A0A3P3XXW0 · A0A3P3XXW0_SORHL

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.

124820406080100120140160180200220240
TypeIDPosition(s)Description
Binding site64[4Fe-4S] cluster (UniProtKB | ChEBI)
Binding site65[4Fe-4S] cluster (UniProtKB | ChEBI)
Binding site129[4Fe-4S] cluster (UniProtKB | ChEBI)
Binding site160[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 > Liliopsida > Poales > Poaceae > PACMAD clade > Panicoideae > Andropogonodae > Andropogoneae > Sorghinae > Sorghum

Accessions

  • Primary accession
    A0A3P3XXW0

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
Domain64-174NADH: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
    248
  • Mass (Da)
    27,920
  • Last updated
    2019-02-13 v1
  • Checksum
    D953A6C2DCD3EB97
MVLTEYSEKKKKEGKDSIETIMSLIEFPLLDQTSSNSVISTTPNDLSNWSRLSSLWPLLYGTSCCFIEFASLIGSRFDFDRYGLVPRSSPRQADLILTAGTVTMKMAPSLVRLYEQMPEPKYVIAMGACTITGGMFSTDSYSTVRGVDKLIPVDVYLPGCPPKPEAVIDALTKLRKKIAREIIEDRTLCQSQKKNRSFTTRHKLYVRRSTHTGTYEQELLYQSPSTLDISSETFFKSKSSVSSYKLVN

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
LS398105
EMBL· GenBank· DDBJ
SPP90723.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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