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Protein

NADH-quinone oxidoreductase subunit 11

Gene

nqo11

Organism
Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at protein leveli

Functioni

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 menaquinone. 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 required for the synthesis of ATP.

Catalytic activityi

NADH + a quinone = NAD+ + a quinol.UniRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Transport

Keywords - Ligandi

NAD

Protein family/group databases

TCDBi3.D.1.3.1. the h(+) or na(+)-translocating nadh dehydrogenase (ndh) family.

Names & Taxonomyi

Protein namesi
Recommended name:
NADH-quinone oxidoreductase subunit 11 (EC:1.6.5.11UniRule annotation)
Alternative name(s):
NADH dehydrogenase I chain 11
NDH-1 subunit 11
Gene namesi
Name:nqo11
Ordered Locus Names:TTHA0094
OrganismiThermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)
Taxonomic identifieri300852 [NCBI]
Taxonomic lineageiBacteriaDeinococcus-ThermusDeinococciThermalesThermaceaeThermus
Proteomesi
  • UP000000532 Componenti: Chromosome

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transmembranei1 – 21HelicalUniRule annotationAdd BLAST21
Transmembranei25 – 45HelicalUniRule annotationAdd BLAST21
Transmembranei59 – 79HelicalUniRule annotationAdd BLAST21

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cell inner membrane, Cell membrane, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001185231 – 95NADH-quinone oxidoreductase subunit 11Add BLAST95

Keywords - PTMi

Quinone

Interactioni

Subunit structurei

NDH-1 is composed of 15 different subunits, Nqo1 to Nqo15. The complex has a L-shaped structure, with the hydrophobic arm (subunits Nqo7, Nqo8 and Nqo10 to Nqo14) embedded in the membrane and the hydrophilic peripheral arm (subunits Nqo1 to Nqo6, Nqo9 and Nqo15) protruding into the bacterial cytoplasm. The hydrophilic domain contains all the redox centers.

Protein-protein interaction databases

DIPiDIP-59269N.
STRINGi300852.TTHA0094.

Structurei

Secondary structure

195
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi2 – 20Combined sources19
Helixi24 – 49Combined sources26
Helixi52 – 78Combined sources27
Beta strandi79 – 83Combined sources5
Helixi87 – 89Combined sources3

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
4HE8X-ray3.30E/K1-95[»]
4HEAX-ray3.30K/S1-95[»]
ProteinModelPortaliQ56226.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the complex I subunit 4L family.UniRule annotation

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiENOG4105M5H. Bacteria.
COG0713. LUCA.
HOGENOMiHOG000066429.
KOiK00340.
OMAiNFVAFSY.
PhylomeDBiQ56226.

Family and domain databases

HAMAPiMF_01456. NDH1_NuoK. 1 hit.
InterProiIPR001133. NADH_UbQ_OxRdtase_chain4L/K.
[Graphical view]
PANTHERiPTHR11434. PTHR11434. 1 hit.
PfamiPF00420. Oxidored_q2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q56226-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSYLLTSALL FALGVYGVLT RRTAILVFLS IELMLNAANL SLVGFARAYG
60 70 80 90
LDGQVAALMV IAVAAAEVAV GLGLIVAIFR HRESTAVDDL SELRG
Length:95
Mass (Da):9,996
Last modified:November 1, 1997 - v1
Checksum:iED9D2A80D2E96592
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U52917 Genomic DNA. Translation: AAA97948.1.
AP008226 Genomic DNA. Translation: BAD69917.1.
PIRiT11908.
RefSeqiWP_011227704.1. NC_006461.1.
YP_143360.1. NC_006461.1.

Genome annotation databases

EnsemblBacteriaiBAD69917; BAD69917; BAD69917.
GeneIDi3169648.
KEGGittj:TTHA0094.
PATRICi23955119. VBITheThe93045_0092.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U52917 Genomic DNA. Translation: AAA97948.1.
AP008226 Genomic DNA. Translation: BAD69917.1.
PIRiT11908.
RefSeqiWP_011227704.1. NC_006461.1.
YP_143360.1. NC_006461.1.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
4HE8X-ray3.30E/K1-95[»]
4HEAX-ray3.30K/S1-95[»]
ProteinModelPortaliQ56226.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

DIPiDIP-59269N.
STRINGi300852.TTHA0094.

Protein family/group databases

TCDBi3.D.1.3.1. the h(+) or na(+)-translocating nadh dehydrogenase (ndh) family.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiBAD69917; BAD69917; BAD69917.
GeneIDi3169648.
KEGGittj:TTHA0094.
PATRICi23955119. VBITheThe93045_0092.

Phylogenomic databases

eggNOGiENOG4105M5H. Bacteria.
COG0713. LUCA.
HOGENOMiHOG000066429.
KOiK00340.
OMAiNFVAFSY.
PhylomeDBiQ56226.

Family and domain databases

HAMAPiMF_01456. NDH1_NuoK. 1 hit.
InterProiIPR001133. NADH_UbQ_OxRdtase_chain4L/K.
[Graphical view]
PANTHERiPTHR11434. PTHR11434. 1 hit.
PfamiPF00420. Oxidored_q2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiNQO11_THET8
AccessioniPrimary (citable) accession number: Q56226
Secondary accession number(s): Q5SM49
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 1, 1997
Last sequence update: November 1, 1997
Last modified: November 2, 2016
This is version 103 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.