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Entry version 66 (26 Feb 2020)
Sequence version 1 (16 Jun 2009)
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Protein

Periplasmic nitrate reductase

Gene

napA

Organism
Vibrio cholerae serotype O1 (strain M66-2)
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>
-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

Catalytic subunit of the periplasmic nitrate reductase complex NapAB. Receives electrons from NapB and catalyzes the reduction of nitrate to nitrite.UniRule annotation

<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 bindingi48Iron-sulfur (4Fe-4S)UniRule annotation1
Metal bindingi51Iron-sulfur (4Fe-4S)UniRule annotation1
Metal bindingi55Iron-sulfur (4Fe-4S)UniRule annotation1
Metal bindingi83Iron-sulfur (4Fe-4S)UniRule annotation1
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei85Mo-bis(molybdopterin guanine dinucleotide)UniRule annotation1
Binding sitei152Mo-bis(molybdopterin guanine dinucleotide)UniRule annotation1
Binding sitei177Mo-bis(molybdopterin guanine dinucleotide)UniRule annotation1
Binding sitei181Mo-bis(molybdopterin guanine dinucleotide)UniRule annotation1
Binding sitei374Mo-bis(molybdopterin guanine dinucleotide); via amide nitrogenUniRule annotation1
Binding sitei378Mo-bis(molybdopterin guanine dinucleotide)UniRule annotation1
Binding sitei484Mo-bis(molybdopterin guanine dinucleotide); via amide nitrogenUniRule annotation1
Binding sitei533Mo-bis(molybdopterin guanine dinucleotide)UniRule annotation1
Binding sitei560Mo-bis(molybdopterin guanine dinucleotide)UniRule annotation1
Binding sitei794Substrate; via amide nitrogenUniRule annotation1
Binding sitei802Mo-bis(molybdopterin guanine dinucleotide)UniRule annotation1
Binding sitei819Mo-bis(molybdopterin guanine dinucleotide)UniRule annotation1

<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
Biological processElectron transport, Nitrate assimilation, Transport
Ligand4Fe-4S, Iron, Iron-sulfur, Metal-binding, Molybdenum

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
VCHO579112:G1GU3-3342-MONOMER

<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:
Periplasmic nitrate reductaseUniRule annotation (EC:1.9.6.1UniRule annotation)
<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:napAUniRule annotation
Ordered Locus Names:VCM66_A0636
<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>OrganismiVibrio cholerae serotype O1 (strain M66-2)
<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 identifieri579112 [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 lineageiBacteriaProteobacteriaGammaproteobacteriaVibrionalesVibrionaceaeVibrio
<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
  • UP000001217 <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 II

<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

Periplasm

<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 denotes the presence of an N-terminal signal peptide.<p><a href='/help/signal' target='_top'>More...</a></p>Signal peptidei1 – 29Tat-type signalUniRule annotationAdd BLAST29
<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_100018637730 – 829Periplasmic nitrate reductaseUniRule annotationAdd BLAST800

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

Predicted to be exported by the Tat system. The position of the signal peptide cleavage has not been experimentally proven.UniRule annotation

<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

Component of the periplasmic nitrate reductase NapAB complex composed of NapA and NapB.

UniRule annotation

<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
C3LVU3

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>Domaini41 – 974Fe-4S Mo/W bis-MGD-typeUniRule annotationAdd BLAST57

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni214 – 221Mo-bis(molybdopterin guanine dinucleotide) bindingUniRule annotation8
Regioni245 – 249Mo-bis(molybdopterin guanine dinucleotide) bindingUniRule annotation5
Regioni264 – 266Mo-bis(molybdopterin guanine dinucleotide) bindingUniRule annotation3
Regioni510 – 511Mo-bis(molybdopterin guanine dinucleotide) bindingUniRule annotation2
Regioni718 – 727Mo-bis(molybdopterin guanine dinucleotide) bindingUniRule annotation10

<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 prokaryotic molybdopterin-containing oxidoreductase family. NasA/NapA/NarB subfamily.UniRule annotation

Keywords - Domaini

Signal

Phylogenomic databases

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_000422_13_4_6

KEGG Orthology (KO)

More...
KOi
K02567

Identification of Orthologs from Complete Genome Data

More...
OMAi
IISAPYE

Family and domain databases

Conserved Domains Database

More...
CDDi
cd02791 MopB_CT_Nitrate-R-NapA-like, 1 hit

HAMAP database of protein families

More...
HAMAPi
MF_01630 Nitrate_reduct_NapA, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR009010 Asp_de-COase-like_dom_sf
IPR041957 CT_Nitrate-R-NapA-like
IPR006657 MoPterin_dinucl-bd_dom
IPR006656 Mopterin_OxRdtase
IPR006963 Mopterin_OxRdtase_4Fe-4S_dom
IPR027467 MopterinOxRdtase_cofactor_BS
IPR010051 Periplasm_NO3_reductase_lsu
IPR006311 TAT_signal

The PANTHER Classification System

More...
PANTHERi
PTHR11615:SF123 PTHR11615:SF123, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF04879 Molybdop_Fe4S4, 1 hit
PF00384 Molybdopterin, 1 hit
PF01568 Molydop_binding, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00926 Molybdop_Fe4S4, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF50692 SSF50692, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR01706 NAPA, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS51669 4FE4S_MOW_BIS_MGD, 1 hit
PS00551 MOLYBDOPTERIN_PROK_1, 1 hit
PS51318 TAT, 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.

