Q7YJW8 · NDHK_CALFG

Function

function

NDH shuttles electrons from NAD(P)H:plastoquinone, via FMN and iron-sulfur (Fe-S) centers, to quinones in the photosynthetic chain and possibly in a chloroplast respiratory 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.

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 site43[4Fe-4S] cluster (UniProtKB | ChEBI)
Binding site44[4Fe-4S] cluster (UniProtKB | ChEBI)
Binding site108[4Fe-4S] cluster (UniProtKB | ChEBI)
Binding site139[4Fe-4S] cluster (UniProtKB | ChEBI)

GO annotations

AspectTerm
Cellular Componentchloroplast thylakoid membrane
Cellular Componentrespiratory chain complex I
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, chloroplastic
  • EC number
  • Alternative names
    • NAD(P)H dehydrogenase subunit K
    • NADH-plastoquinone oxidoreductase subunit K

Gene names

    • Name
      ndhK

Encoded on

  • Chloroplast

Organism names

Accessions

  • Primary accession
    Q7YJW8

Subcellular Location

Keywords

PTM/Processing

Features

Showing features for chain.

TypeIDPosition(s)Description
ChainPRO_00003585251-225NAD(P)H-quinone oxidoreductase subunit K, chloroplastic

Keywords

Interaction

Subunit

NDH is composed of at least 16 different subunits, 5 of which are encoded in the nucleus.

Structure

Family & Domains

Sequence similarities

Belongs to the complex I 20 kDa subunit family.

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    225
  • Mass (Da)
    25,265
  • Last updated
    2008-12-16 v2
  • MD5 Checksum
    B09419357C5844927A0CB0608F7DD279
MNSTEFPLLDRTTQNSVISTTLNDLSNWSRLSSLWPLLYGTSCCFIEFASLIGSRFDFDRYGLVPRSSPRQADLILTAGTVTMKMAPSLVRLYEQMPEPKYVIAMGACTITGGMFSTDSYSTVRGVDKLIPVDVYLPGCPPKPEAVIDAITKLRKKVSREIYQDRIGSQQENRCFTTNHKFHIERSTHTGNYGQGLLYQSPSTSEIPSETFFKYKSSVSSHELMN

Sequence caution

The sequence CAD28725.1 differs from that shown. Reason: Erroneous initiation

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
AJ428413
EMBL· GenBank· DDBJ
CAD28725.1
EMBL· GenBank· DDBJ
Genomic DNA Different initiation

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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