T2R13_RAT
ID T2R13_RAT Reviewed; 305 AA.
AC Q9JKT7;
DT 11-APR-2003, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2000, sequence version 1.
DT 03-AUG-2022, entry version 120.
DE RecName: Full=Taste receptor type 2 member 13;
DE Short=T2R13;
DE AltName: Full=Taste receptor type 2 member 7;
DE Short=T2R7;
GN Name=Tas2r13; Synonyms=Tas2r7;
OS Rattus norvegicus (Rat).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae;
OC Murinae; Rattus.
OX NCBI_TaxID=10116;
RN [1]
RP NUCLEOTIDE SEQUENCE [MRNA], AND TOPOLOGY.
RX PubMed=10761934; DOI=10.1016/s0092-8674(00)80705-9;
RA Adler E., Hoon M.A., Mueller K.L., Chandrashekar J., Ryba N.J.P.,
RA Zuker C.S.;
RT "A novel family of mammalian taste receptors.";
RL Cell 100:693-702(2000).
RN [2]
RP CHARACTERIZATION.
RX PubMed=10761935; DOI=10.1016/s0092-8674(00)80706-0;
RA Chandrashekar J., Mueller K.L., Hoon M.A., Adler E., Feng L., Guo W.,
RA Zuker C.S., Ryba N.J.P.;
RT "T2Rs function as bitter taste receptors.";
RL Cell 100:703-711(2000).
RN [3]
RP TISSUE SPECIFICITY.
RX PubMed=11854532; DOI=10.1073/pnas.042617699;
RA Wu S.V., Rozengurt N., Yang M., Young S.H., Sinnett-Smith J., Rozengurt E.;
RT "Expression of bitter taste receptors of the T2R family in the
RT gastrointestinal tract and enteroendocrine STC-1 cells.";
RL Proc. Natl. Acad. Sci. U.S.A. 99:2392-2397(2002).
RN [4]
RP REVIEW.
RX PubMed=12139982; DOI=10.1016/s0959-4388(02)00345-8;
RA Montmayeur J.-P., Matsunami H.;
RT "Receptors for bitter and sweet taste.";
RL Curr. Opin. Neurobiol. 12:366-371(2002).
RN [5]
RP REVIEW.
RX PubMed=11696554; DOI=10.1074/jbc.r100054200;
RA Margolskee R.F.;
RT "Molecular mechanisms of bitter and sweet taste transduction.";
RL J. Biol. Chem. 277:1-4(2002).
RN [6]
RP REVIEW.
RX PubMed=12581520; DOI=10.1016/s0092-8674(03)00071-0;
RA Zhang Y., Hoon M.A., Chandrashekar J., Mueller K.L., Cook B., Wu D.,
RA Zuker C.S., Ryba N.J.;
RT "Coding of sweet, bitter, and umami tastes: different receptor cells
RT sharing similar signaling pathways.";
RL Cell 112:293-301(2003).
CC -!- FUNCTION: Receptor that may play a role in the perception of bitterness
CC and is gustducin-linked. May play a role in sensing the chemical
CC composition of the gastrointestinal content. The activity of this
CC receptor may stimulate alpha gustducin, mediate PLC-beta-2 activation
CC and lead to the gating of TRPM5.
CC -!- SUBCELLULAR LOCATION: Membrane; Multi-pass membrane protein.
CC -!- TISSUE SPECIFICITY: Expressed in subsets of taste receptor cells of the
CC tongue and palate epithelium and exclusively in gustducin-positive
CC cells. Expressed in 15% taste bud cells in circumvallate and foliate
CC papillae but only in 2% in fungiform papillae. Expressed in the
CC duodenum, antrum and fundus (part of the stomach).
CC {ECO:0000269|PubMed:11854532}.
CC -!- MISCELLANEOUS: Most taste cells may be activated by a limited number of
CC bitter compounds; individual taste cells can discriminate among bitter
CC stimuli.
CC -!- SIMILARITY: Belongs to the G-protein coupled receptor T2R family.
CC {ECO:0000305}.
CC -!- CAUTION: This protein was previously referred to as T2R7 but is now
CC considered to be the ortholog of human TAS2R13. {ECO:0000305}.
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DR EMBL; AF227144; AAF43917.1; -; mRNA.
DR RefSeq; NP_076487.1; NM_023997.1.
DR AlphaFoldDB; Q9JKT7; -.
DR SMR; Q9JKT7; -.
DR STRING; 10116.ENSRNOP00000007521; -.
DR GlyGen; Q9JKT7; 1 site.
