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Entry version 138 (05 Jun 2019)
Sequence version 1 (01 Jul 1997)
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Protein

Inactive protein-tyrosine phosphatase egg-4

Gene

egg-4

Organism
Caenorhabditis elegans
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

Inactive phosphatase which acts redundantly with egg-5 in the oocyte-to-zygote transition (PubMed:19879842, PubMed:19879147). Required for the polarization of cortical actin cytoskeleton rearrangement in the oocyte before and after fertilization (PubMed:19879147). Together with egg-5, required for the cortical localization of kinase mbk-2 and for the inhibition of mbk-2 kinase activity in maturing oocyte until the end of meiosis I (PubMed:19879842). Also required for kinase mbk-2, pseudophosphatase egg-3 and chitin synthase chs-1 localization to cytoplasmic foci after fertilization (PubMed:19879147).2 Publications

Caution

The active site Cys-600 is replaced by a Asp residue suggesting that egg-4 may lack catalytic activity. Despite the lack of catalytic activity, egg-4 may retain the capacity to bind to phosphorylated substrates. Does not dephosphorylate mbk-2 (PubMed:19879842).Curated1 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

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 functionDevelopmental protein

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-CEL-6798695 Neutrophil degranulation

<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:
Inactive protein-tyrosine phosphatase egg-4Curated
Alternative name(s):
Egg sterile protein 4Imported
Protein-tyrosine phosphatase-like protein egg-41 Publication
<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:egg-4Imported
ORF Names:T21E3.1Imported
<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>OrganismiCaenorhabditis elegansImported
<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 identifieri6239 [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 lineageiEukaryotaMetazoaEcdysozoaNematodaChromadoreaRhabditidaRhabditinaRhabditomorphaRhabditoideaRhabditidaePeloderinaeCaenorhabditis
<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
  • UP000001940 <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 I

Organism-specific databases

WormBase

More...
WormBasei
T21E3.1 ; CE13874 ; WBGene00020652 ; egg-4

<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

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

Keywords - Cellular componenti

Cytoplasm

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

<p>This subsection of the ‘Pathology and Biotech’ section describes the in vivo effects caused by ablation of the gene (or one or more transcripts) coding for the protein described in the entry. This includes gene knockout and knockdown, provided experiments have been performed in the context of a whole organism or a specific tissue, and not at the single-cell level.<p><a href='/help/disruption_phenotype' target='_top'>More...</a></p>Disruption phenotypei

Severe reduction in the number of hatched larvae (PubMed:19879147). Simultaneous RNAi-mediated knockdown of egg-5 results in no viable progeny and causes endomitosis in the uterus, generation of polyspermic embryos and defects in meiosis completion, polar body formation and eggshell chitin layer formation (PubMed:19879147). In addition, posterior formation of F-actin cap at the cortex oocyte and its polarized dispersal after fertilization are impaired (PubMed:19879147). Prevents mbk-2 localization to the unfertilized oocyte cortex without affecting egg-3 cortical localization (PubMed:19879842, PubMed:19879147). Prevents mbk-2, egg-3 and chs-1 re-localization to cytoplasmic foci at meiosis anaphase I (PubMed:19879147). Simultaneous RNAi-mediated knockdown of egg-5 and mel-26 causes premature phosphorylation of mei-1, a mbk-1 substrate, during oocyte maturation (PubMed:19879842).2 Publications

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology_and_biotech_section">'Pathology and Biotech'</a> section describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.<p><a href='/help/mutagen' target='_top'>More...</a></p>Mutagenesisi599H → A: Strongly reduced interaction with mbk-2; when associated with A-603 and A-606. 1 Publication1
Mutagenesisi603G → A: Strongly reduced interaction with mbk-2; when associated with A-599 and A-606. 1 Publication1
Mutagenesisi606R → A: Strongly reduced interaction with mbk-2; when associated with A-599 and A-603. 1 Publication1

<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_00004432511 – 753Inactive protein-tyrosine phosphatase egg-4Add BLAST753

