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Entry version 101 (16 Oct 2019)
Sequence version 1 (05 Jul 2004)
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Protein

Prostaglandin D2 receptor 2

Gene

Ptgdr2

Organism
Rattus norvegicus (Rat)
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

Receptor for prostaglandin D2 (PGD2). Coupled to the G(i)-protein. Receptor activation may result in pertussis toxin-sensitive decreases in cAMP levels and Ca2+ mobilization. PI3K signaling is also implicated in mediating PTGDR2 effects. PGD2 induced receptor internalization. CRTH2 internalization can be regulated by diverse kinases such as, PKC, PKA, GRK2, GPRK5/GRK5 and GRK6. Receptor activation is responsible, at least in part, in immune regulation and allergic/inflammation responses (By similarity).By similarity

<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 functionG-protein coupled receptor, Receptor, Transducer

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-RNO-391908 Prostanoid ligand receptors
R-RNO-418594 G alpha (i) signalling events

<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:
Prostaglandin D2 receptor 2
Alternative name(s):
G protein-coupled receptor 44
<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:Ptgdr2
Synonyms:Crth2, Gpr44
<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>OrganismiRattus norvegicus (Rat)
<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 identifieri10116 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeRattus
<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
  • UP000002494 <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 1

Organism-specific databases

Rat genome database

More...
RGDi
1311986 Ptgdr2

<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

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 – 34ExtracellularSequence analysisAdd BLAST34
<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>Transmembranei35 – 55Helical; Name=1Sequence analysisAdd BLAST21
Topological domaini56 – 71CytoplasmicSequence analysisAdd BLAST16
Transmembranei72 – 92Helical; Name=2Sequence analysisAdd BLAST21
Topological domaini93 – 104ExtracellularSequence analysisAdd BLAST12
Transmembranei105 – 125Helical; Name=3Sequence analysisAdd BLAST21
Topological domaini126 – 147CytoplasmicSequence analysisAdd BLAST22
Transmembranei148 – 168Helical; Name=4Sequence analysisAdd BLAST21
Topological domaini169 – 209ExtracellularSequence analysisAdd BLAST41
Transmembranei210 – 230Helical; Name=5Sequence analysisAdd BLAST21
Topological domaini231 – 245CytoplasmicSequence analysisAdd BLAST15
Transmembranei246 – 266Helical; Name=6Sequence analysisAdd BLAST21
Topological domaini267 – 284ExtracellularSequence analysisAdd BLAST18
Transmembranei285 – 305Helical; Name=7Sequence analysisAdd BLAST21
Topological domaini306 – 403CytoplasmicSequence analysisAdd BLAST98

Keywords - Cellular componenti

Cell membrane, Membrane

<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

Chemistry databases

ChEMBL database of bioactive drug-like small molecules

More...
ChEMBLi
CHEMBL1075112

DrugCentral

More...
DrugCentrali
Q6XKD3

IUPHAR/BPS Guide to PHARMACOLOGY

More...
GuidetoPHARMACOLOGYi
339

<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_00004159261 – 403Prostaglandin D2 receptor 2Add BLAST403

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section specifies the position and type of each covalently attached glycan group (mono-, di-, or polysaccharide).<p><a href='/help/carbohyd' target='_top'>More...</a></p>Glycosylationi3N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi21N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi24N-linked (GlcNAc...) asparagineSequence analysis1
<p>This subsection of the PTM / Processing":/help/ptm_processing_section section describes the positions of cysteine residues participating in disulfide bonds.<p><a href='/help/disulfid' target='_top'>More...</a></p>Disulfide bondi103 ↔ 198PROSITE-ProRule annotation
<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 residuei330PhosphoserineCombined sources1
Modified residuei349PhosphoserineBy similarity1

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">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

Phosphorylated.By similarity

Keywords - PTMi

Disulfide bond, Glycoprotein, Phosphoprotein

Proteomic databases

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

More...
PaxDbi
Q6XKD3

PRoteomics IDEntifications database

More...
PRIDEi
Q6XKD3

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
Q6XKD3

Comprehensive resource for the study of protein post-translational modifications (PTMs) in human, mouse and rat.

More...
PhosphoSitePlusi
Q6XKD3

<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

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
ENSRNOG00000036631 Expressed in 8 organ(s), highest expression level in testis

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
Q6XKD3 RN

<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

STRING: functional protein association networks

More...
STRINGi
10116.ENSRNOP00000066082

Chemistry databases

BindingDB database of measured binding affinities

More...
BindingDBi
Q6XKD3

<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
Q6XKD3

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

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section describes a short (usually not more than 20 amino acids) conserved sequence motif of biological significance.<p><a href='/help/motif' target='_top'>More...</a></p>Motifi329 – 332Involved in the recycling of CRTH2By similarity4

<p>This subsection of the ‘Family and domains’ section provides general information on the biological role of a domain. The term ‘domain’ is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

The 329-DSEL-332 motif is involved in the recycling of PTGDR2 to the cell surface after agonist-induced internalization. This motif seems to be required for GRK2 and GPRK5/GRK5 to promote agonist-induced internalization (By similarity). Thr-351 is a major site for PKC-induced internalization of the receptor (By similarity).By similarity

<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 G-protein coupled receptor 1 family.PROSITE-ProRule annotation

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG410IV6V Eukaryota
ENOG410YAX7 LUCA

Ensembl GeneTree

More...
GeneTreei
ENSGT00940000162009

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q6XKD3

KEGG Orthology (KO)

More...
KOi
K06715

Identification of Orthologs from Complete Genome Data

More...
OMAi
FRDTIPR

Database of Orthologous Groups

More...
OrthoDBi
1102944at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q6XKD3

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR000276 GPCR_Rhodpsn
IPR017452 GPCR_Rhodpsn_7TM

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00001 7tm_1, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00237 GPCRRHODOPSN

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00237 G_PROTEIN_RECEP_F1_1, 1 hit
PS50262 G_PROTEIN_RECEP_F1_2, 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.

