ID   T2R31_PANTR             Reviewed;         309 AA.
AC   Q646B9;
DT   23-NOV-2004, integrated into UniProtKB/Swiss-Prot.
DT   25-OCT-2004, sequence version 1.
DT   03-AUG-2022, entry version 73.
DE   RecName: Full=Taste receptor type 2 member 31;
DE            Short=T2R31;
DE   AltName: Full=Taste receptor type 2 member 44;
DE            Short=T2R44;
GN   Name=TAS2R31; Synonyms=TAS2R44;
OS   Pan troglodytes (Chimpanzee).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae;
OC   Pan.
OX   NCBI_TaxID=9598;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=15496549; DOI=10.1093/molbev/msi027;
RA   Fischer A., Gilad Y., Man O., Paeaebo S.;
RT   "Evolution of bitter taste receptors in humans and apes.";
RL   Mol. Biol. Evol. 22:432-436(2005).
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 (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Membrane; Multi-pass membrane protein.
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}.
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DR   EMBL; AY724878; AAU21100.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q646B9; -.
DR   SMR; Q646B9; -.
DR   InParanoid; Q646B9; -.
DR   Proteomes; UP000002277; Unplaced.
DR   GO; GO:0016021; C:integral component of membrane; IBA:GO_Central.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProt.
DR   GO; GO:0033038; F:bitter taste receptor activity; IBA:GO_Central.
DR   GO; GO:0004930; F:G protein-coupled receptor activity; IEA:UniProtKB-KW.
DR   GO; GO:0001580; P:detection of chemical stimulus involved in sensory perception of bitter taste; IBA:GO_Central.
DR   InterPro; IPR007960; TAS2R.
DR   Pfam; PF05296; TAS2R; 1.
PE   3: Inferred from homology;
KW   G-protein coupled receptor; Glycoprotein; Membrane; Receptor;
KW   Reference proteome; Sensory transduction; Taste; Transducer; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..309
FT                   /note="Taste receptor type 2 member 31"
FT                   /id="PRO_0000082311"
FT   TOPO_DOM        1..2
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        3..23
FT                   /note="Helical; Name=1"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        24..55
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        56..76
FT                   /note="Helical; Name=2"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        77..100
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        101..121
FT                   /note="Helical; Name=3"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        122..126
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        127..147
FT                   /note="Helical; Name=4"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        148..181
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        182..202
FT                   /note="Helical; Name=5"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        203..229
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        230..250
FT                   /note="Helical; Name=6"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        251..259
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        260..280
FT                   /note="Helical; Name=7"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        281..309
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        161
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   309 AA;  35386 MW;  A6EB4625EACB5D90 CRC64;
     MTTFIPIIFS SLVVVIFVIG NFANGFIALV NSIEWFKRQK ISFADQILTA LAVSRVGLLW
     VLLLNWYSTV LNPAFYSVEV RTTAYNVWAV TGHFSNWLAT SLSIFYLLKI ANFSNLIFLH
     LKRRVKSVIL VMLLGPLLFL ACQLFMINMK EIVRTKEYEG NMTWKIKLRS AVYLSDATVT
     TLGNLVPFTL TLLCFLLLIC SLCKHLKKMQ LHGKGSQDPS TKVHIKVLQT VISFLLLCAI
     YFLSIMISVW SFGSLKNKPV FMFCKAMRFS YPSIHPFILI WGNKKLKQTF LSVLRQVRYW
     VKGEKPSSP