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Conserved domains on  [gi|47824876|ref|NP_001001451|]
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taste receptor type 2 member 38 [Mus musculus]

Protein Classification

G protein-coupled receptor family protein; olfactory receptor subfamily 2A protein( domain architecture ID 11606655)

G protein-coupled receptor family protein is a seven-transmembrane G protein-coupled receptor (7TM-GPCR) family protein which typically transmits an extracellular signal into the cell by the conformational rearrangement of the 7TM helices and by the subsequent binding and activation of an intracellular heterotrimeric G protein; GPCR ligands include light-sensitive compounds, odors, pheromones, hormones, and neurotransmitters| olfactory receptor (OR) subfamily 2A protein, such as human olfactory receptor 2A2 and related proteins in other mammals and sauropsids; ORs play a central role in olfaction, the sense of smell, and belong to the class A rhodopsin-like family of seven-transmembrane G protein-coupled receptors (7TM GPCRs)

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
7tm_TAS2R38 cd15025
mammalian taste receptor 2, subtype 38, member of the seven-transmembrane G protein-coupled ...
16-308 1.18e-159

mammalian taste receptor 2, subtype 38, member of the seven-transmembrane G protein-coupled receptor superfamily; This group includes the mammalian taste receptor 2 (T2R) subtype 38, which functions as a bitter taste receptor. Genetic variants of human TAS2R38 influence the ability to taste synthetic compounds 6-n-propylthiouracil (PROP) and phenylthiocarbamide (PTC). Thus, sensitivity to the bitter taste of PROP is often used as a marker for individual differences in taste perception that can affect food preferences and intake. The human TAS2R family contains about 25 functional members, which are glycoproteins and have the ability to form both homomeric and heteromeric receptor complexes. Five basic tastes are perceived by animals: bitter, sweet, sour, salty, and umami (the taste of glutamate, MSG). Among these, sour and salty are mediated by ion channels, while the perception of umami and sweet tastes is mediated by the TAS1R taste receptors, which belong to the class C GPCR family. The TAS2Rs in humans have a short extracellular N-terminus and the ligand binds within the transmembrane domain, whereas the TAS1Rs have a large N-terminal extracellular domain composed of the Venus flytrap module that forms the orthosteric (primary) ligand binding site. Signal transduction of bitter taste involves binding of bitter compounds to TAS2Rs linked to the alpha-subunit of gustducin, a heterotrimeric G protein expressed in taste receptor cells. This G-alpha subunit stimulates phosphodiesterase and decreases cAMP and cGMP levels. Further steps in the signaling cascade is still unknown. The beta-gamma-subunit of gustducin also mediates bitter taste transduction by activating phospholipase C, which leads to an increased formation of IP3 (inositol triphosphate) and DAG (diacylglycerol), thereby causing release of Ca2+ from intracellular stores and enhanced neurotransmitter release.


:

Pssm-ID: 320153  Cd Length: 293  Bit Score: 447.75  E-value: 1.18e-159
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  16 ISFLFLSAMEFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFLQGLLLLDAIQLACFQQMKDPLSHNYQAI 95
Cdd:cd15025   1 ITFLFLSVLEFAVGILANAFIVLVNFWDVVKRQPLNNCDIVLLCLSITRLFLQGLLFLDAIQLTHFQQMKDPLSHSYQAI 80
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  96 LTLWMIANQVSLWLAACLSLLYCSKIVRFSHTFPLHVASWVSRRFLQMLLVVLLLSCICTALCLWDFFCRSHSTVTSLLH 175
Cdd:cd15025  81 IMLWMIANQVSLWLAACLSLLYCSKIARFSHTFLLCLASWVSRRIPQMLLGSLLFSCICTVLCVWDFFSRSHSTVTSSLH 160
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 176 LNSTEFSLQIAKLNFFYSFIFCNVGSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLISFFCFY 255
Cdd:cd15025 161 MNNTELNLQIEKLNFFYSFLFCNVGSVPPFLLFLVSSGVLIISLGRHMRTMKAQTSGSRDPSLEAHIRALKSLVSFLCFY 240
                       250       260       270       280       290
                ....*....|....*....|....*....|....*....|....*....|...
gi 47824876 256 VVSFCAALISIPLLMLWHNKGGVMICIGMMAACPSGHAAILISGNAKLRRAIE 308
Cdd:cd15025 241 VVSFCAALISVPLLLLWHNKIGVMVCVGIMAACPSGHAAILISGNAKLRRVVK 293
 
