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Entry version 124 (25 May 2022)
Sequence version 2 (05 Sep 2006)
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Protein

Taste receptor type 2 member 123

Gene

Tas2r123

Organism
Mus musculus (Mouse)
Status
Reviewed-Annotation score:

Annotation score:3 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

Gustducin-coupled receptor implicated in the perception of bitter compounds in the oral cavity and the gastrointestinal tract. Signals through PLCB2 and the calcium-regulated cation channel TRPM5 (By similarity).

By similarity

Miscellaneous

Several bitter taste receptors are expressed in a single taste receptor cell.

Caution

This protein was previously referred to as T2R2 but is now considered to be an ortholog of rat TAS2R23.Curated

<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
Biological processSensory transduction, Taste

<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:
Taste receptor type 2 member 123
Short name:
T2R123
Alternative name(s):
STC9-2
Taste receptor type 2 member 23
Short name:
T2R23
Short name:
mT2R55
<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:Tas2r123
Synonyms:T2r55, Tas2r23
<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>OrganismiMus musculus (Mouse)
<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 identifieri10090 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeMusMus
<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
  • UP000000589 <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 6

Organism-specific databases

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

More...
MGIi
MGI:2681264, Tas2r123

Eukaryotic Pathogen, Vector and Host Database Resources

More...
VEuPathDBi
HostDB:ENSMUSG00000057381

<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 – 13ExtracellularSequence analysisAdd BLAST13
<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>Transmembranei14 – 34Helical; Name=1Sequence analysisAdd BLAST21
Topological domaini35 – 60CytoplasmicSequence analysisAdd BLAST26
Transmembranei61 – 81Helical; Name=2Sequence analysisAdd BLAST21
Topological domaini82 – 90ExtracellularSequence analysis9
Transmembranei91 – 111Helical; Name=3Sequence analysisAdd BLAST21
Topological domaini112 – 134CytoplasmicSequence analysisAdd BLAST23
Transmembranei135 – 155Helical; Name=4Sequence analysisAdd BLAST21
Topological domaini156 – 205ExtracellularSequence analysisAdd BLAST50
Transmembranei206 – 226Helical; Name=5Sequence analysisAdd BLAST21
Topological domaini227 – 253CytoplasmicSequence analysisAdd BLAST27
Transmembranei254 – 274Helical; Name=6Sequence analysisAdd BLAST21
Topological domaini275 – 281ExtracellularSequence analysis7
Transmembranei282 – 302Helical; Name=7Sequence analysisAdd BLAST21
Topological domaini303 – 333CytoplasmicSequence analysisAdd BLAST31

Keywords - Cellular componenti

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_00000821941 – 333Taste receptor type 2 member 123Add BLAST333

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">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>Glycosylationi7N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi167N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi186N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi195N-linked (GlcNAc...) asparagineSequence analysis1

Keywords - PTMi

Glycoprotein

Proteomic databases

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

More...
PaxDbi
P59528

PRoteomics IDEntifications database

More...
PRIDEi
P59528

PTM databases

GlyGen: Computational and Informatics Resources for Glycoscience

More...
GlyGeni
P59528, 4 sites

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
P59528

<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

Expressed in subsets of taste receptor cells of the tongue and palate epithelium and exclusively in gustducin-positive cells. Expressed in the duodenum, antrum and fundus (part of the stomach).1 Publication

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
ENSMUSG00000057381, Expressed in thymus and 7 other tissues

<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

Miscellaneous databases

RNAct, Protein-RNA interaction predictions for model organisms.

More...
RNActi
P59528, protein

<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

AlphaFold Protein Structure Database

More...
AlphaFoldDBi
P59528

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

More...
SMRi
P59528

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

<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

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG502SKRK, Eukaryota

Ensembl GeneTree

More...
GeneTreei
ENSGT00960000186648

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_072337_3_0_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P59528

Identification of Orthologs from Complete Genome Data

More...
OMAi
NTRIDAW

Database of Orthologous Groups

More...
OrthoDBi
1053374at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P59528

TreeFam database of animal gene trees

More...
TreeFami
TF335891

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR017452, GPCR_Rhodpsn_7TM
IPR007960, TAS2R

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF05296, TAS2R, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
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%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.

