Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
The new UniProt website is here! Take me to UniProt BETA

UniProtKB - P0AF63 (NSRR_ECOLI)

Entry version 120 (02 Jun 2021)
Sequence version 1 (20 Dec 2005)
Previous versions | rss
Add a publicationFeedback
Protein

HTH-type transcriptional repressor NsrR

Gene

nsrR

Organism
Escherichia coli (strain K12)
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

Nitric oxide-sensitive repressor of genes involved in protecting the cell against nitrosative stress, such as ytfE, hmpA and ygbA. May require iron for activity. Does not regulates its own transcription.

1 Publication

<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

[2Fe-2S] clusterCuratedNote: Binds 1 [2Fe-2S] cluster per subunit.Curated

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">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 bindingi91Iron-sulfur (2Fe-2S)Sequence analysis1
Metal bindingi96Iron-sulfur (2Fe-2S)Sequence analysis1
Metal bindingi102Iron-sulfur (2Fe-2S)Sequence analysis1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">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 bindingi28 – 51H-T-H motifBy similarityAdd BLAST24

<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 functionDNA-binding, Repressor
Biological processTranscription, Transcription regulation
Ligand2Fe-2S, Iron, Iron-sulfur, Metal-binding

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...BioCyci		EcoCyc:EG11212-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_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:
HTH-type transcriptional repressor NsrR
<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:nsrR
Synonyms:yjeB
Ordered Locus Names:b4178, JW4136
<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>OrganismiEscherichia coli (strain K12)
<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 identifieri83333 [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 lineageiBacteria › Proteobacteria › Gammaproteobacteria › Enterobacterales › Enterobacteriaceae › Escherichia ›
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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_manual">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

<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_00001095551 – 141HTH-type transcriptional repressor NsrRAdd BLAST141

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...jPOSTi		P0AF63

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

More...PaxDbi		P0AF63

PRoteomics IDEntifications database

More...PRIDEi		P0AF63

<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

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...BioGRIDi		4262026, 16 interactors

Database of interacting proteins

More...DIPi		DIP-48211N

Protein interaction database and analysis system

More...IntActi		P0AF63, 1 interactor

STRING: functional protein association networks

More...STRINGi		511145.b4178

<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		P0AF63

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_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>Domaini2 – 129HTH rrf2-typeAdd BLAST128

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		COG1959, Bacteria

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_107144_2_1_6

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		P0AF63

Database for complete collections of gene phylogenies

More...PhylomeDBi		P0AF63

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		1.10.10.10, 1 hit

HAMAP database of protein families

More...HAMAPi		MF_01177, HTH_type_NsrR, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR030489, TR_Rrf2-type_CS
IPR000944, Tscrpt_reg_Rrf2
IPR023761, Tscrpt_rep_HTH_NsrR
IPR036388, WH-like_DNA-bd_sf
IPR036390, WH_DNA-bd_sf

The PANTHER Classification System

More...PANTHERi		PTHR33221, PTHR33221, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF02082, Rrf2, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF46785, SSF46785, 1 hit

TIGRFAMs; a protein family database

More...TIGRFAMsi		TIGR00738, rrf2_super, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS01332, HTH_RRF2_1, 1 hit
PS51197, HTH_RRF2_2, 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.

P0AF63-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MQLTSFTDYG LRALIYMASL PEGRMTSISE VTDVYGVSRN HMVKIINQLS 
        60         70         80         90        100
RAGYVTAVRG KNGGIRLGKP ASAIRIGDVV RELEPLSLVN CSSEFCHITP 
       110        120        130        140 
ACRLKQALSK AVQSFLTELD NYTLADLVEE NQPLYKLLLV E
Length:141
Mass (Da):15,593
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:i6A783840023134D7
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
J04199 Genomic DNA No translation available.
U14003 Genomic DNA Translation: AAA97074.1
U00096 Genomic DNA Translation: AAC77135.1
AP009048 Genomic DNA Translation: BAE78179.1

Protein sequence database of the Protein Information Resource

More...PIRi		S56403

NCBI Reference Sequences

More...RefSeqi		NP_418599.1, NC_000913.3
WP_001177639.1, NZ_SSZK01000052.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...EnsemblBacteriai		AAC77135; AAC77135; b4178
BAE78179; BAE78179; BAE78179

Database of genes from NCBI RefSeq genomes

More...GeneIDi		61734449
948693

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		ecj:JW4136
eco:b4178

Pathosystems Resource Integration Center (PATRIC)

More...PATRICi		fig|1411691.4.peg.2523

<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
J04199 Genomic DNA No translation available.
U14003 Genomic DNA Translation: AAA97074.1
U00096 Genomic DNA Translation: AAC77135.1
AP009048 Genomic DNA Translation: BAE78179.1
PIRiS56403
RefSeqiNP_418599.1, NC_000913.3
WP_001177639.1, NZ_SSZK01000052.1

3D structure databases

SMRiP0AF63
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi4262026, 16 interactors
DIPiDIP-48211N
IntActiP0AF63, 1 interactor
STRINGi511145.b4178

Proteomic databases

jPOSTiP0AF63
PaxDbiP0AF63
PRIDEiP0AF63

Protocols and materials databases

The DNASU plasmid repository

More...DNASUi		948693

Genome annotation databases

EnsemblBacteriaiAAC77135; AAC77135; b4178
BAE78179; BAE78179; BAE78179
GeneIDi61734449
948693
KEGGiecj:JW4136
eco:b4178
PATRICifig|1411691.4.peg.2523

Organism-specific databases

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

More...EchoBASEi		EB1197

Phylogenomic databases

eggNOGiCOG1959, Bacteria
HOGENOMiCLU_107144_2_1_6
InParanoidiP0AF63
PhylomeDBiP0AF63

Enzyme and pathway databases

BioCyciEcoCyc:EG11212-MONOMER

Miscellaneous databases

Protein Ontology

More...PROi		PR:P0AF63

Family and domain databases

Gene3Di1.10.10.10, 1 hit
HAMAPiMF_01177, HTH_type_NsrR, 1 hit
InterProiView protein in InterPro
IPR030489, TR_Rrf2-type_CS
IPR000944, Tscrpt_reg_Rrf2
IPR023761, Tscrpt_rep_HTH_NsrR
IPR036388, WH-like_DNA-bd_sf
IPR036390, WH_DNA-bd_sf
PANTHERiPTHR33221, PTHR33221, 1 hit
PfamiView protein in Pfam
PF02082, Rrf2, 1 hit
SUPFAMiSSF46785, SSF46785, 1 hit
TIGRFAMsiTIGR00738, rrf2_super, 1 hit
PROSITEiView protein in PROSITE
PS01332, HTH_RRF2_1, 1 hit
PS51197, HTH_RRF2_2, 1 hit

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 nameiNSRR_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: P0AF63
Secondary accession number(s): P21498, P72442, Q2M6C7
<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/Swiss-Prot: December 20, 2005
Last sequence update: December 20, 2005
Last modified: June 2, 2021
This is version 120 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

Reference proteome
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