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Entry version 133 (26 Feb 2020)
Sequence version 1 (01 Nov 1997)
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Protein

NADH-quinone oxidoreductase subunit 4

Gene

nqo4

Organism
Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)
Status
Reviewed-Annotation score:

Annotation score:3 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>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. The Nqo4 subunit may contain the quinone-binding site.2 Publications

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionTranslocase
Biological processTransport
LigandNAD

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
TTHE300852:G1GKC-90-MONOMER

Protein family/group databases

Transport Classification Database

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

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
NADH-quinone oxidoreductase subunit 4 (EC:7.1.1.-)
Alternative name(s):
NADH dehydrogenase I chain 4
NDH-1 subunit 4
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:nqo4
Ordered Locus Names:TTHA0087
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiThermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri300852 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiBacteriaDeinococcus-ThermusDeinococciThermalesThermaceaeThermus
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000000532 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

GO - Cellular componenti

Keywords - Cellular componenti

Cell membrane, Membrane

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00001186171 – 409NADH-quinone oxidoreductase subunit 4Add BLAST409

Keywords - PTMi

Quinone

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction%5Fsection">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>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. This subunit interacts extensively with Nqo6.

2 Publications

Protein-protein interaction databases

Database of interacting proteins

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DIPi
DIP-59262N

Protein interaction database and analysis system

More...
IntActi
Q56220, 1 interactor

STRING: functional protein association networks

More...
STRINGi
300852.55771469

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

Secondary structure

1409
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

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SMRi
Q56220

Database of comparative protein structure models

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ModBasei
Search...

Protein Data Bank in Europe - Knowledge Base

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PDBe-KBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
Q56220

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the complex I 49 kDa subunit family.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG4105CQV Bacteria
COG0649 LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_015134_1_2_0

KEGG Orthology (KO)

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KOi
K00333

Identification of Orthologs from Complete Genome Data

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OMAi
IMGTSME

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q56220

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.645.20, 1 hit

HAMAP database of protein families

More...
HAMAPi
MF_01358 NDH1_NuoD, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR001135 NADH_Q_OxRdtase_suD
IPR038290 NADH_Q_OxRdtase_suD_sf
IPR014029 NADH_UbQ_OxRdtase_49kDa_CS
IPR022885 NDH1_su_D/H
IPR029014 NiFe-Hase_large

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00346 Complex1_49kDa, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF56762 SSF56762, 1 hit

TIGRFAMs; a protein family database

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TIGRFAMsi
TIGR01962 NuoD, 1 hit

PROSITE; a protein domain and family database

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PROSITEi
View protein in PROSITE
PS00535 COMPLEX1_49K, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

Q56220-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MREEFLEEIP LDAPPEEAKE LRTEVMTLNV GPQHPSTHGV LRLMVTLSGE
60 70 80 90 100
EVLEVVPHIG YLHTGFEKTM EHRTYLQNIT YTPRMDYLHS FAHDLAYALA
110 120 130 140 150
VEKLLGAVVP PRAETIRVIL NELSRLASHL VFLGTGLLDL GALTPFFYAF
160 170 180 190 200
RERETILDLF EWVTGQRFHH NYIRIGGVKE DLPEEFVPEL KKLLEVLPHR
210 220 230 240 250
IDEYEALFAE SPIFYERARG VGVIPPEVAI DLGLTGGSLR ASGVNYDVRK
260 270 280 290 300
AYPYSGYETY TFDVPLGERG DVFDRMLVRI REMRESVKII KQALERLEPG
310 320 330 340 350
PVRDPNPQIT PPPRHLLETS MEAVIYHFKH YTEGFHPPKG EVYVPTESAR
360 370 380 390 400
GELGYYIVSD GGSMPYRVKV RAPSFVNLQS LPYACKGEQV PDMVAIIASL

DPVMGDVDR
Length:409
Mass (Da):46,371
Last modified:November 1, 1997 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i161AA0C796D62ED3
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

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EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

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DDBJi
Links Updated
U52917 Genomic DNA Translation: AAA97941.1
AP008226 Genomic DNA Translation: BAD69910.1

Protein sequence database of the Protein Information Resource

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PIRi
T11901

NCBI Reference Sequences

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RefSeqi
WP_011227699.1, NC_006461.1
YP_143353.1, NC_006461.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

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EnsemblBacteriai
BAD69910; BAD69910; BAD69910

Database of genes from NCBI RefSeq genomes

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GeneIDi
3168206

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ttj:TTHA0087

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|300852.9.peg.85

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U52917 Genomic DNA Translation: AAA97941.1
AP008226 Genomic DNA Translation: BAD69910.1
PIRiT11901
RefSeqiWP_011227699.1, NC_006461.1
YP_143353.1, NC_006461.1

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...
PDBei

Protein Data Bank RCSB

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RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
2FUGX-ray3.304/D/M/V1-409[»]
2YBBelectron microscopy19.0041-409[»]
3I9VX-ray3.104/D1-409[»]
3IAMX-ray3.104/D1-409[»]
3IASX-ray3.154/D/M/V1-409[»]
3M9SX-ray4.504/D1-409[»]
4HEAX-ray3.304/E1-409[»]
SMRiQ56220
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

DIPiDIP-59262N
IntActiQ56220, 1 interactor
STRINGi300852.55771469

Protein family/group databases

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

Genome annotation databases

EnsemblBacteriaiBAD69910; BAD69910; BAD69910
GeneIDi3168206
KEGGittj:TTHA0087
PATRICifig|300852.9.peg.85

Phylogenomic databases

eggNOGiENOG4105CQV Bacteria
COG0649 LUCA
HOGENOMiCLU_015134_1_2_0
KOiK00333
OMAiIMGTSME
PhylomeDBiQ56220

Enzyme and pathway databases

BioCyciTTHE300852:G1GKC-90-MONOMER

Miscellaneous databases

EvolutionaryTraceiQ56220

Family and domain databases

Gene3Di1.10.645.20, 1 hit
HAMAPiMF_01358 NDH1_NuoD, 1 hit
InterProiView protein in InterPro
IPR001135 NADH_Q_OxRdtase_suD
IPR038290 NADH_Q_OxRdtase_suD_sf
IPR014029 NADH_UbQ_OxRdtase_49kDa_CS
IPR022885 NDH1_su_D/H
IPR029014 NiFe-Hase_large
PfamiView protein in Pfam
PF00346 Complex1_49kDa, 1 hit
SUPFAMiSSF56762 SSF56762, 1 hit
TIGRFAMsiTIGR01962 NuoD, 1 hit
PROSITEiView protein in PROSITE
PS00535 COMPLEX1_49K, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiNQO4_THET8
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: Q56220
Secondary accession number(s): Q5SM56
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 1, 1997
Last sequence update: November 1, 1997
Last modified: February 26, 2020
This is version 133 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

3D-structure, Direct protein sequencing, Reference proteome

Documents

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