Q1YN73 · Q1YN73_AURMS

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.

Caution

The sequence shown here is derived from an EMBL/GenBank/DDBJ whole genome shotgun (WGS) entry which is preliminary data.

Catalytic activity

Cofactor

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

Note: Binds 2 [4Fe-4S] clusters per subunit.

Features

Showing features for binding site.

TypeIDPosition(s)Description
Binding site63[4Fe-4S] cluster 1 (UniProtKB | ChEBI)
Binding site66[4Fe-4S] cluster 1 (UniProtKB | ChEBI)
Binding site69[4Fe-4S] cluster 1 (UniProtKB | ChEBI)
Binding site73[4Fe-4S] cluster 2 (UniProtKB | ChEBI)
Binding site103[4Fe-4S] cluster 2 (UniProtKB | ChEBI)
Binding site106[4Fe-4S] cluster 2 (UniProtKB | ChEBI)
Binding site109[4Fe-4S] cluster 2 (UniProtKB | ChEBI)
Binding site113[4Fe-4S] cluster 1 (UniProtKB | ChEBI)

GO annotations

AspectTerm
Cellular Componentplasma membrane
Molecular Function4 iron, 4 sulfur cluster binding
Molecular Functioniron ion binding
Molecular FunctionNADH:ubiquinone reductase (non-electrogenic) activity
Molecular Functionquinone binding

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

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

Gene names

    • Name
      nuoI
    • ORF names
      SI859A1_01969

Organism names

Accessions

  • Primary accession
    Q1YN73

Proteomes

Subcellular Location

Cell membrane
; Peripheral membrane protein

Keywords

PTM/Processing

Keywords

Interaction

Subunit

NDH-1 is composed of 14 different subunits. Subunits NuoA, H, J, K, L, M, N constitute the membrane sector of the complex.

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain53-834Fe-4S ferredoxin-type
Domain94-1234Fe-4S ferredoxin-type

Sequence similarities

Belongs to the complex I 23 kDa subunit family.

Keywords

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    163
  • Mass (Da)
    18,821
  • Last updated
    2006-05-02 v1
  • Checksum
    58DC3903A2EC75EC
MSAIAQTVRSLFLVEFVKAMGLSMRYFFAPKATVNYPFEKNPQSPRFRGEHALRRYPNGQERCIACKLCEAICPAQAITIEAGPRRNDGTRRTVRYDLDMVKCIYCGFCQEACPVDAIVEGPNFEFSTETREELYYDKQKLLDNGDRWEREIARNIALDAPYR

Keywords

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
AAPJ01000001
EMBL· GenBank· DDBJ
EAS51158.1
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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