Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.

UniProtKB - P0AFD6 (NUOI_ECOLI)

Entry version 123 (10 Feb 2021)
Sequence version 1 (20 Dec 2005)
Previous versions | rss
Add a publicationFeedback
Protein

NADH-quinone oxidoreductase subunit I

Gene

nuoI

Organism
Escherichia coli (strain K12)
Status
Reviewed-Annotation score:

Annotation score:4 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 believed to be ubiquinone. 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.

<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>This subsection of the 'Function' section provides information relevant to cofactors. A cofactor is any non-protein substance required for a protein to be catalytically active. Some cofactors are inorganic, such as the metal atoms zinc, iron, and copper in various oxidation states. Others, such as most vitamins, are organic.<p><a href='/help/cofactor' target='_top'>More...</a></p>Cofactori

[4Fe-4S] clusterBy similarityNote: Binds 2 [4Fe-4S] clusters per subunit.By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the 'Description' field.<p><a href='/help/metal' target='_top'>More...</a></p>Metal bindingi60Iron-sulfur 1 (4Fe-4S)By similarity1
Metal bindingi63Iron-sulfur 1 (4Fe-4S)By similarity1
Metal bindingi66Iron-sulfur 1 (4Fe-4S)By similarity1
Metal bindingi70Iron-sulfur 2 (4Fe-4S)By similarity1
Metal bindingi99Iron-sulfur 2 (4Fe-4S)By similarity1
Metal bindingi102Iron-sulfur 2 (4Fe-4S)By similarity1
Metal bindingi105Iron-sulfur 2 (4Fe-4S)By similarity1
Metal bindingi109Iron-sulfur 1 (4Fe-4S)By similarity1

<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

Complete GO annotation on QuickGO ...

GO - Biological processi

  • aerobic respiration Source: EcoCyc
Complete GO annotation on QuickGO ...

<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
Ligand4Fe-4S, Iron, Iron-sulfur, Metal-binding, NAD, Ubiquinone

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...BioCyci		EcoCyc:NUOI-MONOMER
MetaCyc:NUOI-MONOMER

Protein family/group databases

Transport Classification Database

More...TCDBi		3.D.1.1.1, 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 I (EC:7.1.1.-)
Alternative name(s):
NADH dehydrogenase I subunit I
NDH-1 subunit I
NUO9
<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:nuoI
Ordered Locus Names:b2281, JW2276
<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>OrganismiEscherichia coli (strain K12)
<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 identifieri83333 [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 lineageiBacteria › Proteobacteria › Gammaproteobacteria › Enterobacterales › Enterobacteriaceae › Escherichia ›
<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
  • UP000000318 <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
  • UP000000625 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

Keywords - Cellular componenti

Cell inner membrane, 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 or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00001187221 – 180NADH-quinone oxidoreductase subunit IAdd BLAST180

Keywords - PTMi

Quinone

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...jPOSTi		P0AFD6

PaxDb, a database of protein abundance averages across all three domains of life

More...PaxDbi		P0AFD6

PRoteomics IDEntifications database

More...PRIDEi		P0AFD6

<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 13 different subunits. Subunits NuoA, H, J, K, L, M, N constitute the membrane sector of the complex (By similarity).

By similarity

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...BioGRIDi		4260510, 80 interactors

ComplexPortal: manually curated resource of macromolecular complexes

More...ComplexPortali		CPX-243, Respiratory chain complex I

Database of interacting proteins

More...DIPi		DIP-35918N

Protein interaction database and analysis system

More...IntActi		P0AFD6, 8 interactors

STRING: functional protein association networks

More...STRINGi		511145.b2281

<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

3D structure databases

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

More...SMRi		P0AFD6

Database of comparative protein structure models

More...ModBasei		Search...

<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

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family%5Fand%5Fdomains%5Fsection">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini50 – 804Fe-4S ferredoxin-type 1Add BLAST31
Domaini90 – 1194Fe-4S ferredoxin-type 2Add BLAST30

<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 23 kDa subunit family.Curated

Keywords - Domaini

Repeat

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		COG1143, Bacteria

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_067218_4_3_6

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		P0AFD6

Database for complete collections of gene phylogenies

More...PhylomeDBi		P0AFD6

Family and domain databases

HAMAP database of protein families

More...HAMAPi		MF_01351, NDH1_NuoI, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR017896, 4Fe4S_Fe-S-bd
IPR017900, 4Fe4S_Fe_S_CS
IPR010226, NADH_quinone_OxRdtase_chainI

The PANTHER Classification System

More...PANTHERi		PTHR10849, PTHR10849, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF12838, Fer4_7, 1 hit

TIGRFAMs; a protein family database

More...TIGRFAMsi		TIGR01971, NuoI, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS00198, 4FE4S_FER_1, 2 hits
PS51379, 4FE4S_FER_2, 2 hits

<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.

