A0A976U7A4 · A0A976U7A4_9FABA

Function

function

Core subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I) that is believed to belong to the minimal assembly required for catalysis. Complex I functions in the transfer of electrons from NADH to the respiratory chain. The immediate electron acceptor for the enzyme is believed to be ubiquinone.
NDH shuttles electrons from NAD(P)H:plastoquinone, via FMN and iron-sulfur (Fe-S) centers, to quinones in the photosynthetic chain and possibly in a chloroplast respiratory 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.

Catalytic activity

GO annotations

AspectTerm
Cellular Componentchloroplast thylakoid membrane
Molecular FunctionNADH dehydrogenase (ubiquinone) activity
Molecular Functionquinone binding
Biological ProcessATP synthesis coupled electron transport
Biological Processphotosynthesis, light reaction

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    NAD(P)H-quinone oxidoreductase subunit 2, chloroplastic
  • EC number
  • Alternative names
    • NAD(P)H dehydrogenase, subunit 2
    • NADH-plastoquinone oxidoreductase subunit 2

Gene names

    • Name
      ndhB

Encoded on

  • Chloroplast

Organism names

  • Taxonomic identifier
  • Strain
    • BPTPS043
  • Taxonomic lineage
    Eukaryota > Viridiplantae > Streptophyta > Embryophyta > Tracheophyta > Spermatophyta > Magnoliopsida > eudicotyledons > Gunneridae > Pentapetalae > rosids > fabids > Fabales > Fabaceae > Papilionoideae > 50 kb inversion clade > genistoids sensu lato > core genistoids > Genisteae > Genista

Accessions

  • Primary accession
    A0A976U7A4

Subcellular Location

Membrane
; Multi-pass membrane protein
Plastid, chloroplast thylakoid membrane
; Multi-pass membrane protein

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane12-37Helical
Transmembrane49-69Helical
Transmembrane89-109Helical
Transmembrane116-133Helical
Transmembrane173-193Helical
Transmembrane213-234Helical
Transmembrane286-306Helical
Transmembrane313-332Helical
Transmembrane338-362Helical
Transmembrane383-405Helical
Transmembrane417-438Helical
Transmembrane470-492Helical

Keywords

PTM/Processing

Keywords

Interaction

Subunit

NDH is composed of at least 16 different subunits, 5 of which are encoded in the nucleus.

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain8-107NAD(P)H-quinone oxidoreductase subunit 2 N-terminal
Domain136-432NADH:quinone oxidoreductase/Mrp antiporter membrane subunit

Sequence similarities

Belongs to the complex I subunit 2 family.

Keywords

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    500
  • Mass (Da)
    55,379
  • Last updated
    2023-02-22 v1
  • Checksum
    5E26B85A97049C4C
MLDSTRIFMKAFHLLLFDGSFIFPECILIFGLILLLMIDSTSDQKDISWFYFISSTSLVMSITALLFRWREEPMISFSGNFQTNNFNEIFQFLILLCSTLCIPLSVEYIECTEMAITEFLLLVLTATLGGMFLCGANDLITIFVAPECFSLCSYLLSGYTKKDVRSNEATTKYLLMGGASSSILVHGFSWLYGSSGGEIELQEIVNGLINTQMYNSPGISIALIFITVGIGFKLSPAPSHQWTPDVYEGSPTPVVAFLSVTSKVAASASATRIFDIPFYFSSNEWHLLLEILAIFSMILGNLIAITQTSMKRMLAYSSIGQIGYVIIGIIVGDSNGGYASMITYMLFYISMNLGTFACIVSFGLRTGTDNIRDYAGLYTKDPFLALSLALCLLSLGGLPPLAGFFGKLYLFWCGWQAGLYFLVSIGLLTSVVSIYYYLKIIKLLMTGRNQEITPHVRNYRRSPLRLNNSIELSMIVCVIASTIPGISMNPIIEIAQDTLF

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
ON641302
EMBL· GenBank· DDBJ
UVF31074.1
EMBL· GenBank· DDBJ
Genomic DNA
ON641302
EMBL· GenBank· DDBJ
UVF31089.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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