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Entry version 183 (13 Nov 2019)
Sequence version 1 (01 Aug 1988)
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Protein

Phosphate regulon sensor protein PhoR

Gene

phoR

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

Member of the two-component regulatory system PhoR/PhoB involved in the phosphate regulon genes expression. PhoR may function as a membrane-associated protein kinase that phosphorylates PhoB in response to environmental signals.

<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

<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 processPhosphate transport, Transport, Two-component regulatory system
LigandATP-binding, Nucleotide-binding

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
EcoCyc:PHOR-MONOMER
ECOL316407:JW0390-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:
Phosphate regulon sensor protein PhoR (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:phoR
Synonyms:nmpB
Ordered Locus Names:b0400, JW0390
<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

<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 – 9CytoplasmicCurated9
<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>Transmembranei10 – 28HelicalCuratedAdd BLAST19
Topological domaini29 – 32PeriplasmicCurated4
Transmembranei33 – 51HelicalCuratedAdd BLAST19
Topological domaini52 – 431CytoplasmicCuratedAdd BLAST380

GO - Cellular componenti

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_00000748461 – 431Phosphate regulon sensor protein PhoRAdd BLAST431

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 residuei213Phosphohistidine; by autocatalysisPROSITE-ProRule annotation1

Keywords - PTMi

Phosphoprotein

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...
jPOSTi
P08400

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

More...
PaxDbi
P08400

PRoteomics IDEntifications database

More...
PRIDEi
P08400

<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
4262091, 109 interactors

Database of interacting proteins

More...
DIPi
DIP-10502N

Protein interaction database and analysis system

More...
IntActi
P08400, 5 interactors

STRING: functional protein association networks

More...
STRINGi
511145.b0400

<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
P08400

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>Domaini96 – 172PASPROSITE-ProRule annotationAdd BLAST77
Domaini210 – 425Histidine kinasePROSITE-ProRule annotationAdd BLAST216

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG4105BZU Bacteria
ENOG410XNMH LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000223176

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P08400

KEGG Orthology (KO)

More...
KOi
K07636

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P08400

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00082 HisKA, 1 hit
cd00130 PAS, 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
IPR003594 HATPase_C
IPR036890 HATPase_C_sf
IPR005467 His_kinase_dom
IPR003661 HisK_dim/P
IPR036097 HisK_dim/P_sf
IPR000014 PAS
IPR035965 PAS-like_dom_sf
IPR013767 PAS_fold
IPR021766 PhoR
IPR004358 Sig_transdc_His_kin-like_C
IPR014310 Sig_transdc_His_kinase_PhoR

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF02518 HATPase_c, 1 hit
PF00512 HisKA, 1 hit
PF00989 PAS, 1 hit
PF11808 PhoR, 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
SM00091 PAS, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF47384 SSF47384, 1 hit
SSF55785 SSF55785, 1 hit
SSF55874 SSF55874, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR02966 phoR_proteo, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS50109 HIS_KIN, 1 hit
PS50112 PAS, 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.

P08400-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MLERLSWKRL VLELLLCCLP AFILGAFFGY LPWFLLASVT GLLIWHFWNL
60 70 80 90 100
LRLSWWLWVD RSMTPPPGRG SWEPLLYGLH QMQLRNKKRR RELGNLIKRF
110 120 130 140 150
RSGAESLPDA VVLTTEEGGI FWCNGLAQQI LGLRWPEDNG QNILNLLRYP
160 170 180 190 200
EFTQYLKTRD FSRPLNLVLN TGRHLEIRVM PYTHKQLLMV ARDVTQMHQL
210 220 230 240 250
EGARRNFFAN VSHELRTPLT VLQGYLEMMN EQPLEGAVRE KALHTMREQT
260 270 280 290 300
QRMEGLVKQL LTLSKIEAAP THLLNEKVDV PMMLRVVERE AQTLSQKKQT
310 320 330 340 350
FTFEIDNGLK VSGNEDQLRS AISNLVYNAV NHTPEGTHIT VRWQRVPHGA
360 370 380 390 400
EFSVEDNGPG IAPEHIPRLT ERFYRVDKAR SRQTGGSGLG LAIVKHAVNH
410 420 430
HESRLNIEST VGKGTRFSFV IPERLIAKNS D
Length:431
Mass (Da):49,629
Last modified:August 1, 1988 - 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:i33883582AF4B883C
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
X04704 Genomic DNA Translation: CAA28409.1
U73857 Genomic DNA Translation: AAB18124.1
U00096 Genomic DNA Translation: AAC73503.1
AP009048 Genomic DNA Translation: BAE76180.1