Name Accession Description Interval E-value
7tm_TAS2R38 cd15025
mammalian taste receptor 2, subtype 38, member of the seven-transmembrane G protein-coupled ...
16-308 1.18e-159

mammalian taste receptor 2, subtype 38, member of the seven-transmembrane G protein-coupled receptor superfamily; This group includes the mammalian taste receptor 2 (T2R) subtype 38, which functions as a bitter taste receptor. Genetic variants of human TAS2R38 influence the ability to taste synthetic compounds 6-n-propylthiouracil (PROP) and phenylthiocarbamide (PTC). Thus, sensitivity to the bitter taste of PROP is often used as a marker for individual differences in taste perception that can affect food preferences and intake. The human TAS2R family contains about 25 functional members, which are glycoproteins and have the ability to form both homomeric and heteromeric receptor complexes. Five basic tastes are perceived by animals: bitter, sweet, sour, salty, and umami (the taste of glutamate, MSG). Among these, sour and salty are mediated by ion channels, while the perception of umami and sweet tastes is mediated by the TAS1R taste receptors, which belong to the class C GPCR family. The TAS2Rs in humans have a short extracellular N-terminus and the ligand binds within the transmembrane domain, whereas the TAS1Rs have a large N-terminal extracellular domain composed of the Venus flytrap module that forms the orthosteric (primary) ligand binding site. Signal transduction of bitter taste involves binding of bitter compounds to TAS2Rs linked to the alpha-subunit of gustducin, a heterotrimeric G protein expressed in taste receptor cells. This G-alpha subunit stimulates phosphodiesterase and decreases cAMP and cGMP levels. Further steps in the signaling cascade is still unknown. The beta-gamma-subunit of gustducin also mediates bitter taste transduction by activating phospholipase C, which leads to an increased formation of IP3 (inositol triphosphate) and DAG (diacylglycerol), thereby causing release of Ca2+ from intracellular stores and enhanced neurotransmitter release.


Pssm-ID: 320153  Cd Length: 293  Bit Score: 447.75  E-value: 1.18e-159
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  16 ISFLFLSAMEFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFLQGLLLLDAIQLACFQQMKDPLSHNYQAI 95
Cdd:cd15025   1 ITFLFLSVLEFAVGILANAFIVLVNFWDVVKRQPLNNCDIVLLCLSITRLFLQGLLFLDAIQLTHFQQMKDPLSHSYQAI 80
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  96 LTLWMIANQVSLWLAACLSLLYCSKIVRFSHTFPLHVASWVSRRFLQMLLVVLLLSCICTALCLWDFFCRSHSTVTSLLH 175
Cdd:cd15025  81 IMLWMIANQVSLWLAACLSLLYCSKIARFSHTFLLCLASWVSRRIPQMLLGSLLFSCICTVLCVWDFFSRSHSTVTSSLH 160
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 176 LNSTEFSLQIAKLNFFYSFIFCNVGSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLISFFCFY 255
Cdd:cd15025 161 MNNTELNLQIEKLNFFYSFLFCNVGSVPPFLLFLVSSGVLIISLGRHMRTMKAQTSGSRDPSLEAHIRALKSLVSFLCFY 240
                       250       260       270       280       290
                ....*....|....*....|....*....|....*....|....*....|...
gi 47824876 256 VVSFCAALISIPLLMLWHNKGGVMICIGMMAACPSGHAAILISGNAKLRRAIE 308
Cdd:cd15025 241 VVSFCAALISVPLLLLWHNKIGVMVCVGIMAACPSGHAAILISGNAKLRRVVK 293
TAS2R pfam05296
Taste receptor protein (TAS2R); This family consists of several forms of eukaryotic taste ...
14-313 1.62e-49

Taste receptor protein (TAS2R); This family consists of several forms of eukaryotic taste receptor proteins (TAS2Rs). TAS2Rs are G protein-coupled receptors expressed in subsets of taste receptor cells of the tongue and palate epithelia in humans and mice, and are organized in the genome in clusters. The proteins are genetically linked to loci that influence bitter perception in mice and humans.


