A0A6H0EHD7 · A0A6H0EHD7_BUTMO

Function

function

NDH-1 shuttles electrons from NADH, via FMN and iron-sulfur (Fe-S) centers, to quinones in the respiratory chain. The immediate electron acceptor for the enzyme in this species is believed to be ubiquinone. Couples the redox reaction to proton translocation (for every two electrons transferred, four hydrogen ions are translocated across the cytoplasmic membrane), 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
Cellular Componentplasma membrane
Cellular Componentthylakoid
Molecular Function4 iron, 4 sulfur cluster binding
Molecular Functioniron ion binding
Molecular FunctionNADH dehydrogenase (ubiquinone) activity
Molecular FunctionNADH:ubiquinone reductase (non-electrogenic) activity
Molecular Functionquinone binding
Biological Processaerobic respiration
Biological Processelectron transport coupled proton transport

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    NADH-quinone oxidoreductase subunit B
  • EC number
  • Alternative names
    • NADH dehydrogenase I subunit B
    • NDH-1 subunit B

Gene names

    • Name
      ndhK
    • Synonyms
      nuoB

Encoded on

  • Plastid

Organism names

  • Taxonomic identifier
  • Taxonomic lineage
    Eukaryota > Viridiplantae > Streptophyta > Embryophyta > Tracheophyta > Spermatophyta > Magnoliopsida > eudicotyledons > Gunneridae > Pentapetalae > rosids > fabids > Fabales > Fabaceae > Papilionoideae > 50 kb inversion clade > NPAAA clade > indigoferoid/millettioid clade > Phaseoleae > Butea

Accessions

  • Primary accession
    A0A6H0EHD7

Subcellular Location

Cell membrane
; Peripheral membrane protein

Keywords

PTM/Processing

Keywords

Interaction

Subunit

NDH-1 is composed of 14 different subunits. Subunits NuoB, C, D, E, F, and G constitute the peripheral sector of the complex.

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain43-153NADH:ubiquinone oxidoreductase-like 20kDa subunit

Sequence similarities

Belongs to the complex I 20 kDa subunit family.

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    213
  • Mass (Da)
    23,993
  • Last updated
    2020-08-12 v1
  • Checksum
    6BCA8FBB0FD88423
MNSIEFPLLDQTTKNSVISTTLNDFSNWSRLSSLWPLLYGTSCCFIEFASLIGSRFDFDRYGLVPRSSPRQADLILTAGTVTMKMAPSLVRLYEQMPEPKYVIAMGACTITGGMFSTDSYSTVRGVDKLIPVDVYLPGCPPKPEAIIDAITKLRKKISREIYEDQMSSQRENRCFTTNHKFHVGCSTHTGNYGQEFFYQPPSTSEIPSDTFFK

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
MN709868
EMBL· GenBank· DDBJ
QIT01440.1
EMBL· GenBank· DDBJ
Genomic DNA
MT240945
EMBL· GenBank· DDBJ
QJW33720.1
EMBL· GenBank· DDBJ
Genomic DNA

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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