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UniProtKB - P31801 (CHAA_ECOLI)

Entry version 156 (07 Oct 2020)
Sequence version 1 (01 Jul 1993)
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Protein

Sodium-potassium/proton antiporter ChaA

Gene

chaA

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

Sodium exporter that functions mainly at alkaline pH. Can also function as a potassium/proton and calcium/proton antiporter at alkaline pH. Does not play a major role in calcium export.5 Publications

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes regulatory mechanisms for enzymes, transporters or microbial transcription factors, and reports the components which regulate (by activation or inhibition) the reaction.<p><a href='/help/activity_regulation' target='_top'>More...</a></p>Activity regulationi

Pronounced pH dependence. Inhibited by magnesium.1 Publication

<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

Biological processAntiport, Ion transport, Transport
LigandCalcium, Potassium, Sodium

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...BioCyci		EcoCyc:CHAA-MONOMER
MetaCyc:CHAA-MONOMER

Protein family/group databases

Transport Classification Database

More...TCDBi		2.A.19.1.1, the ca(2+):cation antiporter (caca) family

<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:
Sodium-potassium/proton antiporter ChaACurated
Alternative name(s):
Na(+)/H(+) exchanger
<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:chaA
Ordered Locus Names:b1216, JW1207
<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 lineageiBacteria › Proteobacteria › Gammaproteobacteria › Enterobacterales › Enterobacteriaceae › Escherichia ›
<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 – 16CytoplasmicSequence analysisAdd BLAST16
<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>Transmembranei17 – 37HelicalSequence analysisAdd BLAST21
Transmembranei38 – 58HelicalSequence analysisAdd BLAST21
Topological domaini59 – 74CytoplasmicSequence analysisAdd BLAST16
Transmembranei75 – 95HelicalSequence analysisAdd BLAST21
Topological domaini96 – 106PeriplasmicSequence analysisAdd BLAST11
Transmembranei107 – 127HelicalSequence analysisAdd BLAST21
Topological domaini128 – 143CytoplasmicSequence analysisAdd BLAST16
Transmembranei144 – 164HelicalSequence analysisAdd BLAST21
Topological domaini165 – 167PeriplasmicSequence analysis3
Transmembranei168 – 188HelicalSequence analysisAdd BLAST21
Topological domaini189 – 216CytoplasmicSequence analysisAdd BLAST28
Transmembranei217 – 237HelicalSequence analysisAdd BLAST21
Topological domaini238 – 255PeriplasmicSequence analysisAdd BLAST18
Transmembranei256 – 276HelicalSequence analysisAdd BLAST21
Topological domaini277 – 290CytoplasmicSequence analysisAdd BLAST14
Transmembranei291 – 311HelicalSequence analysisAdd BLAST21
Topological domaini312 – 318PeriplasmicSequence analysis7
Transmembranei319 – 339HelicalSequence analysisAdd BLAST21
Topological domaini340 – 345CytoplasmicSequence analysis6
Transmembranei346 – 366HelicalSequence analysisAdd BLAST21

GO - Cellular componenti

Complete GO annotation on QuickGO ...

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_00002095061 – 366Sodium-potassium/proton antiporter ChaAAdd BLAST366

Proteomic databases

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

More...PaxDbi		P31801

PRoteomics IDEntifications database

More...PRIDEi		P31801

<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		4260120, 11 interactors

STRING: functional protein association networks

More...STRINGi		511145.b1216

<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

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes the position of regions of compositional bias within the protein and the particular amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi200 – 209Asp/Glu-rich (acidic)10

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the Ca(2+):cation antiporter (CaCA) (TC 2.A.19) family. [View classification]Curated

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		COG0387, Bacteria

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_050648_0_0_6

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		P31801

KEGG Orthology (KO)

More...KOi		K07300

Database for complete collections of gene phylogenies

More...PhylomeDBi		P31801

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR004713, CaH_exchang
IPR004837, NaCa_Exmemb

Pfam protein domain database

More...Pfami		View protein in Pfam
PF01699, Na_Ca_ex, 2 hits

TIGRFAMs; a protein family database

More...TIGRFAMsi		TIGR00846, caca2, 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.