Pssm-ID: 283059  Cd Length: 303  Bit Score: 167.45  E-value: 1.62e-49
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876    14 AKISFLFLSAMEFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFLQGLLLLDAIQLACFQQMKDPlSHNYQ 93
Cdd:pfam05296   5 LEGIFLIVAVVEFLLGILGNGFIVLVNCIDWVKKRKLSSIDLILTSLAISRICLQWLILLDNFIIVFFPNTYLS-GKLLR 83
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876    94 AILTLWMIANQVSLWLAACLSLLYCSKIVRFSHTFPLHVASWVSRRFLQMLLVVLLLSCICTALCLWDFfcRSHSTVTSL 173
Cdd:pfam05296  84 IISLFWTFLNHLSLWFATCLSVFYCLKIANFSHPIFLWLKWRISKVVPWLLLGSLLISFLNTVQIPNSI--KASIDPELI 161
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876   174 LHLNSTEFSLQIAKLNFFYSFIFCNVGSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLISFFC 253
Cdd:pfam05296 162 KYKRNTTWDLRVSKFELFSSLVLLNLGSLLPFIVFLISFLLLIFSLWRHTRQMQLNSTGFRDPSTEAHVRALKSLISFLI 241
                         250       260       270       280       290       300
                  ....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876   254 FYVVSFCAALISIPLLMLWHNKGGVMICIGMMAACPSGHAAILISGNAKLRRAIETMLFW 313
Cdd:pfam05296 242 LYISYFLSFLISIISFLLPKNKLAFIFGEIVTYLYPSGHSFILILGNPKLKQAFLKILLK 301
 
Name Accession Description Interval E-value
7tm_TAS2R38 cd15025
mammalian taste receptor 2, subtype 38, member of the seven-transmembrane G protein-coupled ...
16-308 1.18e-159

mammalian taste receptor 2, subtype 38, member of the seven-transmembrane G protein-coupled receptor superfamily; This group includes the mammalian taste receptor 2 (T2R) subtype 38, which functions as a bitter taste receptor. Genetic variants of human TAS2R38 influence the ability to taste synthetic compounds 6-n-propylthiouracil (PROP) and phenylthiocarbamide (PTC). Thus, sensitivity to the bitter taste of PROP is often used as a marker for individual differences in taste perception that can affect food preferences and intake. The human TAS2R family contains about 25 functional members, which are glycoproteins and have the ability to form both homomeric and heteromeric receptor complexes. Five basic tastes are perceived by animals: bitter, sweet, sour, salty, and umami (the taste of glutamate, MSG). Among these, sour and salty are mediated by ion channels, while the perception of umami and sweet tastes is mediated by the TAS1R taste receptors, which belong to the class C GPCR family. The TAS2Rs in humans have a short extracellular N-terminus and the ligand binds within the transmembrane domain, whereas the TAS1Rs have a large N-terminal extracellular domain composed of the Venus flytrap module that forms the orthosteric (primary) ligand binding site. Signal transduction of bitter taste involves binding of bitter compounds to TAS2Rs linked to the alpha-subunit of gustducin, a heterotrimeric G protein expressed in taste receptor cells. This G-alpha subunit stimulates phosphodiesterase and decreases cAMP and cGMP levels. Further steps in the signaling cascade is still unknown. The beta-gamma-subunit of gustducin also mediates bitter taste transduction by activating phospholipase C, which leads to an increased formation of IP3 (inositol triphosphate) and DAG (diacylglycerol), thereby causing release of Ca2+ from intracellular stores and enhanced neurotransmitter release.