DR PhosphoSitePlus; Q9JKT7; -.
DR PaxDb; Q9JKT7; -.
DR GeneID; 78983; -.
DR KEGG; rno:78983; -.
DR UCSC; RGD:620738; rat.
DR CTD; 387349; -.
DR RGD; 620738; Tas2r7.
DR eggNOG; ENOG502TE6X; Eukaryota.
DR HOGENOM; CLU_072337_2_0_1; -.
DR InParanoid; Q9JKT7; -.
DR OMA; GLRIMIF; -.
DR OrthoDB; 1061430at2759; -.
DR PhylomeDB; Q9JKT7; -.
DR TreeFam; TF335891; -.
DR Reactome; R-RNO-418594; G alpha (i) signalling events.
DR Reactome; R-RNO-420499; Class C/3 (Metabotropic glutamate/pheromone receptors).
DR Reactome; R-RNO-9717207; Sensory perception of sweet, bitter, and umami (glutamate) taste.
DR PRO; PR:Q9JKT7; -.
DR Proteomes; UP000002494; Chromosome 4.
DR Bgee; ENSRNOG00000005717; Expressed in heart.
DR Genevisible; Q9JKT7; RN.
DR GO; GO:0016021; C:integral component of membrane; IBA:GO_Central.
DR GO; GO:0033038; F:bitter taste receptor activity; ISO:RGD.
DR GO; GO:0004930; F:G protein-coupled receptor activity; IEA:UniProtKB-KW.
DR GO; GO:0008527; F:taste receptor activity; TAS:UniProtKB.
DR GO; GO:0001580; P:detection of chemical stimulus involved in sensory perception of bitter taste; ISO:RGD.
DR GO; GO:0032467; P:positive regulation of cytokinesis; ISO:RGD.
DR InterPro; IPR007960; TAS2R.
DR Pfam; PF05296; TAS2R; 1.
PE 1: Evidence at protein level;
KW G-protein coupled receptor; Glycoprotein; Membrane; Receptor;
KW Reference proteome; Sensory transduction; Taste; Transducer; Transmembrane;
KW Transmembrane helix.
FT CHAIN 1..305
FT /note="Taste receptor type 2 member 13"
FT /id="PRO_0000082253"
FT TOPO_DOM 1..7
FT /note="Extracellular"
FT /evidence="ECO:0000255"
FT TRANSMEM 8..28
FT /note="Helical; Name=1"
FT /evidence="ECO:0000255"
FT TOPO_DOM 29..42
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
FT TRANSMEM 43..63
FT /note="Helical; Name=2"
FT /evidence="ECO:0000255"
FT TOPO_DOM 64..88
FT /note="Extracellular"
FT /evidence="ECO:0000255"
FT TRANSMEM 89..109
FT /note="Helical; Name=3"
FT /evidence="ECO:0000255"
FT TOPO_DOM 110..128
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
FT TRANSMEM 129..149
FT /note="Helical; Name=4"
FT /evidence="ECO:0000255"
FT TOPO_DOM 150..182
FT /note="Extracellular"
FT /evidence="ECO:0000255"
FT TRANSMEM 183..203
FT /note="Helical; Name=5"
FT /evidence="ECO:0000255"
FT TOPO_DOM 204..232
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
FT TRANSMEM 233..253
FT /note="Helical; Name=6"
FT /evidence="ECO:0000255"
FT TOPO_DOM 254..262
FT /note="Extracellular"
FT /evidence="ECO:0000255"
FT TRANSMEM 263..283
FT /note="Helical; Name=7"
FT /evidence="ECO:0000255"
FT TOPO_DOM 284..305
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
FT CARBOHYD 162
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
SQ SEQUENCE 305 AA; 35595 MW; 533BABD8C8BA4BE9 CRC64;
MGSSLYDILT IVMIAEFIFG NVTNGFIVLT NCIAWLSKRT LSFIGWIQLF LAISRVVLIW
EMLLAWLKYM KYSFSYLAGT ELRVMMLTWV VSNHFSLWLA TILSIFYLLK IASFSRPVFL
YLKWRVKKVL LLILLGNLIF LMFNILQINT HIEDWMDQYK RNITWDSRVN EFVGFSNLVL
LEMIMFSVTP FTVALVSFIL LIFSLWKHLQ KMHLSSRGER DPSTKAHVNA LRIMVSFLLL
YATYFISFFI SLIPMAHKKG LDLMFSLTVG LFYPSSHSFI LILGHSNLRH SSCLVITYLR
CKEKD