Proteomic databases

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

More...
PaxDbi
O01767

PeptideAtlas

More...
PeptideAtlasi
O01767

<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 provides information on the expression of the gene product at various stages of a cell, tissue or organism development. By default, the information is derived from experiments at the mRNA level, unless specified ‘at the protein level’.<p><a href='/help/developmental_stage' target='_top'>More...</a></p>Developmental stagei

Expressed in developing oocytes (at protein level).1 Publication

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
WBGene00020652 Expressed in 3 organ(s), highest expression level in adult organism

<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

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Part of a complex, consisting of pseudophosphatases egg-3, egg-4, egg-5 and kinase mbk-2; this complex is required for the oocyte-to-zygote transition (PubMed:19879842).

Interacts (via tyrosine-protein phosphatase domain) with kinase mbk-2 (via 'Tyr-619' and 'Tyr-621'); mbk-2 tyrosine phosphorylation enhances the interaction (PubMed:19879842). The interaction inhibits mbk-2 kinase activity and is required for mbk-2 oocyte cortex localization (PubMed:19879842, PubMed:19879147).

Interacts with egg-3 (PubMed:19879147).

2 Publications

GO - Molecular functioni

Protein-protein interaction databases

ComplexPortal: manually curated resource of macromolecular complexes

More...
ComplexPortali
CPX-3381 Egg-3/4/5 MBK-2 complex

Protein interaction database and analysis system

More...
IntActi
O01767, 2 interactors

STRING: functional protein association networks

More...
STRINGi
6239.T21E3.1

<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
O01767

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>Domaini408 – 661Tyrosine-protein phosphatasePROSITE-ProRule annotationAdd BLAST254

<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

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG0789 Eukaryota
COG5599 LUCA

Ensembl GeneTree

More...
GeneTreei
ENSGT00940000174061

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000113912

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
O01767

Identification of Orthologs from Complete Genome Data

More...
OMAi
FNNVRMK

Database of Orthologous Groups

More...
OrthoDBi
411281at2759

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.90.190.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR029021 Prot-tyrosine_phosphatase-like
IPR000242 PTPase_domain
IPR003595 Tyr_Pase_cat
IPR000387 TYR_PHOSPHATASE_dom

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00102 Y_phosphatase, 1 hit

Protein Motif fingerprint database; a protein domain database

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PRINTSi
PR00700 PRTYPHPHTASE

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00194 PTPc, 1 hit
SM00404 PTPc_motif, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF52799 SSF52799, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS50056 TYR_PHOSPHATASE_2, 1 hit
PS50055 TYR_PHOSPHATASE_PTP, 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.

O01767-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MALNSEVMFR EQINAMRSQA GRKRATSLQS FCSGNTDDSS ADSTDNMDMM
60 70 80 90 100
VDYPQQKGVS CMRARFNSES TLSKSFRKKV KKLAQKDRRS KERLNGNSEE
110 120 130 140 150
DAIEVPRGAP STYAAPSKLR KSKALDCLVS EKPKDEGRRE DSGHGADIEM
160 170 180 190 200
AKGHFNNVRM KVFAARTAMQ VEPALVMKTR KALEMKNAVL ENHQSPGAFS
210 220 230 240 250
LHAAYKIAAS AESRVGSITP CNKKVTKEAM ANLIRSSYDD TEITQELLFS
260 270 280 290 300
SKFDTKWKGR YTDIYMRRDE NGKKPKRPVN GQGWVMPLKS ICEKFGINST
310 320 330 340 350
FFTNHRIDLK SARDQVLLMR LLSHDQTSTW ISDIHPEAVK NETMAEYLLR
360 370 380 390 400
ELDASTMQKR VQAFKANVLA DRDRVRVAGQ FYNNIRIGKR MFGAARKAKY
410 420 430 440 450
LSTIIGGMER RFEILENSVN HIPFTHSASD NNQEKCRNPR VHCKDSTRIA
460 470 480 490 500
LQFPRGQYLG DFIHANRISG KPLFNEFIMT QAPMKNTVDD FWRMVWQEEV
510 520 530 540 550
PYIVMLTSRK EPERCEYYWP KSPSDPAVTV PGGLRIENFG VYQAPDPLFR
560 570 580 590 600
VTHLRLIGPD REERHVEHWQ GDVNNSSNMY SPLNILRLLR NASKPVVIHD
610 620 630 640 650
HLGVSRAACL VAAEIAICSL LRGPTYKYPV QRAVQFLRQR RPFSIETPMQ
660 670 680 690 700
YIFVHRLVAF FFRDVIGSAK ELDVDYERWL QERSERMFLD DLAAPIPGYR
710 720 730 740 750
LLSPRADPDI VRMVGRPERP NYRREAPDCV GEMPNKVATV DGILSPAKSV

