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Entry version 98 (18 Sep 2019)
Sequence version 2 (11 Sep 2007)
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Protein

Mas-related G-protein coupled receptor member B2

Gene

Mrgprb2

Organism
Mus musculus (Mouse)
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 transcript 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

Mast cell-specific receptor for basic secretagogues, i.e. cationic amphiphilic drugs, as well as endo- or exogenous peptides, consisting of a basic head group and a hydrophobic core. Recognizes and binds small molecules containing a cyclized tetrahydroisoquinoline (THIQ), such as non-steroidal neuromuscular blocking drugs (NMBDs), including tubocurarine and atracurium. In response to these compounds, mediates pseudo-allergic reactions characterized by histamine release, inflammation and airway contraction (PubMed:25517090).1 Publication

Caution

In spite of its official gene name, this protein may be the functional ortholog of human MRGPRX2, in terms of expression pattern and pharmacology.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

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

<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:
Mas-related G-protein coupled receptor member B2
<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:Mrgprb2
Synonyms:Mrgb2
<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>OrganismiMus musculus (Mouse)
<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 identifieri10090 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeMusMus
<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
  • UP000000589 <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 7

Organism-specific databases

Mouse genome database (MGD) from Mouse Genome Informatics (MGI)

More...
MGIi
MGI:2441674 Mrgprb2

<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 – 40ExtracellularSequence analysisAdd BLAST40
<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>Transmembranei41 – 61Helical; Name=1Sequence analysisAdd BLAST21
Topological domaini62 – 89CytoplasmicSequence analysisAdd BLAST28
Transmembranei90 – 110Helical; Name=2Sequence analysisAdd BLAST21
Topological domaini111ExtracellularSequence analysis1
Transmembranei112 – 132Helical; Name=3Sequence analysisAdd BLAST21
Topological domaini133 – 157CytoplasmicSequence analysisAdd BLAST25
Transmembranei158 – 178Helical; Name=4Sequence analysisAdd BLAST21
Topological domaini179 – 191ExtracellularSequence analysisAdd BLAST13
Transmembranei192 – 212Helical; Name=5Sequence analysisAdd BLAST21
Topological domaini213 – 231CytoplasmicSequence analysisAdd BLAST19
Transmembranei232 – 252Helical; Name=6Sequence analysisAdd BLAST21
Topological domaini253 – 268ExtracellularSequence analysisAdd BLAST16
Transmembranei269 – 289Helical; Name=7Sequence analysisAdd BLAST21
Topological domaini290 – 338CytoplasmicSequence analysisAdd BLAST49

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

<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

No visible phenotype in normal conditions. Absence of pseudo-allergic reactions in response to small-molecule therapeutic drugs: secretagogue-induced histamine release, inflammation and airway contraction are abolished.1 Publication

<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_00003048781 – 338Mas-related G-protein coupled receptor member B2Add BLAST338

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>Glycosylationi9N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi18N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi23N-linked (GlcNAc...) asparagineSequence analysis1

Keywords - PTMi

Glycoprotein

Proteomic databases

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

More...
PaxDbi
Q3KNA1

PRoteomics IDEntifications database

More...
PRIDEi
Q3KNA1

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
Q3KNA1

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

More...
PhosphoSitePlusi
Q3KNA1

<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 a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified ‘at protein level’. <br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

Mast cell-specific.1 Publication

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
ENSMUSG00000050425 Expressed in 8 organ(s), highest expression level in zone of skin

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
Q3KNA1 baseline and differential

<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
10090.ENSMUSP00000061878

<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

<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. Mas subfamily.PROSITE-ProRule annotation

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG410J9NM Eukaryota
ENOG4111AUB LUCA

Ensembl GeneTree

More...
GeneTreei
ENSGT00950000182854

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000015412

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q3KNA1

KEGG Orthology (KO)

More...
KOi
K08396

Identification of Orthologs from Complete Genome Data

More...
OMAi
NAIVLWF

Database of Orthologous Groups

More...
OrthoDBi
1123658at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q3KNA1

TreeFam database of animal gene trees

More...
TreeFami
TF336336

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
IPR026234 MRGPCRFAMILY

The PANTHER Classification System

More...
PANTHERi
PTHR11334 PTHR11334, 1 hit

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
PR02108 MRGPCRFAMILY

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.

