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Protein

Sensor protein QseC

Gene

qseC

Organism
Escherichia coli (strain K12)
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>
-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

Member of a two-component regulatory system QseB/QseC. Activates the flagella regulon by activating transcription of FlhDC. May activate QseB by phosphorylation.1 Publication

<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

  • ATP + protein L-histidine = ADP + protein N-phospho-L-histidine. EC:2.7.13.3

<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

  • phosphorelay signal transduction system Source: GO_Central

<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 functionKinase, Transferase
Biological processTwo-component regulatory system
LigandATP-binding, Nucleotide-binding

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
EcoCyc:EG12658-MONOMER

BRENDA Comprehensive Enzyme Information System

More...
BRENDAi
2.7.13.3 2026

<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:
Sensor protein QseC (EC:2.7.13.3)
<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:qseC
Synonyms:ygiY
Ordered Locus Names:b3026, JW2994
<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 lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia
<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

Organism-specific databases

Escherichia coli strain K12 genome database

More...
EcoGenei
EG13027 qseC

<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

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 subcellular compartment where each non-membrane region of a membrane-spanning protein is found.<p><a href='/help/topo_dom' target='_top'>More...</a></p>Topological domaini1 – 12CytoplasmicSequence analysisAdd BLAST12
<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>Transmembranei13 – 33HelicalSequence analysisAdd BLAST21
Topological domaini34 – 156PeriplasmicSequence analysisAdd BLAST123
Transmembranei157 – 177HelicalSequence analysisAdd BLAST21
Topological domaini178 – 449CytoplasmicSequence analysisAdd BLAST272

GO - Cellular componenti

  • integral component of membrane Source: UniProtKB-KW
  • plasma membrane Source: EcoCyc

Keywords - Cellular componenti

Cell inner membrane, Cell membrane, 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.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000747031 – 449Sensor protein QseCAdd BLAST449

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 residuei246Phosphohistidine; by autocatalysisPROSITE-ProRule annotation1

Keywords - PTMi

Phosphoprotein

Proteomic databases

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

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PaxDbi
P40719

PRoteomics IDEntifications database

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PRIDEi
P40719

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

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iPTMneti
P40719

<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

<p>This subsection of the ‘Expression’ section reports the experimentally proven effects of inducers and repressors (usually chemical compounds or environmental factors) on the level of protein (or mRNA) expression (up-regulation, down-regulation, constitutive expression).<p><a href='/help/induction' target='_top'>More...</a></p>Inductioni

By the signal autoinducer AI-2, through MqsR.1 Publication

<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
4259459, 16 interactors

Protein interaction database and analysis system

More...
IntActi
P40719, 6 interactors

STRING: functional protein association networks

More...
STRINGi
316385.ECDH10B_3200

<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

1449
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

Database of protein disorder

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DisProti
DP00774

Protein Model Portal of the PSI-Nature Structural Biology Knowledgebase

More...
ProteinModelPortali
P40719

SWISS-MODEL Repository - a database of annotated 3D protein structure models

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SMRi
P40719

Database of comparative protein structure models

More...
ModBasei
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
P40719

<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>Domaini243 – 449Histidine kinasePROSITE-ProRule annotationAdd BLAST207

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG4105DHQ Bacteria
ENOG410XS4R LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000223178

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P40719

KEGG Orthology (KO)

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KOi
K07645

Database for complete collections of gene phylogenies

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PhylomeDBi
P40719

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00075 HATPase_c, 1 hit
cd00082 HisKA, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.30.565.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR013727 2CSK_N
IPR003594 HATPase_C
IPR036890 HATPase_C_sf
IPR005467 His_kinase_dom
IPR003661 HisK_dim/P
IPR036097 HisK_dim/P_sf
IPR004358 Sig_transdc_His_kin-like_C

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF08521 2CSK_N, 1 hit
PF02518 HATPase_c, 1 hit
PF00512 HisKA, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00344 BCTRLSENSOR

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00387 HATPase_c, 1 hit
SM00388 HisKA, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF47384 SSF47384, 1 hit
SSF55874 SSF55874, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS50109 HIS_KIN, 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>.<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.