Q6XKD3-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MANITLKPLC PLLEEMVQLP NHSNSSLRYI DHVSVLLHGL ASLLGLVENG
60 70 80 90 100
LILFVVGCRM RQTVVTTWVL HLALSDLLAA ASLPFFTYFL AVGHSWELGT
110 120 130 140 150
TFCKLHSSVF FLNMFASGFL LSAISLDRCL QVVRPVWAQN HRTVAAAHRV
160 170 180 190 200
CLMLWALAVL NTVPYFVFRD TIPRRDGRIM CYYNMLLLNP GSDRDTTCDY
210 220 230 240 250
RQKALAVSKF LLAFMVPLAI IASSHVAVSL QLHHRGRQRT GRFVRLVAAI
260 270 280 290 300
VVAFILCWGP YHIFSLLEAR AHSVTTLRQL ASRGLPFVTS LAFFNSVVNP
310 320 330 340 350
LLYVLTCPDM LHKLRRSLLT VLESVLVEDS DLSTGPGKRC RRRHRRRASS
360 370 380 390 400
TTTPASTLLL ADRFPQLRPA RLIGWMRRGS AELPRRVREQ SQEKQGSLSC

TLD
Length:403
Mass (Da):45,316
Last modified:July 5, 2004 - 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:iA89A0125DCB29885
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
AY228550 mRNA Translation: AAP57088.1
CH473953 Genomic DNA Translation: EDM12854.1

NCBI Reference Sequences

More...
RefSeqi
NP_001012070.1, NM_001012070.1
XP_006231102.1, XM_006231040.3
XP_008758453.1, XM_008760231.2
XP_017444751.1, XM_017589262.1
XP_017444752.1, XM_017589263.1
XP_017444753.1, XM_017589264.1

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSRNOT00000054808; ENSRNOP00000066082; ENSRNOG00000036631

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
309212

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
rno:309212

UCSC genome browser

More...
UCSCi
RGD:1311986 rat

<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
AY228550 mRNA Translation: AAP57088.1
CH473953 Genomic DNA Translation: EDM12854.1
RefSeqiNP_001012070.1, NM_001012070.1
XP_006231102.1, XM_006231040.3
XP_008758453.1, XM_008760231.2
XP_017444751.1, XM_017589262.1
XP_017444752.1, XM_017589263.1
XP_017444753.1, XM_017589264.1

3D structure databases

SMRiQ6XKD3
ModBaseiSearch...

Protein-protein interaction databases

STRINGi10116.ENSRNOP00000066082

Chemistry databases

BindingDBiQ6XKD3
ChEMBLiCHEMBL1075112
DrugCentraliQ6XKD3
GuidetoPHARMACOLOGYi339

Protein family/group databases

Information system for G protein-coupled receptors (GPCRs)

More...
GPCRDBi
Search...

PTM databases

iPTMnetiQ6XKD3
PhosphoSitePlusiQ6XKD3

Proteomic databases

PaxDbiQ6XKD3
PRIDEiQ6XKD3

Genome annotation databases

EnsembliENSRNOT00000054808; ENSRNOP00000066082; ENSRNOG00000036631
GeneIDi309212
KEGGirno:309212
UCSCiRGD:1311986 rat

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
11251
RGDi1311986 Ptgdr2

Phylogenomic databases

eggNOGiENOG410IV6V Eukaryota
ENOG410YAX7 LUCA
GeneTreeiENSGT00940000162009
InParanoidiQ6XKD3
KOiK06715
OMAiFRDTIPR
OrthoDBi1102944at2759
PhylomeDBiQ6XKD3

Enzyme and pathway databases

ReactomeiR-RNO-391908 Prostanoid ligand receptors
R-RNO-418594 G alpha (i) signalling events

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q6XKD3

Gene expression databases

BgeeiENSRNOG00000036631 Expressed in 8 organ(s), highest expression level in testis
GenevisibleiQ6XKD3 RN

Family and domain databases

InterProiView protein in InterPro
IPR000276 GPCR_Rhodpsn
IPR017452 GPCR_Rhodpsn_7TM
PfamiView protein in Pfam
PF00001 7tm_1, 1 hit
PRINTSiPR00237 GPCRRHODOPSN
PROSITEiView protein in PROSITE
PS00237 G_PROTEIN_RECEP_F1_1, 1 hit
PS50262 G_PROTEIN_RECEP_F1_2, 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 nameiPD2R2_RAT
<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: Q6XKD3
<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: March 21, 2012
Last sequence update: July 5, 2004
Last modified: October 16, 2019
This is version 101 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 programChordata 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. 7-transmembrane G-linked receptors
    List of 7-transmembrane G-linked receptor entries
  2. SIMILARITY comments
    Index of protein domains and families
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