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UniProtKB - P0C0L7 (PROP_ECOLI)

Entry version 127 (02 Jun 2021)
Sequence version 1 (08 Nov 2005)
Previous versions | rss
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Protein

Proline/betaine transporter

Gene

proP

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

Proton symporter that senses osmotic shifts and responds by importing osmolytes such as proline, glycine betaine, stachydrine, pipecolic acid, ectoine and taurine. It is both an osmosensor and an osmoregulator which is available to participate early in the bacterial osmoregulatory response.

3 Publications

<p>This subsection of the 'Function' section describes biophysical and chemical properties, such as maximal absorption, kinetic parameters, pH dependence, redox potentials and temperature dependence.<p><a href='/help/biophysicochemical_properties' target='_top'>More...</a></p>Kineticsi

  1. KM=175 µM for proline1 Publication
  1. Vmax=83.6 nmol/min/mg enzyme with proline as substrate1 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 processSymport, Transport

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

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

SABIO-RK: Biochemical Reaction Kinetics Database

More...SABIO-RKi		P0C0L7

Protein family/group databases

Transport Classification Database

More...TCDBi		2.A.1.6.4, the major facilitator superfamily (mfs)

<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:
Proline/betaine transporter
Alternative name(s):
Proline porter II
Short name:
PPII
<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:proP
Ordered Locus Names:b4111, JW4072
<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 – 37CytoplasmicSequence analysisAdd BLAST37
<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>Transmembranei38 – 58Helical; Name=1Sequence analysisAdd BLAST21
Topological domaini59 – 65PeriplasmicSequence analysis7
Transmembranei66 – 86Helical; Name=2Sequence analysisAdd BLAST21
Topological domaini87 – 97CytoplasmicSequence analysisAdd BLAST11
Transmembranei98 – 118Helical; Name=3Sequence analysisAdd BLAST21
Topological domaini119 – 121PeriplasmicSequence analysis3
Transmembranei122 – 142Helical; Name=4Sequence analysisAdd BLAST21
Topological domaini143 – 169CytoplasmicSequence analysisAdd BLAST27
Transmembranei170 – 190Helical; Name=5Sequence analysisAdd BLAST21
Topological domaini191 – 194PeriplasmicSequence analysis4
Transmembranei195 – 215Helical; Name=6Sequence analysisAdd BLAST21
Topological domaini216 – 260CytoplasmicSequence analysisAdd BLAST45
Transmembranei261 – 281Helical; Name=7Sequence analysisAdd BLAST21
Topological domaini282 – 297PeriplasmicSequence analysisAdd BLAST16
Transmembranei298 – 318Helical; Name=8Sequence analysisAdd BLAST21
Topological domaini319 – 325CytoplasmicSequence analysis7
Transmembranei326 – 346Helical; Name=9Sequence analysisAdd BLAST21
Topological domaini347 – 350PeriplasmicSequence analysis4
Transmembranei351 – 371Helical; Name=10Sequence analysisAdd BLAST21
Topological domaini372 – 390CytoplasmicSequence analysisAdd BLAST19
Transmembranei391 – 411Helical; Name=11Sequence analysisAdd BLAST21
Topological domaini412 – 416PeriplasmicSequence analysis5
Transmembranei417 – 437Helical; Name=12Sequence analysisAdd BLAST21
Topological domaini438 – 500Cytoplasmic1 PublicationAdd BLAST63

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_00000503241 – 500Proline/betaine transporterAdd BLAST500

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...jPOSTi		P0C0L7

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

More...PaxDbi		P0C0L7

PRoteomics IDEntifications database

More...PRIDEi		P0C0L7

<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

Induced by an increase in the osmolarity of the growth medium.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		4263085, 22 interactors

STRING: functional protein association networks

More...STRINGi		511145.b4111

<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

1500
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

Biological Magnetic Resonance Data Bank

More...BMRBi		P0C0L7

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

More...SMRi		P0C0L7

Database of comparative protein structure models

More...ModBasei		Search...

Protein Data Bank in Europe - Knowledge Base

More...PDBe-KBi		Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...EvolutionaryTracei		P0C0L7

<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

Coiled coil

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and domains' section denotes the positions of regions of coiled coil within the protein.<p><a href='/help/coiled' target='_top'>More...</a></p>Coiled coili453 – 498Sequence analysisAdd BLAST46

<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 major facilitator superfamily. Metabolite:H+ Symporter (MHS) family (TC 2.A.1.6) family. [View classification]Curated

Keywords - Domaini

Coiled coil, Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		COG0477, Bacteria

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_001265_39_0_6

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		P0C0L7

Database for complete collections of gene phylogenies

More...PhylomeDBi		P0C0L7

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR020846, MFS_dom
IPR005828, MFS_sugar_transport-like
IPR036259, MFS_trans_sf
IPR004736, MHS_symport
IPR015041, Osmo_CC
IPR036292, ProP_C
IPR005829, Sugar_transporter_CS

Pfam protein domain database

More...Pfami		View protein in Pfam
PF08946, Osmo_CC, 1 hit
PF00083, Sugar_tr, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF103473, SSF103473, 1 hit
SSF103661, SSF103661, 1 hit

TIGRFAMs; a protein family database

More...TIGRFAMsi		TIGR00883, 2A0106, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS50850, MFS, 1 hit
PS00216, SUGAR_TRANSPORT_1, 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.