Pssm-ID: 320153  Cd Length: 293  Bit Score: 447.75  E-value: 1.18e-159
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  16 ISFLFLSAMEFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFLQGLLLLDAIQLACFQQMKDPLSHNYQAI 95
Cdd:cd15025   1 ITFLFLSVLEFAVGILANAFIVLVNFWDVVKRQPLNNCDIVLLCLSITRLFLQGLLFLDAIQLTHFQQMKDPLSHSYQAI 80
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  96 LTLWMIANQVSLWLAACLSLLYCSKIVRFSHTFPLHVASWVSRRFLQMLLVVLLLSCICTALCLWDFFCRSHSTVTSLLH 175
Cdd:cd15025  81 IMLWMIANQVSLWLAACLSLLYCSKIARFSHTFLLCLASWVSRRIPQMLLGSLLFSCICTVLCVWDFFSRSHSTVTSSLH 160
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 176 LNSTEFSLQIAKLNFFYSFIFCNVGSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLISFFCFY 255
Cdd:cd15025 161 MNNTELNLQIEKLNFFYSFLFCNVGSVPPFLLFLVSSGVLIISLGRHMRTMKAQTSGSRDPSLEAHIRALKSLVSFLCFY 240
                       250       260       270       280       290
                ....*....|....*....|....*....|....*....|....*....|...
gi 47824876 256 VVSFCAALISIPLLMLWHNKGGVMICIGMMAACPSGHAAILISGNAKLRRAIE 308
Cdd:cd15025 241 VVSFCAALISVPLLLLWHNKIGVMVCVGIMAACPSGHAAILISGNAKLRRVVK 293
7tm_TAS2R cd13950
mammalian taste receptors type 2, member of the seven-transmembrane G protein-coupled receptor ...
18-306 2.73e-73

mammalian taste receptors type 2, member of the seven-transmembrane G protein-coupled receptor superfamily; This group represents a family of mammalian taste receptors (TAS2Rs), which function as bitter taste receptors. The human TAS2R family contains about 25 functional members, which are glycoproteins and have the ability to form both homomeric and heteromeric receptor complexes. Five basic tastes are perceived by animals: bitter, sweet, sour, salty, and umami (the taste of glutamate, MSG). Among these, sour and salty are mediated by ion channels, while the perception of umami and sweet tastes is mediated by the TAS1R taste receptors, which belong to the class C GPCR family. The TAS2Rs in humans have a short extracellular N-terminus and the ligand binds within the transmembrane domain, whereas the TAS1Rs have a large N-terminal extracellular domain composed of the Venus flytrap module that forms the orthosteric (primary) ligand binding site. Signal transduction of bitter taste involves binding of bitter compounds to TAS2Rs linked to the alpha-subunit of gustducin, a heterotrimeric G protein expressed in taste receptor cells. This G-alpha subunit stimulates phosphodiesterase and decreases cAMP and cGMP levels. Further steps in the signaling cascade is still unknown. The beta-gamma-subunit of gustducin also mediates bitter taste transduction by activating phospholipase C, which leads to an increased formation of IP3 (inositol triphosphate) and DAG (diacylglycerol), thereby causing release of Ca2+ from intracellular stores and enhanced neurotransmitter release.


Pssm-ID: 320088  Cd Length: 288  Bit Score: 227.83  E-value: 2.73e-73
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  18 FLFLSAMEFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFLQGLLLLDAIQLACFQQMkDPLSHNYQAILT 97
Cdd:cd13950   2 FLIIIVGEFLIGILGNGFIVLVNCIDWIKSRKLSSIDFILTSLAISRIGLLWTIILNSILSVFYPDI-YLSGNVLRTLDI 80
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  98 LWMIANQVSLWLAACLSLLYCSKIVRFSHTFPLHVASWVSRRFLQMLLVVLLLSCICTALCLWDFFCRSHstvTSLLHLN 177
Cdd:cd13950  81 LWMFLNHSSLWFATCLSVFYCLKIANFSHPFFLWLKWRINRVVPWLLLGSLLISLLISLPIVWVIYSVYQ---NNSKEES 157
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 178 STEFSLQIAKLNFFYSFIFCNVGSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLISFFCFYVV 257
Cdd:cd13950 158 NNTSKFQVKKTSYFYSFILLNLGSLIPFILSLISFFLLIFSLWRHTRQMQLNATGSRDPSTEAHIRAMKSMISFLILFII 237
                       250       260       270       280
                ....*....|....*....|....*....|....*....|....*....
gi 47824876 258 SFCAALISIPLLMLWHNKGGVMICIGMMAACPSGHAAILISGNAKLRRA 306
Cdd:cd13950 238 YFLALIITILSYSFLENKLAVLFCEVLMALYPSGHSFILILGNPKLKQA 286
TAS2R pfam05296
Taste receptor protein (TAS2R); This family consists of several forms of eukaryotic taste ...
14-313 1.62e-49

Taste receptor protein (TAS2R); This family consists of several forms of eukaryotic taste receptor proteins (TAS2Rs). TAS2Rs are G protein-coupled receptors expressed in subsets of taste receptor cells of the tongue and palate epithelia in humans and mice, and are organized in the genome in clusters. The proteins are genetically linked to loci that influence bitter perception in mice and humans.