P31801-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MSNAQEAVKT RHKETSLIFP VLALVVLFLW GSSQTLPVVI AINLLALIGI 
        60         70         80         90        100
LSSAFSVVRH ADVLAHRLGE PYGSLILSLS VVILEVSLIS ALMATGDAAP 
       110        120        130        140        150
TLMRDTLYSI IMIVTGGLVG FSLLLGGRKF ATQYMNLFGI KQYLIALFPL 
       160        170        180        190        200
AIIVLVFPMA LPAANFSTGQ ALLVALISAA MYGVFLLIQT KTHQSLFVYE 
       210        220        230        240        250
HEDDSDDDDP HHGKPSAHSS LWHAIWLIIH LIAVIAVTKM NASSLETLLD 
       260        270        280        290        300
SMNAPVAFTG FLVALLILSP EGLGALKAVL NNQVQRAMNL FFGSVLATIS 
       310        320        330        340        350
LTVPVVTLIA FMTGNELQFA LGAPEMVVMV ASLVLCHISF STGRTNVLNG 
       360 
AAHLALFAAY LMTIFA
Length:366
Mass (Da):39,168
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:iC16935AC6A6D811E
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
L28709 Genomic DNA Translation: AAA20200.1
U00096 Genomic DNA Translation: AAC74300.1
AP009048 Genomic DNA Translation: BAA36074.1

Protein sequence database of the Protein Information Resource

More...PIRi		A46716

NCBI Reference Sequences

More...RefSeqi		NP_415734.1, NC_000913.3
WP_000063607.1, NZ_SSZK01000010.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...EnsemblBacteriai		AAC74300; AAC74300; b1216
BAA36074; BAA36074; BAA36074

Database of genes from NCBI RefSeq genomes

More...GeneIDi		945790

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		ecj:JW1207
eco:b1216

Pathosystems Resource Integration Center (PATRIC)

More...PATRICi		fig|1411691.4.peg.1066

<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
L28709 Genomic DNA Translation: AAA20200.1
U00096 Genomic DNA Translation: AAC74300.1
AP009048 Genomic DNA Translation: BAA36074.1
PIRiA46716
RefSeqiNP_415734.1, NC_000913.3
WP_000063607.1, NZ_SSZK01000010.1

3D structure databases

Database of comparative protein structure models

More...ModBasei		Search...

SWISS-MODEL Interactive Workspace

More...SWISS-MODEL-Workspacei		Submit a new modelling project...

Protein-protein interaction databases

BioGRIDi4260120, 11 interactors
STRINGi511145.b1216

Protein family/group databases

TCDBi2.A.19.1.1, the ca(2+):cation antiporter (caca) family

Proteomic databases

PaxDbiP31801
PRIDEiP31801

Genome annotation databases

EnsemblBacteriaiAAC74300; AAC74300; b1216
BAA36074; BAA36074; BAA36074
GeneIDi945790
KEGGiecj:JW1207
eco:b1216
PATRICifig|1411691.4.peg.1066

Organism-specific databases

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

More...EchoBASEi		EB1703

Phylogenomic databases

eggNOGiCOG0387, Bacteria
HOGENOMiCLU_050648_0_0_6
InParanoidiP31801
KOiK07300
PhylomeDBiP31801

Enzyme and pathway databases

BioCyciEcoCyc:CHAA-MONOMER
MetaCyc:CHAA-MONOMER

Miscellaneous databases

Protein Ontology

More...PROi		PR:P31801

Family and domain databases

InterProiView protein in InterPro
IPR004713, CaH_exchang
IPR004837, NaCa_Exmemb
PfamiView protein in Pfam
PF01699, Na_Ca_ex, 2 hits
TIGRFAMsiTIGR00846, caca2, 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 nameiCHAA_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: P31801
<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: October 7, 2020
This is version 156 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

Documents

  1. Escherichia coli
    Escherichia coli (strain K12): entries and cross-references to EcoGene
  2. SIMILARITY comments
    Index of protein domains and families
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