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Entry version 116 (22 Apr 2020)
Sequence version 1 (20 Dec 2005)
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Protein

Nitrate/nitrite response regulator protein NarL

Gene

narL

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

Annotation score:5 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

This protein activates the expression of the nitrate reductase (narGHJI) and formate dehydrogenase-N (fdnGHI) operons and represses the transcription of the fumarate reductase (frdABCD) operon in response to a nitrate/nitrite induction signal transmitted by either the NarX or NarQ proteins.

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section specifies the position and type of each DNA-binding domain present within the protein.<p><a href='/help/dna_bind' target='_top'>More...</a></p>DNA bindingi173 – 192H-T-H motifPROSITE-ProRule annotationAdd BLAST20

<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 functionActivator, DNA-binding, Repressor
Biological processNitrate assimilation, Transcription, Transcription regulation, Two-component regulatory system
LigandATP-binding, Nucleotide-binding

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
EcoCyc:NARL-MONOMER
ECOL316407:JW1212-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:
Nitrate/nitrite response regulator protein NarL
<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:narL
Synonyms:frdR
Ordered Locus Names:b1221, JW1212
<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 lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia
<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

GO - Cellular componenti

<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_00000811451 – 216Nitrate/nitrite response regulator protein NarLAdd BLAST216

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei594-aspartylphosphatePROSITE-ProRule annotation1

Keywords - PTMi

Phosphoprotein

Proteomic databases

Encyclopedia of Proteome Dynamics

More...
EPDi
P0AF28

jPOST - Japan Proteome Standard Repository/Database

More...
jPOSTi
P0AF28

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

More...
PaxDbi
P0AF28

PRoteomics IDEntifications database

More...
PRIDEi
P0AF28

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

Gene expression databases

CollecTF database of bacterial transcription factor binding sites

More...
CollecTFi
EXPREG_00000880

<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%27">Interaction</a> section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="https://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated at every <a href="http://www.uniprot.org/help/synchronization">UniProt release</a>.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGrid)

More...
BioGridi
4261632, 23 interactors
850162, 1 interactor

Database of interacting proteins

More...
DIPi
DIP-35941N

Protein interaction database and analysis system

More...
IntActi
P0AF28, 5 interactors

STRING: functional protein association networks

More...
STRINGi
511145.b1221

<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

1216
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

More...
SMRi
P0AF28

Database of comparative protein structure models

More...
ModBasei
Search...

Protein Data Bank in Europe - Knowledge Base

More...
PDBe-KBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
P0AF28

<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>Domaini8 – 124Response regulatoryPROSITE-ProRule annotationAdd BLAST117
Domaini149 – 214HTH luxR-typePROSITE-ProRule annotationAdd BLAST66

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG4105WH1 Bacteria
COG2197 LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_000445_90_8_6

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P0AF28

KEGG Orthology (KO)

More...
KOi
K07684

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P0AF28

Family and domain databases

Conserved Domains Database

More...
CDDi
cd06170 LuxR_C_like, 1 hit
cd00156 REC, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.10.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR011006 CheY-like_superfamily
IPR016032 Sig_transdc_resp-reg_C-effctor
IPR001789 Sig_transdc_resp-reg_receiver
IPR000792 Tscrpt_reg_LuxR_C
IPR036388 WH-like_DNA-bd_sf

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00196 GerE, 1 hit
PF00072 Response_reg, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00038 HTHLUXR

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00421 HTH_LUXR, 1 hit
SM00448 REC, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF46894 SSF46894, 1 hit
SSF52172 SSF52172, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00622 HTH_LUXR_1, 1 hit
PS50043 HTH_LUXR_2, 1 hit
PS50110 RESPONSE_REGULATORY, 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.

P0AF28-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MSNQEPATIL LIDDHPMLRT GVKQLISMAP DITVVGEASN GEQGIELAES
60 70 80 90 100
LDPDLILLDL NMPGMNGLET LDKLREKSLS GRIVVFSVSN HEEDVVTALK
110 120 130 140 150
RGADGYLLKD MEPEDLLKAL HQAAAGEMVL SEALTPVLAA SLRANRATTE
160 170 180 190 200
RDVNQLTPRE RDILKLIAQG LPNKMIARRL DITESTVKVH VKHMLKKMKL
210
KSRVEAAVWV HQERIF
Length:216
Mass (Da):23,927
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:i7DED78E4EF7EC57D
GO