Protein sequence database of the Protein Information Resource

More...
PIRi
A25557 RGECFR

NCBI Reference Sequences

More...
RefSeqi
NP_414934.1, NC_000913.3
WP_000893623.1, NZ_SSZK01000009.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
AAC73503; AAC73503; b0400
BAE76180; BAE76180; BAE76180

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
945044

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ecj:JW0390
eco:b0400

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|1411691.4.peg.1878

<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
X04704 Genomic DNA Translation: CAA28409.1
U73857 Genomic DNA Translation: AAB18124.1
U00096 Genomic DNA Translation: AAC73503.1
AP009048 Genomic DNA Translation: BAE76180.1
PIRiA25557 RGECFR
RefSeqiNP_414934.1, NC_000913.3
WP_000893623.1, NZ_SSZK01000009.1

3D structure databases

SMRiP08400
ModBaseiSearch...

Protein-protein interaction databases

BioGridi4262091, 109 interactors
DIPiDIP-10502N
IntActiP08400, 5 interactors
STRINGi511145.b0400

Proteomic databases

jPOSTiP08400
PaxDbiP08400
PRIDEiP08400

Genome annotation databases

EnsemblBacteriaiAAC73503; AAC73503; b0400
BAE76180; BAE76180; BAE76180
GeneIDi945044
KEGGiecj:JW0390
eco:b0400
PATRICifig|1411691.4.peg.1878

Organism-specific databases

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

More...
EchoBASEi
EB0726

Phylogenomic databases

eggNOGiENOG4105BZU Bacteria
ENOG410XNMH LUCA
HOGENOMiHOG000223176
InParanoidiP08400
KOiK07636
PhylomeDBiP08400

Enzyme and pathway databases

BioCyciEcoCyc:PHOR-MONOMER
ECOL316407:JW0390-MONOMER
BRENDAi2.7.13.3 2026

Miscellaneous databases

Protein Ontology

More...
PROi
PR:P08400

Family and domain databases

CDDicd00082 HisKA, 1 hit
cd00130 PAS, 1 hit
Gene3Di3.30.565.10, 1 hit
InterProiView protein in InterPro
IPR003594 HATPase_C
IPR036890 HATPase_C_sf
IPR005467 His_kinase_dom
IPR003661 HisK_dim/P
IPR036097 HisK_dim/P_sf
IPR000014 PAS
IPR035965 PAS-like_dom_sf
IPR013767 PAS_fold
IPR021766 PhoR
IPR004358 Sig_transdc_His_kin-like_C
IPR014310 Sig_transdc_His_kinase_PhoR
PfamiView protein in Pfam
PF02518 HATPase_c, 1 hit
PF00512 HisKA, 1 hit
PF00989 PAS, 1 hit
PF11808 PhoR, 1 hit
PRINTSiPR00344 BCTRLSENSOR
SMARTiView protein in SMART
SM00387 HATPase_c, 1 hit
SM00388 HisKA, 1 hit
SM00091 PAS, 1 hit
SUPFAMiSSF47384 SSF47384, 1 hit
SSF55785 SSF55785, 1 hit
SSF55874 SSF55874, 1 hit
TIGRFAMsiTIGR02966 phoR_proteo, 1 hit
PROSITEiView protein in PROSITE
PS50109 HIS_KIN, 1 hit
PS50112 PAS, 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 nameiPHOR_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: P08400
Secondary accession number(s): Q2MC26
<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: August 1, 1988
Last sequence update: August 1, 1988
Last modified: November 13, 2019
This is version 183 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

Complete proteome, Reference proteome

Documents

  1. Escherichia coli
    Escherichia coli (strain K12): entries and cross-references to EcoGene
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