Pssm-ID: 283059  Cd Length: 303  Bit Score: 167.45  E-value: 1.62e-49
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876    14 AKISFLFLSAMEFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFLQGLLLLDAIQLACFQQMKDPlSHNYQ 93
Cdd:pfam05296   5 LEGIFLIVAVVEFLLGILGNGFIVLVNCIDWVKKRKLSSIDLILTSLAISRICLQWLILLDNFIIVFFPNTYLS-GKLLR 83
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876    94 AILTLWMIANQVSLWLAACLSLLYCSKIVRFSHTFPLHVASWVSRRFLQMLLVVLLLSCICTALCLWDFfcRSHSTVTSL 173
Cdd:pfam05296  84 IISLFWTFLNHLSLWFATCLSVFYCLKIANFSHPIFLWLKWRISKVVPWLLLGSLLISFLNTVQIPNSI--KASIDPELI 161
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876   174 LHLNSTEFSLQIAKLNFFYSFIFCNVGSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLISFFC 253
Cdd:pfam05296 162 KYKRNTTWDLRVSKFELFSSLVLLNLGSLLPFIVFLISFLLLIFSLWRHTRQMQLNSTGFRDPSTEAHVRALKSLISFLI 241
                         250       260       270       280       290       300
                  ....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876   254 FYVVSFCAALISIPLLMLWHNKGGVMICIGMMAACPSGHAAILISGNAKLRRAIETMLFW 313
Cdd:pfam05296 242 LYISYFLSFLISIISFLLPKNKLAFIFGEIVTYLYPSGHSFILILGNPKLKQAFLKILLK 301
7tm_TAS2R1 cd15016
mammalian taste receptor 2, subtype 1, member of the seven-transmembrane G protein-coupled ...
16-305 9.14e-38

mammalian taste receptor 2, subtype 1, member of the seven-transmembrane G protein-coupled receptor superfamily; This group includes the mammalian taste receptor 2 (TAS2R) subtype 1, which functions as a bitter taste receptor. The human TAS2R family contains about 25 functional members, which are glycoproteins and have the ability to form both homomeric and heteromeric receptor complexes. Five basic tastes are perceived by animals: bitter, sweet, sour, salty, and umami (the taste of glutamate, MSG). Among these, sour and salty are mediated by ion channels, while the perception of umami and sweet tastes is mediated by the TAS1R taste receptors, which belong to the class C GPCR family. The TAS2Rs in humans have a short extracellular N-terminus and the ligand binds within the transmembrane domain, whereas the TAS1Rs have a large N-terminal extracellular domain composed of the Venus flytrap module that forms the orthosteric (primary) ligand binding site. Signal transduction of bitter taste involves binding of bitter compounds to TAS2Rs linked to the alpha-subunit of gustducin, a heterotrimeric G protein expressed in taste receptor cells. This G-alpha subunit stimulates phosphodiesterase and decreases cAMP and cGMP levels. Further steps in the signaling cascade is still unknown. The beta-gamma-subunit of gustducin also mediates bitter taste transduction by activating phospholipase C, which leads to an increased formation of IP3 (inositol triphosphate) and DAG (diacylglycerol), thereby causing release of Ca2+ from intracellular stores and enhanced neurotransmitter release.


Pssm-ID: 320144  Cd Length: 283  Bit Score: 135.81  E-value: 9.14e-38
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  16 ISFLFLSAMEFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFLQGLLLLdaIQLACFQQMKDPLShnyQAI 95
Cdd:cd15016   1 IIHLLFAVIQFLTGIFANGFIVVVNGIDLIKQRKMAPLDLLLSCLATSRICLQLFIFY--LNLAVLSLIKFSVF---AEN 75
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  96 LTLWMIANQVSLWLAACLSLLYCSKIVRFSHtfPLHvaSWVSRRFLQMLLVVLLLSCICTALClwDFFCRSHSTVTS--- 172
Cdd:cd15016  76 FVIFMFVNELGLWFATWLGVFYCAKIATIAH--PLF--LWLKMRISKLVPWLILGSLLYASIT--SVFHSKYTWPISqkl 149
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 173 LLHLNSTEFSLQIaKLNFFYSFIFCNVGSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLISFF 252
Cdd:cd15016 150 LLSFFSSNATTQI-KEISALQLSLLIFELSLPLLIFLVAVLLLIFSLGRHTRQMRTTAAGTRDPSRSAHISALLSILSFL 228
                       250       260       270       280       290
                ....*....|....*....|....*....|....*....|....*....|...
gi 47824876 253 CFYvVSFCAALISIPLLMLWHNKGGVMICIGMMAACPSGHAAILISGNAKLRR 305
Cdd:cd15016 229 ILY-LSHYMAAALLSSQIFQFGSLFFLFCILVIGAYPSGHSIILILGNPKLKQ 280
7tm_TAS2R3 cd15020
mammalian taste receptor 2, subtype 3, member of the seven-transmembrane G protein-coupled ...
16-306 2.54e-37

