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Entry version 177 (07 Apr 2021)
Sequence version 1 (01 Jul 1993)
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Protein

Sensor protein BasS

Gene

basS

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 BasS/BasR Autophosphorylates and activates BasR by phosphorylation.1 Publication

<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

  • 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 processTwo-component regulatory system
LigandATP-binding, Nucleotide-binding

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
EcoCyc:BASS-MONOMER
MetaCyc:BASS-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%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:
Sensor protein BasS (EC:2.7.13.3)
<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:basS
Synonyms:pmrB
Ordered Locus Names:b4112, JW4073
<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

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'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 – 13CytoplasmicSequence analysisAdd BLAST13
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'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>Transmembranei14 – 34HelicalSequence analysisAdd BLAST21
Topological domaini35 – 64PeriplasmicSequence analysisAdd BLAST30
Transmembranei65 – 88HelicalSequence analysisAdd BLAST24
Topological domaini89 – 363CytoplasmicSequence analysisAdd BLAST275

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 or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000747011 – 363Sensor protein BasSAdd BLAST363

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 residuei152Phosphohistidine; by autocatalysisPROSITE-ProRule annotation1

<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

Autophosphorylated.

Keywords - PTMi

Phosphoprotein

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...
jPOSTi
P30844

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

More...
PaxDbi
P30844

PRoteomics IDEntifications database

More...
PRIDEi
P30844

<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

The eptA-basRS operon is positively autoregulated by BasR under high iron or aluminum concentration conditions.By similarity

<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
4263084, 4 interactors

Database of interacting proteins

More...
DIPi
DIP-9202N

Protein interaction database and analysis system

More...
IntActi
P30844, 4 interactors

STRING: functional protein association networks

More...
STRINGi
511145.b4112

<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
P30844

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>Domaini89 – 141HAMPPROSITE-ProRule annotationAdd BLAST53
Domaini149 – 357Histidine kinasePROSITE-ProRule annotationAdd BLAST209

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
COG0642, Bacteria

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_000445_89_37_6

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P30844

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P30844

Family and domain databases

Conserved Domains Database

More...
CDDi
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
IPR003660, HAMP_dom
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
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
SM00304, HAMP, 1 hit
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
PS50885, HAMP, 1 hit
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%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.

P30844-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MHFLRRPISL RQRLILTIGA ILLVFELISV FWLWHESTEQ IQLFEQALRD
60 70 80 90 100
NRNNDRHIMR EIREAVASLI VPGVFMVSLT LFICYQAVRR ITRPLAELQK
110 120 130 140 150
ELEARTADNL TPIAIHSATL EIEAVVSALN DLVSRLTSTL DNERLFTADV
160 170 180 190 200
AHELRTPLAG VRLHLELLAK THHIDVAPLV ARLDQMMESV SQLLQLARAG
210 220 230 240 250
QSFSSGNYQH VKLLEDVILP SYDELSTMLD QRQQTLLLPE SAADITVQGD
260 270 280 290 300
ATLLRMLLRN LVENAHRYSP QGSNIMIKLQ EDDGAVMAVE DEGPGIDESK
310 320 330 340 350
CGELSKAFVR MDSRYGGIGL GLSIVSRITQ LHHGQFFLQN RQETSGTRAW
360
VRLKKDQYVA NQI
Length:363
Mass (Da):41,029
Last modified:July 1, 1993 - 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:iA390AAB9EB425750
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
D14055 Genomic DNA Translation: BAA03144.1
U14003 Genomic DNA Translation: AAA97011.1
U00096 Genomic DNA Translation: AAC77073.1
AP009048 Genomic DNA Translation: BAE78114.1

Protein sequence database of the Protein Information Resource

More...
PIRi
JX0285

NCBI Reference Sequences

More...
RefSeqi
NP_418536.1, NC_000913.3
WP_001300761.1, NZ_CP047127.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
AAC77073; AAC77073; b4112
BAE78114; BAE78114; BAE78114

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
948632

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ecj:JW4073
eco:b4112

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|83333.103.peg.419

<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
D14055 Genomic DNA Translation: BAA03144.1
U14003 Genomic DNA Translation: AAA97011.1
U00096 Genomic DNA Translation: AAC77073.1
AP009048 Genomic DNA Translation: BAE78114.1
PIRiJX0285
RefSeqiNP_418536.1, NC_000913.3
WP_001300761.1, NZ_CP047127.1

3D structure databases

SMRiP30844
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi4263084, 4 interactors
DIPiDIP-9202N
IntActiP30844, 4 interactors
STRINGi511145.b4112

Proteomic databases

jPOSTiP30844
PaxDbiP30844
PRIDEiP30844

Genome annotation databases

EnsemblBacteriaiAAC77073; AAC77073; b4112
BAE78114; BAE78114; BAE78114
GeneIDi948632
KEGGiecj:JW4073
eco:b4112
PATRICifig|83333.103.peg.419

Organism-specific databases

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

More...
EchoBASEi
EB1571

Phylogenomic databases

eggNOGiCOG0642, Bacteria
HOGENOMiCLU_000445_89_37_6
InParanoidiP30844
PhylomeDBiP30844

Enzyme and pathway databases

BioCyciEcoCyc:BASS-MONOMER
MetaCyc:BASS-MONOMER
BRENDAi2.7.13.3, 2026

Miscellaneous databases

Protein Ontology

More...
PROi
PR:P30844

Family and domain databases

CDDicd00082, HisKA, 1 hit
Gene3Di3.30.565.10, 1 hit
InterProiView protein in InterPro
IPR003660, HAMP_dom
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
PF02518, HATPase_c, 1 hit
PF00512, HisKA, 1 hit
PRINTSiPR00344, BCTRLSENSOR
SMARTiView protein in SMART
SM00304, HAMP, 1 hit
SM00387, HATPase_c, 1 hit
SM00388, HisKA, 1 hit
SUPFAMiSSF47384, SSF47384, 1 hit
SSF55874, SSF55874, 1 hit
PROSITEiView protein in PROSITE
PS50885, HAMP, 1 hit
PS50109, HIS_KIN, 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 nameiBASS_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: P30844
Secondary accession number(s): Q2M6J2
<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 1, 1993
Last sequence update: July 1, 1993
Last modified: April 7, 2021
This is version 177 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
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