B2T2E8 · NUOB_PARPJ

Function

function

NDH-1 shuttles electrons from NADH, via FMN and iron-sulfur (Fe-S) centers, to quinones in the respiratory chain. 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 (By similarity).

Catalytic activity

Cofactor

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

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

Features

Showing features for binding site.

115920406080100120140
TypeIDPosition(s)Description
Binding site37[4Fe-4S] cluster (UniProtKB | ChEBI)
Binding site38[4Fe-4S] cluster (UniProtKB | ChEBI)
Binding site102[4Fe-4S] cluster (UniProtKB | ChEBI)
Binding site132[4Fe-4S] cluster (UniProtKB | ChEBI)

GO annotations

AspectTerm
Cellular Componentplasma membrane respiratory chain complex I
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
      nuoB
    • Ordered locus names
      Bphyt_1344

Organism names

Accessions

  • Primary accession
    B2T2E8

Proteomes

Subcellular Location

Cell inner membrane
; Peripheral membrane protein

Keywords

PTM/Processing

Features

Showing features for chain.

TypeIDPosition(s)Description
ChainPRO_00003583791-159NADH-quinone oxidoreductase subunit B

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.

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
    159
  • Mass (Da)
    17,532
  • Last updated
    2008-07-01 v1
  • Checksum
    9E9DD8BC38A28017
MSIEGVLKEGFVTTTADKLINWTRTGSLWPMTFGLACCAVEMMHAGAARYDLDRFGVVFRPSPRQSDVMIVAGTLCNKMAPALRKVYDQMAEPRWVISMGSCANGGGYYHYSYSVVRGCDRIVPVDVYVPGCPPTAEALVYGVIQLQAKIRRTNTIARQ

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
CP001052
EMBL· GenBank· DDBJ
ACD15759.1
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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