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Entry version 111 (07 Apr 2021)
Sequence version 1 (01 Nov 1996)
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Protein

NADH-ubiquinone oxidoreductase 75 kDa subunit

Gene

NAD11

Organism
Acanthamoeba castellanii (Amoeba)
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>
-Protein inferred from homologyi <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

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 (By similarity). This is the largest subunit of complex I and it is a component of the iron-sulfur (IP) fragment of the enzyme. It may form part of the active site crevice where NADH is oxidized (By similarity).By similarity

<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

Protein has several cofactor binding sites:

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 bindingi36Iron-sulfur 1 (2Fe-2S)By similarity1
Metal bindingi47Iron-sulfur 1 (2Fe-2S)By similarity1
Metal bindingi50Iron-sulfur 1 (2Fe-2S)By similarity1
Metal bindingi64Iron-sulfur 1 (2Fe-2S)By similarity1
Metal bindingi96Iron-sulfur 2 (4Fe-4S); via tele nitrogenPROSITE-ProRule annotation1
Metal bindingi100Iron-sulfur 2 (4Fe-4S)PROSITE-ProRule annotation1
Metal bindingi103Iron-sulfur 2 (4Fe-4S)PROSITE-ProRule annotation1
Metal bindingi109Iron-sulfur 2 (4Fe-4S)PROSITE-ProRule annotation1
Metal bindingi148Iron-sulfur 3 (4Fe-4S)By similarity1
Metal bindingi151Iron-sulfur 3 (4Fe-4S)By similarity1
Metal bindingi154Iron-sulfur 3 (4Fe-4S)By similarity1
Metal bindingi198Iron-sulfur 3 (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

GO - Biological processi

<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 functionOxidoreductase, Translocase
Biological processElectron transport, Respiratory chain, Transport
Ligand2Fe-2S, 4Fe-4S, Iron, Iron-sulfur, Metal-binding, NAD, Ubiquinone

<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-ubiquinone oxidoreductase 75 kDa subunit (EC:7.1.1.2)
Alternative name(s):
Complex I-75kD
Short name:
CI-75kD
NADH dehydrogenase subunit 11
<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:NAD11
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates if the gene coding for the protein originates from the hydrogenosome, the mitochondrion, the nucleomorph, different plastids or a plasmid. The absence of this section means that the gene is located in one of the main chromosomal element(s).<p><a href='/help/encoded_on' target='_top'>More...</a></p>Encoded oniMitochondrion
<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>OrganismiAcanthamoeba castellanii (Amoeba)
<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 identifieri5755 [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 lineageiEukaryotaAmoebozoaDiscoseaLongamoebiaCentramoebidaAcanthamoebidaeAcanthamoeba

<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

Membrane, Mitochondrion, Mitochondrion inner 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_00001185361 – 675NADH-ubiquinone oxidoreductase 75 kDa subunitAdd BLAST675

Proteomic databases

PRoteomics IDEntifications database

More...
PRIDEi
Q37373

<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

Complex I is composed of about 30 different subunits.

By similarity

<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>Domaini2 – 802Fe-2S ferredoxin-typeAdd BLAST79
Domaini80 – 1194Fe-4S His(Cys)3-ligated-typePROSITE-ProRule annotationAdd BLAST40
Domaini217 – 2734Fe-4S Mo/W bis-MGD-typePROSITE-ProRule annotationAdd BLAST57

<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 75 kDa subunit family.Curated

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00207, fer2, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR036010, 2Fe-2S_ferredoxin-like_sf
IPR001041, 2Fe-2S_ferredoxin-type
IPR006656, Mopterin_OxRdtase
IPR006963, Mopterin_OxRdtase_4Fe-4S_dom
IPR000283, NADH_UbQ_OxRdtase_75kDa_su_CS
IPR010228, NADH_UbQ_OxRdtase_Gsu
IPR019574, NADH_UbQ_OxRdtase_Gsu_4Fe4S-bd

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00384, Molybdopterin, 2 hits
PF10588, NADH-G_4Fe-4S_3, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00929, NADH-G_4Fe-4S_3, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF54292, SSF54292, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR01973, NuoG, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS51839, 4FE4S_HC3, 1 hit
PS51669, 4FE4S_MOW_BIS_MGD, 1 hit
PS00642, COMPLEX1_75K_2, 1 hit
PS00643, COMPLEX1_75K_3, 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.