Q3KNA1-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MSGDFLIKNL STSAWKTNIT VLNGSYYIDT SVCVTRNQAM ILLSIIISLV
60 70 80 90 100
GMGLNAIVLW FLGIRMHTNA FTVYILNLAM ADFLYLCSQF VICLLIAFYI
110 120 130 140 150
FYSIDINIPL VLYVVPIFAY LSGLSILSTI SIERCLSVIW PIWYRCKRPR
160 170 180 190 200
HTSAITCFVL WVMSLLLGLL EGKACGLLFN SFDSYWCETF DVITNIWSVV
210 220 230 240 250
FFGVLCGSSL TLLVRIFCGS QRIPMTRLYV TITLTVLVFL IFGLPFGIYW
260 270 280 290 300
ILYQWISNFY YVEICNFYLE ILFLSCVNSC MNPIIYFLVG SIRHRRFRRK
310 320 330
TLKLLLQRAM QDTPEEEQSG NKSSSEHPEE LETVQSCS
Length:338
Mass (Da):38,832
Last modified:September 11, 2007 - v2
<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:i1B0A091D67C868B9
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Sequence’ section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti28I → F in BAC26422 (PubMed:16141072).Curated1
Sequence conflicti263E → K in AAI07391 (PubMed:15489334).Curated1
Sequence conflicti263E → K in AAI07392 (PubMed:15489334).Curated1

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
AY042200 Genomic DNA Translation: AAK91796.1
AK029369 mRNA Translation: BAC26422.1
BC107390 mRNA Translation: AAI07391.1
BC107391 mRNA Translation: AAI07392.1

The Consensus CDS (CCDS) project

More...
CCDSi
CCDS21303.1

NCBI Reference Sequences

More...
RefSeqi
NP_780740.2, NM_175531.4

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSMUST00000052730; ENSMUSP00000061878; ENSMUSG00000050425

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
243979

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
mmu:243979

UCSC genome browser

More...
UCSCi
uc009hat.2 mouse

<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
AY042200 Genomic DNA Translation: AAK91796.1
AK029369 mRNA Translation: BAC26422.1
BC107390 mRNA Translation: AAI07391.1
BC107391 mRNA Translation: AAI07392.1
CCDSiCCDS21303.1
RefSeqiNP_780740.2, NM_175531.4

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

STRINGi10090.ENSMUSP00000061878

Protein family/group databases

Information system for G protein-coupled receptors (GPCRs)

More...
GPCRDBi
Search...

PTM databases

iPTMnetiQ3KNA1
PhosphoSitePlusiQ3KNA1

Proteomic databases

PaxDbiQ3KNA1
PRIDEiQ3KNA1

Genome annotation databases

EnsembliENSMUST00000052730; ENSMUSP00000061878; ENSMUSG00000050425
GeneIDi243979
KEGGimmu:243979
UCSCiuc009hat.2 mouse

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
243979
MGIiMGI:2441674 Mrgprb2

Phylogenomic databases

eggNOGiENOG410J9NM Eukaryota
ENOG4111AUB LUCA
GeneTreeiENSGT00950000182854
HOGENOMiHOG000015412
InParanoidiQ3KNA1
KOiK08396
OMAiNAIVLWF
OrthoDBi1123658at2759
PhylomeDBiQ3KNA1
TreeFamiTF336336

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q3KNA1

The Stanford Online Universal Resource for Clones and ESTs

More...
SOURCEi
Search...

Gene expression databases

BgeeiENSMUSG00000050425 Expressed in 8 organ(s), highest expression level in zone of skin
ExpressionAtlasiQ3KNA1 baseline and differential

Family and domain databases

InterProiView protein in InterPro
IPR000276 GPCR_Rhodpsn
IPR017452 GPCR_Rhodpsn_7TM
IPR026234 MRGPCRFAMILY
PANTHERiPTHR11334 PTHR11334, 1 hit
PfamiView protein in Pfam
PF00001 7tm_1, 1 hit
PRINTSiPR00237 GPCRRHODOPSN
PR02108 MRGPCRFAMILY
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 nameiMRGB2_MOUSE
<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: Q3KNA1
Secondary accession number(s): Q8CDY4, Q91ZC2
<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: September 11, 2007
Last sequence update: September 11, 2007
Last modified: September 18, 2019
This is version 98 of the entry and version 2 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
  3. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
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