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UniProtKB - P59528 (TR123_MOUSE)
Protein
Taste receptor type 2 member 123
Gene
Tas2r123
Organism
Mus musculus (Mouse)
Status
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 similarityMiscellaneous
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
GO - Molecular functioni
- bitter taste receptor activity Source: MGI
- G protein-coupled receptor activity Source: UniProtKB-KW
- taste receptor activity Source: MGI
GO - Biological processi
Keywordsi
Molecular function | G-protein coupled receptor, Receptor, Transducer |
Biological process | Sensory transduction, Taste |
Names & Taxonomyi
Protein namesi | Recommended name: Taste receptor type 2 member 123Short name: T2R123 Alternative name(s): STC9-2 Taste receptor type 2 member 23 Short name: T2R23 Short name: mT2R55 |
Gene namesi | Name:Tas2r123 Synonyms:T2r55, Tas2r23 |
Organismi | Mus musculus (Mouse) |
Taxonomic identifieri | 10090 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Myomorpha › Muroidea › Muridae › Murinae › Mus › Mus |
Proteomesi |
|
Organism-specific databases
MGIi | MGI:2681264, Tas2r123 |
VEuPathDBi | HostDB:ENSMUSG00000057381 |
Subcellular locationi
Other locations
Other locations
- integral component of membrane Source: GO_Central
Topology
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Topological domaini | 1 – 13 | ExtracellularSequence analysisAdd BLAST | 13 | |
Transmembranei | 14 – 34 | Helical; Name=1Sequence analysisAdd BLAST | 21 | |
Topological domaini | 35 – 60 | CytoplasmicSequence analysisAdd BLAST | 26 | |
Transmembranei | 61 – 81 | Helical; Name=2Sequence analysisAdd BLAST | 21 | |
Topological domaini | 82 – 90 | ExtracellularSequence analysis | 9 | |
Transmembranei | 91 – 111 | Helical; Name=3Sequence analysisAdd BLAST | 21 | |
Topological domaini | 112 – 134 | CytoplasmicSequence analysisAdd BLAST | 23 | |
Transmembranei | 135 – 155 | Helical; Name=4Sequence analysisAdd BLAST | 21 | |
Topological domaini | 156 – 205 | ExtracellularSequence analysisAdd BLAST | 50 | |
Transmembranei | 206 – 226 | Helical; Name=5Sequence analysisAdd BLAST | 21 | |
Topological domaini | 227 – 253 | CytoplasmicSequence analysisAdd BLAST | 27 | |
Transmembranei | 254 – 274 | Helical; Name=6Sequence analysisAdd BLAST | 21 | |
Topological domaini | 275 – 281 | ExtracellularSequence analysis | 7 | |
Transmembranei | 282 – 302 | Helical; Name=7Sequence analysisAdd BLAST | 21 | |
Topological domaini | 303 – 333 | CytoplasmicSequence analysisAdd BLAST | 31 |
Keywords - Cellular componenti
MembranePTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000082194 | 1 – 333 | Taste receptor type 2 member 123Add BLAST | 333 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Glycosylationi | 7 | N-linked (GlcNAc...) asparagineSequence analysis | 1 | |
Glycosylationi | 167 | N-linked (GlcNAc...) asparagineSequence analysis | 1 | |
Glycosylationi | 186 | N-linked (GlcNAc...) asparagineSequence analysis | 1 | |
Glycosylationi | 195 | N-linked (GlcNAc...) asparagineSequence analysis | 1 |
Keywords - PTMi
GlycoproteinProteomic databases
PaxDbi | P59528 |
PRIDEi | P59528 |
PTM databases
GlyGeni | P59528, 4 sites |
iPTMneti | P59528 |
Expressioni
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
Bgeei | ENSMUSG00000057381, Expressed in thymus and 7 other tissues |
Family & Domainsi
Sequence similaritiesi
Belongs to the G-protein coupled receptor T2R family.Curated
Keywords - Domaini
Transmembrane, Transmembrane helixPhylogenomic databases
eggNOGi | ENOG502SKRK, Eukaryota |
GeneTreei | ENSGT00960000186648 |
HOGENOMi | CLU_072337_3_0_1 |
InParanoidi | P59528 |
OMAi | NTRIDAW |
OrthoDBi | 1053374at2759 |
PhylomeDBi | P59528 |
TreeFami | TF335891 |
Family and domain databases
InterProi | View protein in InterPro IPR017452, GPCR_Rhodpsn_7TM IPR007960, TAS2R |
Pfami | View protein in Pfam PF05296, TAS2R, 1 hit |
PROSITEi | View protein in PROSITE PS50262, G_PROTEIN_RECEP_F1_2, 1 hit |
i Sequence
Sequence statusi: Complete.