<p>This subsection of the 'Sequence' section reports difference(s) between the protein sequence shown in the UniProtKB entry and other available protein sequences derived from the same gene.<p><a href='/help/sequence_caution' target='_top'>More...</a></p>Sequence cautioni

The sequence CAA33023 differs from that shown. Reason: Erroneous initiation.Curated

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 conflicti115D → H in AAA24199 (PubMed:2649492).Curated1

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
X13360 Genomic DNA Translation: CAA31742.1
M24910 Genomic DNA Translation: AAA24199.1
X14884 Genomic DNA Translation: CAA33023.1 Different initiation.
X69189 Genomic DNA Translation: CAA48935.1
U00096 Genomic DNA Translation: AAC74305.1
AP009048 Genomic DNA Translation: BAA36089.1

Protein sequence database of the Protein Information Resource

More...
PIRi
S09285 RGECNL

NCBI Reference Sequences

More...
RefSeqi
NP_415739.1, NC_000913.3
WP_000070491.1, NZ_STEB01000023.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
AAC74305; AAC74305; b1221
BAA36089; BAA36089; BAA36089

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
945795

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ecj:JW1212
eco:b1221

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|1411691.4.peg.1061

<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
X13360 Genomic DNA Translation: CAA31742.1
M24910 Genomic DNA Translation: AAA24199.1
X14884 Genomic DNA Translation: CAA33023.1 Different initiation.
X69189 Genomic DNA Translation: CAA48935.1
U00096 Genomic DNA Translation: AAC74305.1
AP009048 Genomic DNA Translation: BAA36089.1
PIRiS09285 RGECNL
RefSeqiNP_415739.1, NC_000913.3
WP_000070491.1, NZ_STEB01000023.1

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...
PDBei

Protein Data Bank RCSB

More...
RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1A04X-ray2.20A/B2-216[»]
1JE8X-ray2.12A/B/E/F147-216[»]
1RNLX-ray2.40A2-216[»]
1ZG1X-ray2.30A/B/E/F147-216[»]
1ZG5X-ray2.30A/B/E/F147-216[»]
SMRiP0AF28
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

BioGridi4261632, 23 interactors
850162, 1 interactor
DIPiDIP-35941N
IntActiP0AF28, 5 interactors
STRINGi511145.b1221

Proteomic databases

EPDiP0AF28
jPOSTiP0AF28
PaxDbiP0AF28
PRIDEiP0AF28

Genome annotation databases

EnsemblBacteriaiAAC74305; AAC74305; b1221
BAA36089; BAA36089; BAA36089
GeneIDi945795
KEGGiecj:JW1212
eco:b1221
PATRICifig|1411691.4.peg.1061

Organism-specific databases

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

More...
EchoBASEi
EB0637

Phylogenomic databases

eggNOGiENOG4105WH1 Bacteria
COG2197 LUCA
HOGENOMiCLU_000445_90_8_6
InParanoidiP0AF28
KOiK07684
PhylomeDBiP0AF28

Enzyme and pathway databases

BioCyciEcoCyc:NARL-MONOMER
ECOL316407:JW1212-MONOMER

Miscellaneous databases

EvolutionaryTraceiP0AF28

Protein Ontology

More...
PROi
PR:P0AF28

Gene expression databases

CollecTFiEXPREG_00000880

Family and domain databases

CDDicd06170 LuxR_C_like, 1 hit
cd00156 REC, 1 hit
Gene3Di1.10.10.10, 1 hit
InterProiView protein in InterPro
IPR011006 CheY-like_superfamily
IPR016032 Sig_transdc_resp-reg_C-effctor
IPR001789 Sig_transdc_resp-reg_receiver
IPR000792 Tscrpt_reg_LuxR_C
IPR036388 WH-like_DNA-bd_sf
PfamiView protein in Pfam
PF00196 GerE, 1 hit
PF00072 Response_reg, 1 hit
PRINTSiPR00038 HTHLUXR
SMARTiView protein in SMART
SM00421 HTH_LUXR, 1 hit
SM00448 REC, 1 hit
SUPFAMiSSF46894 SSF46894, 1 hit
SSF52172 SSF52172, 1 hit
PROSITEiView protein in PROSITE
PS00622 HTH_LUXR_1, 1 hit
PS50043 HTH_LUXR_2, 1 hit
PS50110 RESPONSE_REGULATORY, 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 nameiNARL_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: P0AF28
Secondary accession number(s): P10957
<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: April 22, 2020
This is version 116 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, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
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