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UniProtKB - B2XQV2 (B2XQV2_HUMAN)

Entry version 72 (18 Sep 2019)
Sequence version 1 (01 Jul 2008)
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Protein

NADH-ubiquinone oxidoreductase chain 4

Gene

ND4

Organism
Homo sapiens (Human)
Status
Unreviewed-Annotation score:

Annotation score:2 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.UniRule annotation

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">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

Complete GO annotation on QuickGO ...

GO - Biological processi

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 functionTranslocaseSAAS annotation
Biological processElectron transport, Respiratory chainUniRule annotation, Transport
LigandNADUniRule annotationSAAS annotation, UbiquinoneUniRule annotationSAAS annotation

<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_and_taxonomy_section">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 chain 4UniRule annotation (EC:7.1.1.2UniRule annotation)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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:ND4Imported
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 oniMitochondrionImported
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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>OrganismiHomo sapiens (Human)Imported
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 identifieri9606 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 lineageiEukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo

<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

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei21 – 41HelicalUniRule annotationAdd BLAST21
Transmembranei148 – 167HelicalUniRule annotationAdd BLAST20
Transmembranei196 – 216HelicalUniRule annotationAdd BLAST21
Transmembranei223 – 244HelicalUniRule annotationAdd BLAST22
Transmembranei256 – 277HelicalUniRule annotationAdd BLAST22
Transmembranei284 – 303HelicalUniRule annotationAdd BLAST20
Transmembranei309 – 330HelicalUniRule annotationAdd BLAST22
Transmembranei351 – 369HelicalUniRule annotationAdd BLAST19
Transmembranei389 – 409HelicalUniRule annotationAdd BLAST21

Keywords - Cellular componenti

Membrane, MitochondrionUniRule annotationImported

<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

Proteomic databases

PRoteomics IDEntifications database

More...PRIDEi		B2XQV2

<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_and_domains_section">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>Domaini1 – 109Oxidored_q5_NInterPro annotationAdd BLAST109
Domaini112 – 398Proton_antipo_MInterPro annotationAdd BLAST287

<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 subunit 4 family.UniRule annotationSAAS annotation

Keywords - Domaini

Transmembrane, Transmembrane helixUniRule annotationSAAS annotation

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		KOG4845 Eukaryota
COG1008 LUCA

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR000260 NADH4_N
IPR010227 NADH_Q_OxRdtase_chainM/4
IPR003918 NADH_UbQ_OxRdtase
IPR001750 ND/Mrp_mem

The PANTHER Classification System

More...PANTHERi		PTHR43507 PTHR43507, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF01059 Oxidored_q5_N, 1 hit
PF00361 Proton_antipo_M, 1 hit

Protein Motif fingerprint database; a protein domain database

More...PRINTSi		PR01437 NUOXDRDTASE4

TIGRFAMs; a protein family database

More...TIGRFAMsi		TIGR01972 NDH_I_M, 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_length">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_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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.

B2XQV2-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MLKLIVPTIM LLPLTWLSKK HMIWINTTTH SLIISIIPLL FFNQINNNLF 
        60         70         80         90        100
SCSLTFSSDP LTTPLLMLTT WLLPLTIMAS QRHLSSEPLS RKKLYLSMLI 
       110        120        130        140        150
SLQISLIMTL TATELIMFYI FFETTLIPTL AIITRWGNQP ERLNAGTYFL 
       160        170        180        190        200
FYTLVGSLPL LIALIYTHNT LGSLNILLLT LTAQELSNSW ANNLMWLAYT 
       210        220        230        240        250
MAFMVKMPLY GLHLWLPKAH VEAPIAGSMV LAAVLLKLGG YGMMRLTLIL 
       260        270        280        290        300
NPLTKHMAYP FLVLSLWGMI MTSSICLRQT DLKSLIAYSS ISHMALVVTA 
       310        320        330        340        350
ILIQTPWSFT GAVILMIAHG LTSSLLFCLA NSNYERTHSR IMILSQGLQT 
       360        370        380        390        400
LLPLMAFWWL LASLANLALP PTINLLGELS VLVTTFSWSN ITLLLTGLNM 
       410        420        430        440        450
LVTALYSLYM FTTTQWGSLT HHINNMKPSF TRENTLMFMH LSPILLLSLN 