P40719-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKFTQRLSLR VRLTLIFLIL ASVTWLLSSF VAWKQTTDNV DELFDTQLML
60 70 80 90 100
FAKRLSTLDL NEINAADRMA QTPNRLKHGH VDDDALTFAI FTHDGRMVLN
110 120 130 140 150
DGDNGEDIPY SYQREGFADG QLVGEDDPWR FVWMTSPDGK YRIVVGQEWE
160 170 180 190 200
YREDMALAIV AGQLIPWLVA LPIMLIIMMV LLGRELAPLN KLALALRMRD
210 220 230 240 250
PDSEKPLNAT GVPSEVRPLV ESLNQLFART HAMMVRERRF TSDAAHELRS
260 270 280 290 300
PLTALKVQTE VAQLSDDDPQ ARKKALLQLH SGIDRATRLV DQLLTLSRLD
310 320 330 340 350
SLDNLQDVAE IPLEDLLQSS VMDIYHTAQQ AKIDVRLTLN AHSIKRTGQP
360 370 380 390 400
LLLSLLVRNL LDNAVRYSPQ GSVVDVTLNA DNFIVRDNGP GVTPEALARI
410 420 430 440
GERFYRPPGQ TATGSGLGLS IVQRIAKLHG MNVEFGNAEQ GGFEAKVSW
Length:449
Mass (Da):50,282
Last modified:October 1, 1996 - v2
<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:i9F00CB507FDFA715
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

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EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
U28377 Genomic DNA Translation: AAA69194.1
U00096 Genomic DNA Translation: AAC76062.1
AP009048 Genomic DNA Translation: BAE77082.1
U18656 Genomic DNA No translation available.

Protein sequence database of the Protein Information Resource

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PIRi
H65089

NCBI Reference Sequences

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RefSeqi
NP_417498.1, NC_000913.3
WP_000673402.1, NZ_LN832404.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
AAC76062; AAC76062; b3026
BAE77082; BAE77082; BAE77082

Database of genes from NCBI RefSeq genomes

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GeneIDi
947174

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ecj:JW2994
eco:b3026

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|1411691.4.peg.3704

<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
U28377 Genomic DNA Translation: AAA69194.1
U00096 Genomic DNA Translation: AAC76062.1
AP009048 Genomic DNA Translation: BAE77082.1
U18656 Genomic DNA No translation available.
PIRiH65089
RefSeqiNP_417498.1, NC_000913.3
WP_000673402.1, NZ_LN832404.1

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
2KSENMR-A2-185[»]
3JZ3X-ray2.50A/B236-449[»]
DisProtiDP00774
ProteinModelPortaliP40719
SMRiP40719
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi4259459, 16 interactors
IntActiP40719, 6 interactors
STRINGi316385.ECDH10B_3200

PTM databases

iPTMnetiP40719

Proteomic databases

PaxDbiP40719
PRIDEiP40719

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAC76062; AAC76062; b3026
BAE77082; BAE77082; BAE77082
GeneIDi947174
KEGGiecj:JW2994
eco:b3026
PATRICifig|1411691.4.peg.3704

Organism-specific databases

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

More...
EchoBASEi
EB2845
EcoGeneiEG13027 qseC

Phylogenomic databases

eggNOGiENOG4105DHQ Bacteria
ENOG410XS4R LUCA
HOGENOMiHOG000223178
InParanoidiP40719
KOiK07645
PhylomeDBiP40719

Enzyme and pathway databases

BioCyciEcoCyc:EG12658-MONOMER
BRENDAi2.7.13.3 2026

Miscellaneous databases

EvolutionaryTraceiP40719

Protein Ontology

More...
PROi
PR:P40719

Family and domain databases

CDDicd00075 HATPase_c, 1 hit
cd00082 HisKA, 1 hit
Gene3Di3.30.565.10, 1 hit
InterProiView protein in InterPro
IPR013727 2CSK_N
IPR003594 HATPase_C
IPR036890 HATPase_C_sf
IPR005467 His_kinase_dom
IPR003661 HisK_dim/P
IPR036097 HisK_dim/P_sf
IPR004358 Sig_transdc_His_kin-like_C
PfamiView protein in Pfam
PF08521 2CSK_N, 1 hit
PF02518 HATPase_c, 1 hit
PF00512 HisKA, 1 hit
PRINTSiPR00344 BCTRLSENSOR
SMARTiView protein in SMART
SM00387 HATPase_c, 1 hit
SM00388 HisKA, 1 hit
SUPFAMiSSF47384 SSF47384, 1 hit
SSF55874 SSF55874, 1 hit
PROSITEiView protein in PROSITE
PS50109 HIS_KIN, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
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 nameiQSEC_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: P40719
Secondary accession number(s): Q2M9H4
<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: February 1, 1995
Last sequence update: October 1, 1996
Last modified: December 5, 2018
This is version 154 of the entry and version 2 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, Complete proteome, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. Escherichia coli
    Escherichia coli (strain K12): entries and cross-references to EcoGene
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