P0C0L7-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MLKRKKVKPI TLRDVTIIDD GKLRKAITAA SLGNAMEWFD FGVYGFVAYA 
        60         70         80         90        100
LGKVFFPGAD PSVQMVAALA TFSVPFLIRP LGGLFFGMLG DKYGRQKILA 
       110        120        130        140        150
ITIVIMSIST FCIGLIPSYD TIGIWAPILL LICKMAQGFS VGGEYTGASI 
       160        170        180        190        200
FVAEYSPDRK RGFMGSWLDF GSIAGFVLGA GVVVLISTIV GEANFLDWGW 
       210        220        230        240        250
RIPFFIALPL GIIGLYLRHA LEETPAFQQH VDKLEQGDRE GLQDGPKVSF 
       260        270        280        290        300
KEIATKYWRS LLTCIGLVIA TNVTYYMLLT YMPSYLSHNL HYSEDHGVLI 
       310        320        330        340        350
IIAIMIGMLF VQPVMGLLSD RFGRRPFVLL GSVALFVLAI PAFILINSNV 
       360        370        380        390        400
IGLIFAGLLM LAVILNCFTG VMASTLPAMF PTHIRYSALA AAFNISVLVA 
       410        420        430        440        450
GLTPTLAAWL VESSQNLMMP AYYLMVVAVV GLITGVTMKE TANRPLKGAT 
       460        470        480        490        500
PAASDIQEAK EILVEHYDNI EQKIDDIDHE IADLQAKRTR LVQQHPRIDE
Length:500
Mass (Da):54,846
Last modified:November 8, 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:i60EDDBF61190DDFC
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
M83089 Genomic DNA Translation: AAB00919.1
U14003 Genomic DNA Translation: AAA97010.1
U00096 Genomic DNA Translation: AAC77072.1
AP009048 Genomic DNA Translation: BAE78113.1

Protein sequence database of the Protein Information Resource

More...PIRi		S32331

NCBI Reference Sequences

More...RefSeqi		NP_418535.1, NC_000913.3
WP_001298520.1, NZ_SSZK01000018.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...EnsemblBacteriai		AAC77072; AAC77072; b4111
BAE78113; BAE78113; BAE78113

Database of genes from NCBI RefSeq genomes

More...GeneIDi		61734764
948626

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		ecj:JW4072
eco:b4111

Pathosystems Resource Integration Center (PATRIC)

More...PATRICi		fig|1411691.4.peg.2589

<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
M83089 Genomic DNA Translation: AAB00919.1
U14003 Genomic DNA Translation: AAA97010.1
U00096 Genomic DNA Translation: AAC77072.1
AP009048 Genomic DNA Translation: BAE78113.1
PIRiS32331
RefSeqiNP_418535.1, NC_000913.3
WP_001298520.1, NZ_SSZK01000018.1

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
1R48NMR-A/B468-497[»]
1Y8Smodel-A1-500[»]
BMRBiP0C0L7
SMRiP0C0L7
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

BioGRIDi4263085, 22 interactors
STRINGi511145.b4111

Protein family/group databases

TCDBi2.A.1.6.4, the major facilitator superfamily (mfs)

Proteomic databases

jPOSTiP0C0L7
PaxDbiP0C0L7
PRIDEiP0C0L7

Genome annotation databases

EnsemblBacteriaiAAC77072; AAC77072; b4111
BAE78113; BAE78113; BAE78113
GeneIDi61734764
948626
KEGGiecj:JW4072
eco:b4111
PATRICifig|1411691.4.peg.2589

Organism-specific databases

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

More...EchoBASEi		EB1569

Phylogenomic databases

eggNOGiCOG0477, Bacteria
HOGENOMiCLU_001265_39_0_6
InParanoidiP0C0L7
PhylomeDBiP0C0L7

Enzyme and pathway databases

BioCyciEcoCyc:PROP-MONOMER
MetaCyc:PROP-MONOMER
SABIO-RKiP0C0L7

Miscellaneous databases

EvolutionaryTraceiP0C0L7

Protein Ontology

More...PROi		PR:P0C0L7

Family and domain databases

InterProiView protein in InterPro
IPR020846, MFS_dom
IPR005828, MFS_sugar_transport-like
IPR036259, MFS_trans_sf
IPR004736, MHS_symport
IPR015041, Osmo_CC
IPR036292, ProP_C
IPR005829, Sugar_transporter_CS
PfamiView protein in Pfam
PF08946, Osmo_CC, 1 hit
PF00083, Sugar_tr, 1 hit
SUPFAMiSSF103473, SSF103473, 1 hit
SSF103661, SSF103661, 1 hit
TIGRFAMsiTIGR00883, 2A0106, 1 hit
PROSITEiView protein in PROSITE
PS50850, MFS, 1 hit
PS00216, SUGAR_TRANSPORT_1, 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 nameiPROP_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: P0C0L7
Secondary accession number(s): P30848, Q2M6J3
<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: November 8, 2005
Last sequence update: November 8, 2005
Last modified: June 2, 2021
This is version 127 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

3D-structure, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families
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