PDIITGFSS
Length:459
Mass (Da):51,563
Last modified:July 1, 2008 - 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:i9F8A7A1714892CE3
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
EU092965 Genomic DNA Translation: ABU67959.1
KC345867 Genomic DNA Translation: AGD83235.1
KC345870 Genomic DNA Translation: AGD83274.1
KC345871 Genomic DNA Translation: AGD83287.1
KC345877 Genomic DNA Translation: AGD83365.1
KC345878 Genomic DNA Translation: AGD83378.1
KC345879 Genomic DNA Translation: AGD83391.1
KC345881 Genomic DNA Translation: AGD83417.1
KC345883 Genomic DNA Translation: AGD83443.1
KC345884 Genomic DNA Translation: AGD83456.1
KC345900 Genomic DNA Translation: AGD83664.1
KC345904 Genomic DNA Translation: AGD83716.1
KC345908 Genomic DNA Translation: AGD83768.1
KC345937 Genomic DNA Translation: AGD84145.1
KC345943 Genomic DNA Translation: AGD84223.1
KC345949 Genomic DNA Translation: AGD84301.1
KC346126 Genomic DNA Translation: AGD86602.1
KC346187 Genomic DNA Translation: AGD87395.1
MF381543 Genomic DNA Translation: AUR43208.1

<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
EU092965 Genomic DNA Translation: ABU67959.1
KC345867 Genomic DNA Translation: AGD83235.1
KC345870 Genomic DNA Translation: AGD83274.1
KC345871 Genomic DNA Translation: AGD83287.1
KC345877 Genomic DNA Translation: AGD83365.1
KC345878 Genomic DNA Translation: AGD83378.1
KC345879 Genomic DNA Translation: AGD83391.1
KC345881 Genomic DNA Translation: AGD83417.1
KC345883 Genomic DNA Translation: AGD83443.1
KC345884 Genomic DNA Translation: AGD83456.1
KC345900 Genomic DNA Translation: AGD83664.1
KC345904 Genomic DNA Translation: AGD83716.1
KC345908 Genomic DNA Translation: AGD83768.1
KC345937 Genomic DNA Translation: AGD84145.1
KC345943 Genomic DNA Translation: AGD84223.1
KC345949 Genomic DNA Translation: AGD84301.1
KC346126 Genomic DNA Translation: AGD86602.1
KC346187 Genomic DNA Translation: AGD87395.1
MF381543 Genomic DNA Translation: AUR43208.1

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

PRIDEiB2XQV2

Phylogenomic databases

eggNOGiKOG4845 Eukaryota
COG1008 LUCA

Miscellaneous databases

ChiTaRS: a database of human, mouse and fruit fly chimeric transcripts and RNA-sequencing data

More...ChiTaRSi		ND4 human

Family and domain databases

InterProiView protein in InterPro
IPR000260 NADH4_N
IPR010227 NADH_Q_OxRdtase_chainM/4
IPR003918 NADH_UbQ_OxRdtase
IPR001750 ND/Mrp_mem
PANTHERiPTHR43507 PTHR43507, 1 hit
PfamiView protein in Pfam
PF01059 Oxidored_q5_N, 1 hit
PF00361 Proton_antipo_M, 1 hit
PRINTSiPR01437 NUOXDRDTASE4
TIGRFAMsiTIGR01972 NDH_I_M, 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 nameiB2XQV2_HUMAN
<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: B2XQV2
<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_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/TrEMBL: July 1, 2008
Last sequence update: July 1, 2008
Last modified: September 18, 2019
This is version 72 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 statusiUnreviewed (UniProtKB/TrEMBL)
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.
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