A0A1B1W4Z4 · A0A1B1W4Z4_ARATH

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
    • 180404IB4
  • Taxonomic lineage
    Eukaryota > Viridiplantae > Streptophyta > Embryophyta > Tracheophyta > Spermatophyta > Magnoliopsida > eudicotyledons > Gunneridae > Pentapetalae > rosids > malvids > Brassicales > Brassicaceae > Camelineae > Arabidopsis

Accessions

  • Primary accession
    A0A1B1W4Z4

Subcellular Location

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

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane22-47Helical
Transmembrane59-79Helical
Transmembrane99-119Helical
Transmembrane126-143Helical
Transmembrane223-244Helical
Transmembrane296-316Helical
Transmembrane323-342Helical
Transmembrane348-372Helical
Transmembrane393-415Helical
Transmembrane427-448Helical
Transmembrane482-505Helical

Keywords

PTM/Processing

Keywords

Expression

Gene expression databases

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
Domain18-117NAD(P)H-quinone oxidoreductase subunit 2 N-terminal
Domain146-443NADH: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
    512
  • Mass (Da)
    56,988
  • Last updated
    2016-11-02 v1
  • Checksum
    393DBA7F19AC8069
MIWHVQNENFILDSTRIFMKAFHLLLFDGSFIFPECILIFGLILLLMIDSTSDQKDIPWLYFISSTSFVMSITALLFRWREEPMISFSGNFQTNNFNEIFQFLILLCSTLCIPLSVEYIECTEMAITEFLLFILTATLGGMFLCGANDLITIFVAPECFSLCSYLLSGYTKKDIRSNEATMKYLLMGGASSSILVHGFSWLYGSSGGEIELQEIVNGLINTQMYNSPGISIALIFITVGIGFKLSLAPSHQWTPDVYEDSPTPVVAFLSVTSKVAASASATRIFDIPFYFSSNEWHLLLEILAILSMIFGNLIAITQTSMKRMLAYSSIGQIGYVIIGIIVGDSNGGYASMITYMLFYIAMNLGTFACIILFGLRTGTDNIRDYAGLYTKDPFLALSLALCLLSLGGLPPLAGFFGKLHLFWCGWQAGLYFLVSIGLLTSVLSIYYYLKIIKLLMTGRNQEITPHMRNYRISPLRSNNSIELSMIVCVIASTIPGISMNPIIAIAQDTLFSF

Keywords

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
KX551970
EMBL· GenBank· DDBJ
ANW47850.1
EMBL· GenBank· DDBJ
Genomic DNA
MK353213
EMBL· GenBank· DDBJ
QBI37799.1
EMBL· GenBank· DDBJ
Genomic DNA
MK380719
EMBL· GenBank· DDBJ
QDK58688.1
EMBL· GenBank· DDBJ
Genomic DNA
MK380720
EMBL· GenBank· DDBJ
QDK58773.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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