site543Mg2+ (UniProtKB | ChEBI)
Binding site547Mg2+ (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
      KBZ94_04865

Organism names

  • Taxonomic identifier
  • Organism
  • Strain
    • RM72
  • Taxonomic lineage
    Bacteria > Actinomycetota > Actinomycetes > Kitasatosporales > Streptomycetaceae > Streptomyces

Accessions

  • Primary accession
    A0A8I2DS83

Proteomes

Subcellular Location

Cell membrane
; Multi-pass membrane protein

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane66-84Helical
Transmembrane90-109Helical
Transmembrane239-260Helical
Transmembrane272-296Helical
Transmembrane609-627Helical
Transmembrane639-661Helical
Transmembrane681-704Helical

Keywords

PTM/Processing

Keywords

Interaction

Subunit

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

Family & Domains

Features

Showing features for compositional bias, region.

TypeIDPosition(s)Description
Compositional bias1-18Polar residues
Region1-36Disordered

Sequence similarities

Keywords

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    708
  • Mass (Da)
    74,122
  • Last updated
    2022-01-19 v1
  • Checksum
    1D6A8B42F46EEADE
MTTDTRKQEDSMSTVTTPDRAPHGDAPAGHQSGEGRVGAGLFDPKHLLTSLPDAFRKLDPRVMVKSPVMFVVLVGSVLTTAFSCADPGDWFGWTISAWLWLTVLFANLAEAVAEGRGKAQADTLRRAKTDTVARRVDGTTVPGTALTVGDLVVCEAGDVIPGDGDVVEGVASVDESAITGESAPVIRESGGDRSAVTGGTKVLSDRVVIKITTKPGETFIDRMINLVEGAARQKTPNEIALNILLASLTVVFLLACATLPPFADYAGTELTMVVLVALLVCLIPTTIGALLSAIGIAGMDRLVQRNVLAMSGRAVEAAGDVSTLLLDKTGTITLGNRQAAEFVPVGGVTEAEVADAAQLSSLADETPEGRSVVVLAKEQYGLRERRQGELAGAEWVEFTAQTRMSGVDVDGRKVRKGAAGSVVAWVEERGGTVAEDASATAERISQAGGTPLLVAVEDERGARVLGVIHLKDVVKQGMRERFDELRRMGIKTVMITGDNPLTAKAIADEAGVDDFLAEATPEDKMALIKREQAGGKLVAMTGDGTNDAPALAQADVGVAMNTGTSAAKEAGNMVDLDSNPTKLIEIVEIGKQLLITRGALTTFSIANDVAKYFAIIPALFAAVYPGLDKLNIMGLSSPSSAILSAVVFNALIIVVLVPLALKGVRYRPMSADRMLRRNLAVYGLGGLVAPFIGIKLIDLIVSLIPGIG

Features

Showing features for compositional bias.

TypeIDPosition(s)Description
Compositional bias1-18Polar residues

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
JAGPYH010000003
EMBL· GenBank· DDBJ
MBQ0884268.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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