P0AFD6-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MTLKELLVGF GTQVRSIWMI GLHAFAKRET RMYPEEPVYL PPRYRGRIVL 
        60         70         80         90        100
TRDPDGEERC VACNLCAVAC PVGCISLQKA ETKDGRWYPE FFRINFSRCI 
       110        120        130        140        150
FCGLCEEACP TTAIQLTPDF EMGEYKRQDL VYEKEDLLIS GPGKYPEYNF 
       160        170        180
YRMAGMAIDG KDKGEAENEA KPIDVKSLLP
Length:180
Mass (Da):20,538
Last modified:December 20, 2005 - 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:iB31860402432C171
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti24 – 29AFAKRE → GSPNQ in CAA48368 (PubMed:7690854).Curated6
Sequence conflicti165 – 175EAENEAKPIDV → DRRTKPSLSTF in CAA48368 (PubMed:7690854).CuratedAdd BLAST11

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...EMBLi

GenBank nucleotide sequence database

More...GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...DDBJi
Links Updated
X68301 Genomic DNA Translation: CAA48368.1
U00096 Genomic DNA Translation: AAC75341.1
AP009048 Genomic DNA Translation: BAA16109.2

Protein sequence database of the Protein Information Resource

More...PIRi		G64999

NCBI Reference Sequences

More...RefSeqi		NP_416784.1, NC_000913.3
WP_000172749.1, NZ_STEB01000008.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...EnsemblBacteriai		AAC75341; AAC75341; b2281
BAA16109; BAA16109; BAA16109

Database of genes from NCBI RefSeq genomes

More...GeneIDi		58462906
946757

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		ecj:JW2276
eco:b2281

Pathosystems Resource Integration Center (PATRIC)

More...PATRICi		fig|511145.12.peg.2374

<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
X68301 Genomic DNA Translation: CAA48368.1
U00096 Genomic DNA Translation: AAC75341.1
AP009048 Genomic DNA Translation: BAA16109.2
PIRiG64999
RefSeqiNP_416784.1, NC_000913.3
WP_000172749.1, NZ_STEB01000008.1

3D structure databases

SMRiP0AFD6
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi4260510, 80 interactors
ComplexPortaliCPX-243, Respiratory chain complex I
DIPiDIP-35918N
IntActiP0AFD6, 8 interactors
STRINGi511145.b2281

Protein family/group databases

TCDBi3.D.1.1.1, the h(+) or na(+)-translocating nadh dehydrogenase (ndh) family

Proteomic databases

jPOSTiP0AFD6
PaxDbiP0AFD6
PRIDEiP0AFD6

Genome annotation databases

EnsemblBacteriaiAAC75341; AAC75341; b2281
BAA16109; BAA16109; BAA16109
GeneIDi58462906
946757
KEGGiecj:JW2276
eco:b2281
PATRICifig|511145.12.peg.2374

Organism-specific databases

EchoBASE - an integrated post-genomic database for E. coli

More...EchoBASEi		EB2013

Phylogenomic databases

eggNOGiCOG1143, Bacteria
HOGENOMiCLU_067218_4_3_6
InParanoidiP0AFD6
PhylomeDBiP0AFD6

Enzyme and pathway databases

BioCyciEcoCyc:NUOI-MONOMER
MetaCyc:NUOI-MONOMER

Miscellaneous databases

Protein Ontology

More...PROi		PR:P0AFD6

Family and domain databases

HAMAPiMF_01351, NDH1_NuoI, 1 hit
InterProiView protein in InterPro
IPR017896, 4Fe4S_Fe-S-bd
IPR017900, 4Fe4S_Fe_S_CS
IPR010226, NADH_quinone_OxRdtase_chainI
PANTHERiPTHR10849, PTHR10849, 1 hit
PfamiView protein in Pfam
PF12838, Fer4_7, 1 hit
TIGRFAMsiTIGR01971, NuoI, 1 hit
PROSITEiView protein in PROSITE
PS00198, 4FE4S_FER_1, 2 hits
PS51379, 4FE4S_FER_2, 2 hits

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 nameiNUOI_ECOLI
<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: P0AFD6
Secondary accession number(s): P33604, P76488, P78183
<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: December 20, 2005
Last sequence update: December 20, 2005
Last modified: February 10, 2021
This is version 123 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

Direct protein sequencing, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.

Do not show this banner again