P59528-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MFSQKINYSH LFTFSITLYV EIVTGILGHG FIALVNIMDW VKRRRISSVD
60 70 80 90 100
QILTALALTR FIYVLSMLIC ILLFMLCPHL PRRSEMLSAM GIFWVVNSHF
110 120 130 140 150
SIWLTTCLGV FYFLKIANFS NSFFLYLKWR VKKVILIIIL ASLIFLTLHI
160 170 180 190 200
LSLGIYDQFS IAAYVGNMSY SLTDLTQFSS TFLFSNSSNV FLITNSSHVF
210 220 230 240 250
LPINSLFMLI PFTVSLVAFL MLIFSLWKHH KKMQVNAKQP RDVSTMAHIK
260 270 280 290 300
ALQTVFSFLL LYAIYLLFLI IGILNLGLME KIVILIFDHI SGAVFPISHS
310 320 330
FVLILGNSKL RQASLSVLPC LRCQSKDMDT MGL
Length:333
Mass (Da):38,032
Last modified:September 5, 2006 - 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:iC6184E9D5F153198
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 conflicti5K → E in AAL85202 (PubMed:11854532).Curated1
Sequence conflicti8Y → C in AAL85202 (PubMed:11854532).Curated1
Sequence conflicti42K → G in AAL85202 (PubMed:11854532).Curated1
Sequence conflicti65 – 66LS → WA in AAL85202 (PubMed:11854532).Curated2
Sequence conflicti77C → S in AAL85202 (PubMed:11854532).Curated1
Sequence conflicti207F → V in AAL85202 (PubMed:11854532).Curated1
Sequence conflicti238K → S in AAL85202 (PubMed:11854532).Curated1
Sequence conflicti242D → N in AAL85202 (PubMed:11854532).Curated1
Sequence conflicti265Y → N in AAL85202 (PubMed:11854532).Curated1
Sequence conflicti292G → A in AAL85202 (PubMed:11854532).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
AF412305 Genomic DNA Translation: AAL85202.1
AX097844 Genomic DNA No translation available.
AC129318 Genomic DNA No translation available.
BK001083 Genomic DNA Translation: DAA01222.1

The Consensus CDS (CCDS) project

More...
CCDSi
CCDS20624.1

NCBI Reference Sequences

More...
RefSeqi
NP_996908.1, NM_207025.1

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSMUST00000071696; ENSMUSP00000071615; ENSMUSG00000057381

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
353167

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
mmu:353167

UCSC genome browser

More...
UCSCi
uc009ejq.1, 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
AF412305 Genomic DNA Translation: AAL85202.1
AX097844 Genomic DNA No translation available.
AC129318 Genomic DNA No translation available.
BK001083 Genomic DNA Translation: DAA01222.1
CCDSiCCDS20624.1
RefSeqiNP_996908.1, NM_207025.1

3D structure databases

AlphaFoldDBiP59528
SMRiP59528
ModBaseiSearch...

Protein family/group databases

Information system for G protein-coupled receptors (GPCRs)

More...
GPCRDBi
Search...

PTM databases

GlyGeniP59528, 4 sites
iPTMnetiP59528

Proteomic databases

PaxDbiP59528
PRIDEiP59528

Protocols and materials databases

The DNASU plasmid repository

More...
DNASUi
353167

Genome annotation databases

EnsembliENSMUST00000071696; ENSMUSP00000071615; ENSMUSG00000057381
GeneIDi353167
KEGGimmu:353167
UCSCiuc009ejq.1, mouse

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
353167
MGIiMGI:2681264, Tas2r123
VEuPathDBiHostDB:ENSMUSG00000057381

Phylogenomic databases

eggNOGiENOG502SKRK, Eukaryota
GeneTreeiENSGT00960000186648
HOGENOMiCLU_072337_3_0_1
InParanoidiP59528
OMAiNTRIDAW
OrthoDBi1053374at2759
PhylomeDBiP59528
TreeFamiTF335891

Miscellaneous databases

BioGRID ORCS database of CRISPR phenotype screens

More...
BioGRID-ORCSi
353167, 0 hits in 71 CRISPR screens

Protein Ontology

More...
PROi
PR:P59528
RNActiP59528, protein

The Stanford Online Universal Resource for Clones and ESTs

More...
SOURCEi
Search...

Gene expression databases

BgeeiENSMUSG00000057381, Expressed in thymus and 7 other tissues

Family and domain databases

InterProiView protein in InterPro
IPR017452, GPCR_Rhodpsn_7TM
IPR007960, TAS2R
PfamiView protein in Pfam
PF05296, TAS2R, 1 hit
PROSITEiView protein in PROSITE
PS50262, G_PROTEIN_RECEP_F1_2, 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 nameiTR123_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: P59528
Secondary accession number(s): Q7M714
<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: April 11, 2003
Last sequence update: September 5, 2006
Last modified: May 25, 2022
This is version 124 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

Reference proteome

Documents

  1. 7-transmembrane G-linked receptors
    List of 7-transmembrane G-linked receptor entries
  2. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
  3. SIMILARITY comments
    Index of protein domains and families
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