P57699 · KDPB_HALSA

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.

1719100200300400500600700
Type
IDPosition(s)Description
Active site3184-aspartylphosphate intermediate
Binding site355ATP (UniProtKB | ChEBI)
Binding site359ATP (UniProtKB | ChEBI)
Binding site416-423ATP (UniProtKB | ChEBI)
Binding site435ATP (UniProtKB | ChEBI)
Binding site554Mg2+ (UniProtKB | ChEBI)
Binding site558Mg2+ (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
      VNG_6177G

Encoded on

  • Plasmid pNRC200

Organism names

Accessions

  • Primary accession
    P57699

Proteomes

Subcellular Location

Cell membrane
; Multi-pass membrane protein

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane35-55Helical
Transmembrane62-82Helical
Transmembrane228-248Helical
Transmembrane254-274Helical
Transmembrane624-644Helical
Transmembrane652-672Helical
Transmembrane698-718Helical

Keywords

PTM/Processing

Features

Showing features for chain.

TypeIDPosition(s)Description
ChainPRO_00000461511-719Potassium-transporting ATPase ATP-binding subunit

Keywords

Interaction

Subunit

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

Structure

Family & Domains

Features

Showing features for region, compositional bias.

Type
IDPosition(s)Description
Region372-396Disordered
Compositional bias373-383Polar residues

Sequence similarities

Keywords

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    719
  • Mass (Da)
    75,986
  • Last updated
    2000-12-08 v1
  • MD5 Checksum
    554E8C93E8FA3C92E5441D76B1F4D8D9
MAEITVTIDTDQQKQAISDSFAKLDPQYLVKNPVLFVVELGTIIGLVMTIAPGLFGATGSRVYYAVITVLLGFTVIFANYAEAYAELEGEAQADSLRALQTEAEGKLLQNDDVDIEDISEDDYEVVASTEIEQDAVVFVDEGDIIPRDGTVVEGSASVDESAITGESEPVIRQSGGDRTSVVGGTEVLSDRIKVEVTSEEGESFLDQMIGLVEDAQRQKTPNEIAMTILLSGLTLVFVVAVATMFFFGEYLASFVGGFAGLDVAELVALLVALMPTTIGALLAAIRVAGMTRVTRRNVIAKSGRAVEAAGDLDALILDKTGTITTGERVAQDFHPLGDADDADVVRASYQSSLYDETTEGRSIVKLAEKMNGKVQTDGGQSASEELDEPGDSVDAPRDVSVTLDAEGLSESNFVPFSAETRMSGIDLSDGTEIRKGAVDAVEEYATTVPGKLRQKSNAISESGGTPLAIAVDGQVVGIIELQDELKPGIADRIAEIQKMGVETIMATGDNQRTARWVADQVGIDEFHAEFDPEEKIELVEDIQDDGKLVGMTGDGTNDAPALAKADVGLAMNAGTNAAKEAGNMVDLDSNPSKIIEVVGIGKQLLMTRGSLTTFSVANDVAKYFVLLPAILAAAIPGLGAMDILNLSTPASAVTATLMYNAFIIPLLIPLALRGVDYKAQSGAQLLRKNLIVYGGGGLIAPFIFIKAIDMLFVALGVFQ

Features

Showing features for compositional bias.

TypeIDPosition(s)Description
Compositional bias373-383Polar residues

Keywords

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
AE004438
EMBL· GenBank· DDBJ
AAG20844.1
EMBL· GenBank· DDBJ
Genomic DNA

Genome annotation databases

Similar Proteins

Disclaimer

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