A0A7C9PUW8 · A0A7C9PUW8_9CYAN

  • Protein
    NAD(P)H-quinone oxidoreductase subunit I
  • Gene
    ndhI
  • Status
    UniProtKB unreviewed (TrEMBL)
  • Amino acids
  • Protein existence
    Inferred from homology
  • Annotation score
    3/5

Function

function

NDH-1 shuttles electrons from an unknown electron donor, via FMN and iron-sulfur (Fe-S) centers, to quinones in the respiratory and/or the photosynthetic 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.

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 site64[4Fe-4S] cluster 1 (UniProtKB | ChEBI)
Binding site67[4Fe-4S] cluster 1 (UniProtKB | ChEBI)
Binding site70[4Fe-4S] cluster 1 (UniProtKB | ChEBI)
Binding site74[4Fe-4S] cluster 2 (UniProtKB | ChEBI)
Binding site104[4Fe-4S] cluster 2 (UniProtKB | ChEBI)
Binding site107[4Fe-4S] cluster 2 (UniProtKB | ChEBI)
Binding site110[4Fe-4S] cluster 2 (UniProtKB | ChEBI)
Binding site114[4Fe-4S] cluster 1 (UniProtKB | ChEBI)

GO annotations

AspectTerm
Cellular Componentplasma membrane-derived thylakoid membrane
Molecular Function4 iron, 4 sulfur cluster binding
Molecular Functioniron ion binding
Molecular FunctionNADH dehydrogenase (ubiquinone) activity
Molecular Functionquinone binding
Biological Processphotosynthesis, light reaction

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    NAD(P)H-quinone oxidoreductase subunit I
  • EC number
  • Alternative names
    • NAD(P)H dehydrogenase I subunit I
    • NDH-1 subunit I
      (NDH-I
      )

Gene names

    • Name
      ndhI
    • ORF names
      F6J93_14785

Organism names

  • Taxonomic identifier
  • Organism
  • Strain
    • SIO1A7
  • Taxonomic lineage
    Bacteria > Cyanobacteriota > Cyanophyceae > Oscillatoriophycideae > Oscillatoriales > Oscillatoriaceae > Oscillatoria

Accessions

  • Primary accession
    A0A7C9PUW8

Proteomes

Subcellular Location

Cellular thylakoid membrane
; Peripheral membrane protein

Keywords

PTM/Processing

Keywords

Interaction

Subunit

NDH-1 is composed of at least 11 different subunits.

Family & Domains

Features

Showing features for domain, region, compositional bias.

TypeIDPosition(s)Description
Domain55-844Fe-4S ferredoxin-type
Domain95-1244Fe-4S ferredoxin-type
Region174-194Disordered
Compositional bias176-194Basic and acidic residues

Sequence similarities

Belongs to the complex I 23 kDa subunit family.

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    194
  • Mass (Da)
    22,524
  • Last updated
    2021-02-10 v1
  • Checksum
    DD52A2D94D777E08
MLKFLKQVGDYTKESVQAAKYIGQGLSVTFDHMRRRPVTVQYPYEKLIPSERYRGRIHFEFDKCISCEVCVRVCPINLPVVDWEFDKQSKKKKLKHYSIDFGVCIFCANCVEYCPTNCLSATEEYELAAYDRHELNYDNVAMGRLPYKVTNDPMVQPMRELAYLPKGVVDPHDLPEGALRSGKRPEEIIEESQK

Features

Showing features for compositional bias.

TypeIDPosition(s)Description
Compositional bias176-194Basic and acidic residues

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
JAAHFN010000014
EMBL· GenBank· DDBJ
NER35252.1
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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