P59528-1 [UniParc]FASTAAdd to basket
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
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 5 | K → E in AAL85202 (PubMed:11854532).Curated | 1 | |
Sequence conflicti | 8 | Y → C in AAL85202 (PubMed:11854532).Curated | 1 | |
Sequence conflicti | 42 | K → G in AAL85202 (PubMed:11854532).Curated | 1 | |
Sequence conflicti | 65 – 66 | LS → WA in AAL85202 (PubMed:11854532).Curated | 2 | |
Sequence conflicti | 77 | C → S in AAL85202 (PubMed:11854532).Curated | 1 | |
Sequence conflicti | 207 | F → V in AAL85202 (PubMed:11854532).Curated | 1 | |
Sequence conflicti | 238 | K → S in AAL85202 (PubMed:11854532).Curated | 1 | |
Sequence conflicti | 242 | D → N in AAL85202 (PubMed:11854532).Curated | 1 | |
Sequence conflicti | 265 | Y → N in AAL85202 (PubMed:11854532).Curated | 1 | |
Sequence conflicti | 292 | G → A in AAL85202 (PubMed:11854532).Curated | 1 |
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 |
CCDSi | CCDS20624.1 |
RefSeqi | NP_996908.1, NM_207025.1 |
Genome annotation databases
Ensembli | ENSMUST00000071696; ENSMUSP00000071615; ENSMUSG00000057381 |
GeneIDi | 353167 |
KEGGi | mmu:353167 |
UCSCi | uc009ejq.1, mouse |
Similar proteinsi
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 |
CCDSi | CCDS20624.1 |
RefSeqi | NP_996908.1, NM_207025.1 |
3D structure databases
AlphaFoldDBi | P59528 |
SMRi | P59528 |
ModBasei | Search... |
Protein family/group databases
GPCRDBi | Search... |
PTM databases
GlyGeni | P59528, 4 sites |
iPTMneti | P59528 |
Proteomic databases
PaxDbi | P59528 |
PRIDEi | P59528 |
Protocols and materials databases
DNASUi | 353167 |
Genome annotation databases
Ensembli | ENSMUST00000071696; ENSMUSP00000071615; ENSMUSG00000057381 |
GeneIDi | 353167 |
KEGGi | mmu:353167 |
UCSCi | uc009ejq.1, mouse |
Organism-specific databases
CTDi | 353167 |
MGIi | MGI:2681264, Tas2r123 |
VEuPathDBi | HostDB:ENSMUSG00000057381 |
Phylogenomic databases
eggNOGi | ENOG502SKRK, Eukaryota |
GeneTreei | ENSGT00960000186648 |
HOGENOMi | CLU_072337_3_0_1 |
InParanoidi | P59528 |
OMAi | NTRIDAW |
OrthoDBi | 1053374at2759 |
PhylomeDBi | P59528 |
TreeFami | TF335891 |
Miscellaneous databases
BioGRID-ORCSi | 353167, 0 hits in 71 CRISPR screens |
PROi | PR:P59528 |
RNActi | P59528, protein |
SOURCEi | Search... |
Gene expression databases
Bgeei | ENSMUSG00000057381, Expressed in thymus and 7 other tissues |
Family and domain databases
InterProi | View protein in InterPro IPR017452, GPCR_Rhodpsn_7TM IPR007960, TAS2R |
Pfami | View protein in Pfam PF05296, TAS2R, 1 hit |
PROSITEi | View protein in PROSITE PS50262, G_PROTEIN_RECEP_F1_2, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | TR123_MOUSE | |
Accessioni | P59528Primary (citable) accession number: P59528 Secondary accession number(s): Q7M714 | |
Entry historyi | Integrated 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. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Chordata Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- 7-transmembrane G-linked receptors
List of 7-transmembrane G-linked receptor entries - MGD cross-references
Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot - SIMILARITY comments
Index of protein domains and families