P57700 · KDPB_THEAC

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.

166550100150200250300350400450500550600650
Type
IDPosition(s)Description
Active site2954-aspartylphosphate intermediate
Binding site332ATP (UniProtKB | ChEBI)
Binding site336ATP (UniProtKB | ChEBI)
Binding site364-371ATP (UniProtKB | ChEBI)
Binding site382ATP (UniProtKB | ChEBI)
Binding site501Mg2+ (UniProtKB | ChEBI)
Binding site505Mg2+ (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
    • Ordered locus names
      Ta1309

Organism names

Accessions

  • Primary accession
    P57700

Proteomes

Subcellular Location

Cell membrane
; Multi-pass membrane protein

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane28-48Helical
Transmembrane56-76Helical
Transmembrane207-227Helical
Transmembrane244-264Helical
Transmembrane570-590Helical
Transmembrane596-616Helical
Transmembrane644-664Helical

Keywords

PTM/Processing

Features

Showing features for chain.

TypeIDPosition(s)Description
ChainPRO_00000461521-665Potassium-transporting ATPase ATP-binding subunit

Keywords

Proteomic databases

Interaction

Subunit

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

Protein-protein interaction databases

Structure

Family & Domains

Sequence similarities

Keywords

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    665
  • Mass (Da)
    73,016
  • Last updated
    2000-12-08 v1
  • MD5 Checksum
    24B2F8E5E3A9BC362A798103A878B490
MNFMKVYEEFLLTLKNMRPDVIIHNPVMFLTEMSLFLSVFIYAFPGFFGVPSSTTYLQFYLAVVILLFLTVFFSSMSTAMSEGKSKAITDSLKKFKTEVTAHVIRDGNPVDVKSTDLRKGDIIVVYRDEIIPIDGEVIEGSGYVDESNVTGESRAVMKVIGDTVTGSTRLVTDKIKIRATADPGSTFIDKMIDLVNRATREKTPNEIALTVFLSGLTLIFLIITASIFSISHYYGRTANVMMLIVLLIALIPTTIGALLPAIGIAAINKVSEYNIIAKSGRAIENAGDIDTIILDKTGTITIGERQAVRMYPNKGVDDKEFYRMCALASFYDQTKEGISILNLARSNGITVSEEDLRGYSFIPFSSETKYSGLESDSDYIIKGSLHALKEKFHVADEFIEALCKEISMRGGTAIPVVHNGKFAGVIELQDLIKPGIKERIAEIKNMDIKTVMCTGDDEVTAQYISAQVGLDEYIANSKPIDKYNVVIREKERQRMVAMVGDGTNDAPALAKADVGLAMNNGTQAAKEAANMIDLDSNPTKLMDVIFLGKQILITRGALTTFSIANDISKYFVIIPAIFYMFPSLSMVNVLDLTDPIVAVTSALIFNTIIIVFLIPLALGGVKYKPTSISDLLKRNIMIYGLGGVVVPFIAIKLIYMLLVALGVVW

Keywords

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
AL445067
EMBL· GenBank· DDBJ
CAC12430.1
EMBL· GenBank· DDBJ
Genomic DNA

Genome annotation databases

Similar Proteins

Disclaimer

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