<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 in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

C3LVU3-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKMTRRAFVK ANAAASAAAV AGITLPASAT NLIASSDQTA IHWDKAPCRF
60 70 80 90 100
CGTGCSVLVG TQDGRVVATQ GDPEAPVNKG LNCIKGYFLS KIMYGQDRLK
110 120 130 140 150
TPLLRMKDGQ YHKDGEFTPV SWDTAFDVMA EKWKASLKTK GPTSVGMFGS
160 170 180 190 200
GQWTVMEGYA AVKLMKAGFR SNNIDPNARH CMASAVVGFM RTFGIDEPMG
210 220 230 240 250
CYDDFEHADA FVLWGSNMAE MHPVLWTRIT DRRLSHPHVK VNVLSTYYHR
260 270 280 290 300
SFELADHGYI FHPQSDLAIA NFIANYIIQN DAVNWDFVNK HTHFKQAVTD
310 320 330 340 350
IGYGLRDDHP LQKKAKNANS GDVSDISFEE YKKSVAPYTV EKASEISGVS
360 370 380 390 400
PDKLITLAKQ YADPNTKVMS LWTMGMNQHT RGVWMQSLVY NLHLLTGKIA
410 420 430 440 450
TPGNSPFSLT GQPSACGTAR EVGTFAHRLP ADMVVANPKH RAIAEKVWKL
460 470 480 490 500
PEGTIPEKPG FHAVQQDRML KDGVLNCYWV QCNNNMQAGP NINEERLPGY
510 520 530 540 550
RNPENFIVVS DAYPTVTAQA ADLVLPTAMW VEKEGAYGNA ERRTQVWYQQ
560 570 580 590 600
VKTVGESHSD SWQVIEFSKR FKVEDVWPEE LLAKAPQYRG KTLYDVLFKN
610 620 630 640 650
GQVDKFPLSE ARELNDDAHH FGFYIQKGLF EEYAEFGRGH GHDLAPYDVY
660 670 680 690 700
HQVRGLRWPV VDGKETKWRF KEGSDPYAKA GSGWDFYGKP DGKAWIISSP
710 720 730 740 750
YEAPPEMPNE EYDLWLCTGR VLEHWHTGTM TRRVPELYKA VPDALCFMHH
760 770 780 790 800
EDAQARGLRR GDEVLISNSR GEVRVRVETR GRNKPPKGLV FVPFFDARIL
810 820
VNKLILDATD PLSKQTDFKK CPVKITKVA
Length:829
Mass (Da):93,106
Last modified:June 16, 2009 - 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:i6B9BEE7A10D99975
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
CP001234 Genomic DNA Translation: ACP07598.1

NCBI Reference Sequences

More...
RefSeqi
WP_000784576.1, NC_012580.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
ACP07598; ACP07598; VCM66_A0636

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
vcm:VCM66_A0636

<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
CP001234 Genomic DNA Translation: ACP07598.1
RefSeqiWP_000784576.1, NC_012580.1

3D structure databases

SMRiC3LVU3
ModBaseiSearch...

Genome annotation databases

EnsemblBacteriaiACP07598; ACP07598; VCM66_A0636
KEGGivcm:VCM66_A0636

Phylogenomic databases

HOGENOMiCLU_000422_13_4_6
KOiK02567
OMAiIISAPYE

Enzyme and pathway databases

BioCyciVCHO579112:G1GU3-3342-MONOMER

Family and domain databases

CDDicd02791 MopB_CT_Nitrate-R-NapA-like, 1 hit
HAMAPiMF_01630 Nitrate_reduct_NapA, 1 hit
InterProiView protein in InterPro
IPR009010 Asp_de-COase-like_dom_sf
IPR041957 CT_Nitrate-R-NapA-like
IPR006657 MoPterin_dinucl-bd_dom
IPR006656 Mopterin_OxRdtase
IPR006963 Mopterin_OxRdtase_4Fe-4S_dom
IPR027467 MopterinOxRdtase_cofactor_BS
IPR010051 Periplasm_NO3_reductase_lsu
IPR006311 TAT_signal
PANTHERiPTHR11615:SF123 PTHR11615:SF123, 1 hit
PfamiView protein in Pfam
PF04879 Molybdop_Fe4S4, 1 hit
PF00384 Molybdopterin, 1 hit
PF01568 Molydop_binding, 1 hit
SMARTiView protein in SMART
SM00926 Molybdop_Fe4S4, 1 hit
SUPFAMiSSF50692 SSF50692, 1 hit
TIGRFAMsiTIGR01706 NAPA, 1 hit
PROSITEiView protein in PROSITE
PS51669 4FE4S_MOW_BIS_MGD, 1 hit
PS00551 MOLYBDOPTERIN_PROK_1, 1 hit
PS51318 TAT, 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 nameiNAPA_VIBCM
<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: C3LVU3
<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 28, 2009
Last sequence update: June 16, 2009
Last modified: February 26, 2020
This is version 66 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

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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