A2BUS4 · NDHK_PROM5

Function

function

NDH-1 shuttles electrons from an unknown electron donor, via FMN and iron-sulfur (Fe-S) centers, to quinones in the respiratory and/or the photosynthetic chain. The immediate electron acceptor for the enzyme in this species is believed to be plastoquinone. Couples the redox reaction to proton translocation, and thus conserves the redox energy in a proton gradient. Cyanobacterial NDH-1 also plays a role in inorganic carbon-concentration.

Catalytic activity

Cofactor

[4Fe-4S] cluster (UniProtKB | Rhea| CHEBI:49883 )

Note: Binds 1 [4Fe-4S] cluster.

Features

Showing features for binding site.

TypeIDPosition(s)Description
Binding site60[4Fe-4S] cluster (UniProtKB | ChEBI)
Binding site61[4Fe-4S] cluster (UniProtKB | ChEBI)
Binding site125[4Fe-4S] cluster (UniProtKB | ChEBI)
Binding site156[4Fe-4S] cluster (UniProtKB | ChEBI)

GO annotations

AspectTerm
Cellular Componentplasma membrane respiratory chain complex I
Cellular Componentplasma membrane-derived thylakoid membrane
Molecular Function4 iron, 4 sulfur cluster binding
Molecular Functioniron ion binding
Molecular FunctionNADH dehydrogenase (ubiquinone) activity
Molecular Functionquinone binding
Biological Processaerobic respiration
Biological Processelectron transport coupled proton transport
Biological Processphotosynthesis, light reaction

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    NAD(P)H-quinone oxidoreductase subunit K
  • EC number
  • Alternative names
    • NAD(P)H dehydrogenase I subunit K
    • NDH-1 subunit K
      (NDH-K
      )

Gene names

    • Name
      ndhK
    • Ordered locus names
      P9515_03261

Organism names

Accessions

  • Primary accession
    A2BUS4

Proteomes

Subcellular Location

Keywords

PTM/Processing

Features

Showing features for chain.

TypeIDPosition(s)Description
ChainPRO_00003584561-244NAD(P)H-quinone oxidoreductase subunit K

Keywords

Interaction

Subunit

NDH-1 can be composed of about 15 different subunits; different subcomplexes with different compositions have been identified which probably have different functions.

Protein-protein interaction databases

Structure

Family & Domains

Sequence similarities

Belongs to the complex I 20 kDa subunit family.

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    244
  • Mass (Da)
    27,327
  • Last updated
    2007-02-20 v1
  • Checksum
    77C957A7D914282D
MNNSLSPKAIRELREETCNPLGAPQVTTDLSENIIMTSLDDLHNWARLSSLWPLLYGTACCFIEFAALIGSRFDFDRFGLVPRSSPRQADLLIVAGTVTMKMAPALVRLYEQMPEPKYVIAMGACTITGGMFSADSTTAVRGVDKLIPVDLYLPGCPPRPEAIFDAVIKLRKKVGNESILERNKAEQTHRYLTVKHDMKLVFSENTGEYLNKKSEKAIKSSDLEMIEENIKVKIEENLIDEETK

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
CP000552
EMBL· GenBank· DDBJ
ABM71535.1
EMBL· GenBank· DDBJ
Genomic DNA

Genome annotation databases

Similar Proteins

Disclaimer

Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. Our staff consists of biologists and biochemists that are not trained to give medical advice.
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