FEF
Length:753
Mass (Da):86,059
Last modified:July 1, 1997 - 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:i68EAA7234FABC448
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
BX284601 Genomic DNA Translation: CCD71367.1

Protein sequence database of the Protein Information Resource

More...
PIRi
T29763

NCBI Reference Sequences

More...
RefSeqi
NP_491269.1, NM_058868.4

Genome annotation databases

Ensembl metazoan genome annotation project

More...
EnsemblMetazoai
T21E3.1; T21E3.1; WBGene00020652

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
171980

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
cel:CELE_T21E3.1

UCSC genome browser

More...
UCSCi
T21E3.1 c. elegans

<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
BX284601 Genomic DNA Translation: CCD71367.1
PIRiT29763
RefSeqiNP_491269.1, NM_058868.4

3D structure databases

SMRiO01767
ModBaseiSearch...

Protein-protein interaction databases

ComplexPortaliCPX-3381 Egg-3/4/5 MBK-2 complex
IntActiO01767, 2 interactors
STRINGi6239.T21E3.1

Proteomic databases

PaxDbiO01767
PeptideAtlasiO01767

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblMetazoaiT21E3.1; T21E3.1; WBGene00020652
GeneIDi171980
KEGGicel:CELE_T21E3.1
UCSCiT21E3.1 c. elegans

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
171980
WormBaseiT21E3.1 ; CE13874 ; WBGene00020652 ; egg-4

Phylogenomic databases

eggNOGiKOG0789 Eukaryota
COG5599 LUCA
GeneTreeiENSGT00940000174061
HOGENOMiHOG000113912
InParanoidiO01767
OMAiFNNVRMK
OrthoDBi411281at2759

Enzyme and pathway databases

ReactomeiR-CEL-6798695 Neutrophil degranulation

Miscellaneous databases

Protein Ontology

More...
PROi
PR:O01767

Gene expression databases

BgeeiWBGene00020652 Expressed in 3 organ(s), highest expression level in adult organism

Family and domain databases

Gene3Di3.90.190.10, 1 hit
InterProiView protein in InterPro
IPR029021 Prot-tyrosine_phosphatase-like
IPR000242 PTPase_domain
IPR003595 Tyr_Pase_cat
IPR000387 TYR_PHOSPHATASE_dom
PfamiView protein in Pfam
PF00102 Y_phosphatase, 1 hit
PRINTSiPR00700 PRTYPHPHTASE
SMARTiView protein in SMART
SM00194 PTPc, 1 hit
SM00404 PTPc_motif, 1 hit
SUPFAMiSSF52799 SSF52799, 1 hit
PROSITEiView protein in PROSITE
PS50056 TYR_PHOSPHATASE_2, 1 hit
PS50055 TYR_PHOSPHATASE_PTP, 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 nameiEGG4_CAEEL
<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: O01767
<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 28, 2018
Last sequence update: July 1, 1997
Last modified: June 5, 2019
This is version 138 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 programCaenorhabditis annotation project

<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. SIMILARITY comments
    Index of protein domains and families
  2. Caenorhabditis elegans
    Caenorhabditis elegans: entries, gene names and cross-references to WormBase
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