Q37373-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKNISFKVND FQYTINNKLT LIQACLKNKV DISRFCFHEK LSIAGNCRMC
60 70 80 90 100
LVEDLKQVKP LASCAINVSN SMNIYTNTLK VKKARESVLE FLLANHPLDC
110 120 130 140 150
PICDQGGECD LQDQSVVFGS DRGRFYEFKR SVEDKDCGPL IKTIMNRCIH
160 170 180 190 200
CTRCVRFSNE VAGVNILGVT GRGSKMEIGF YIENLMRSEL SGNVIDLCPV
210 220 230 240 250
GALTSKPFAF TSRPWELKSY NSIDVLDSLH SNIRVDIRGT KIMRILPRVN
260 270 280 290 300
SELNEDWITD KIRFSYDSFR RQRLYDPMVK ISGSFLKIGW KKAMLFIKKF
310 320 330 340 350
FCNFLGFNHS SFIPLRGYIG DYLDLETIYT FKKFLLLNGS NFFLPSSSYN
360 370 380 390 400
DLTALYSFNT PLTRLDEGDF CILLDVNLRV ELPIVNSRIK QLVSKKMLPV
410 420 430 440 450
FVLGFYSNFN YFVKHISNSS KTLLHVLEGS HWLSAKISKK FSSKPIFLIG
460 470 480 490 500
DSSSLLKGSL IVPLFNFTNV ICDNWNGLNI ISNDSSYLST KEFNLSSSHS
510 520 530 540 550
QNSHLLNFPI NFVLNYDKAV LVDSSAFQIY QGHHGDTNAI NSNLIFPSTS
560 570 580 590 600
FIEKNSFYSN SLAIVQKTKK ILFSPGNSRD DWKILNALID NFGFSYFKVR
610 620 630 640 650
NSFDLVSFLS ESTPFILYKR SFSFKCFGFY EQLVYHFFNY FSVNNNYYIY
660 670
DSITRNSKIM SLCFNKFKMK GYNFF
Length:675
Mass (Da):77,554
Last modified:November 1, 1996 - 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:i3870F3BC9E8B9807
GO

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
U12386 Genomic DNA Translation: AAD11824.1

Protein sequence database of the Protein Information Resource

More...
PIRi
S53832

NCBI Reference Sequences

More...
RefSeqi
NP_042531.1, NC_001637.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
1734026

<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
U12386 Genomic DNA Translation: AAD11824.1
PIRiS53832
RefSeqiNP_042531.1, NC_001637.1

3D structure databases

Database of comparative protein structure models

More...
ModBasei
Search...

SWISS-MODEL Interactive Workspace

More...
SWISS-MODEL-Workspacei
Submit a new modelling project...

Proteomic databases

PRIDEiQ37373

Genome annotation databases

GeneIDi1734026

Family and domain databases

CDDicd00207, fer2, 1 hit
InterProiView protein in InterPro
IPR036010, 2Fe-2S_ferredoxin-like_sf
IPR001041, 2Fe-2S_ferredoxin-type
IPR006656, Mopterin_OxRdtase
IPR006963, Mopterin_OxRdtase_4Fe-4S_dom
IPR000283, NADH_UbQ_OxRdtase_75kDa_su_CS
IPR010228, NADH_UbQ_OxRdtase_Gsu
IPR019574, NADH_UbQ_OxRdtase_Gsu_4Fe4S-bd
PfamiView protein in Pfam
PF00384, Molybdopterin, 2 hits
PF10588, NADH-G_4Fe-4S_3, 1 hit
SMARTiView protein in SMART
SM00929, NADH-G_4Fe-4S_3, 1 hit
SUPFAMiSSF54292, SSF54292, 1 hit
TIGRFAMsiTIGR01973, NuoG, 1 hit
PROSITEiView protein in PROSITE
PS51839, 4FE4S_HC3, 1 hit
PS51669, 4FE4S_MOW_BIS_MGD, 1 hit
PS00642, COMPLEX1_75K_2, 1 hit
PS00643, COMPLEX1_75K_3, 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 nameiNDUS1_ACACA
<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: Q37373
<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: July 15, 1998
Last sequence update: November 1, 1996
Last modified: April 7, 2021
This is version 111 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)

<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

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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