mammalian taste receptor 2, subtype 3, member of the seven-transmembrane G protein-coupled receptor superfamily; This group includes the mammalian taste receptor 2 (TAS2R) subtype 3, which functions as a bitter taste receptor. The human TAS2R family contains about 25 functional members, which are glycoproteins and have the ability to form both homomeric and heteromeric receptor complexes. Five basic tastes are perceived by animals: bitter, sweet, sour, salty, and umami (the taste of glutamate, MSG). Among these, sour and salty are mediated by ion channels, while the perception of umami and sweet tastes is mediated by the TAS1R taste receptors, which belong to the class C GPCR family. The TAS2Rs in humans have a short extracellular N-terminus and the ligand binds within the transmembrane domain, whereas the TAS1Rs have a large N-terminal extracellular domain composed of the Venus flytrap module that forms the orthosteric (primary) ligand binding site. Signal transduction of bitter taste involves binding of bitter compounds to TAS2Rs linked to the alpha-subunit of gustducin, a heterotrimeric G protein expressed in taste receptor cells. This G-alpha subunit stimulates phosphodiesterase and decreases cAMP and cGMP levels. Further steps in the signaling cascade is still unknown. The beta-gamma-subunit of gustducin also mediates bitter taste transduction by activating phospholipase C, which leads to an increased formation of IP3 (inositol triphosphate) and DAG (diacylglycerol), thereby causing release of Ca2+ from intracellular stores and enhanced neurotransmitter release.


Pssm-ID: 320148  Cd Length: 290  Bit Score: 135.21  E-value: 2.54e-37
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  16 ISFLFLSAMEFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFLQGLLLLDAIQLACFQQMKDpLSHNYQAI 95
Cdd:cd15020   1 IVFLVLTITEFILGIWVNGFIGLVNCIHWIKSKKISLSDFIITNLALSRIILLCIIITDSLLLVFYPHFHD-SGIIMQII 79
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  96 LTLWMIANQVSLWLAACLSLLYCSKIVRFSHTFPLHVASWVSRRFLQMLLVVLLLSCICTALCLWDFFCRSHSTVTSLLH 175
Cdd:cd15020  80 DIFWTFANHLSIWLVTCLSVFYCLKIANFSHPAFLWLKWRVSRVVVWILLGSVLFSFFSTAALIKKFKIYSALRQMRLTE 159
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 176 LNSTEFSLQiaKLNFFYSFIFCNVGSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLISFFCFY 255
Cdd:cd15020 160 NCTEDIRRK--EIEYYVAHILGALWSVIPFIVSLISYLLLILSLRRHTQQMQHHTTGSRDPSTEAHVRATKIILSFLLLF 237
                       250       260       270       280       290
                ....*....|....*....|....*....|....*....|....*....|.
gi 47824876 256 VVSFCAALISIPLLMLWHNKGGVMICIGMMAACPSGHAAILISGNAKLRRA 306
Cdd:cd15020 238 IFYFVAFFIGSSSFFLPDTKLAIMIGELITAAYPSVHSFILILQNNKLKQA 288
7tm_TAS2R40-like cd15908
taste receptor 2, subtypes 39 and 40, and similar receptors, member of the seven-transmembrane ...
19-306 2.13e-35

taste receptor 2, subtypes 39 and 40, and similar receptors, member of the seven-transmembrane G protein-coupled receptor superfamily; This group includes the mammalian taste receptor 2 (TAS2R) subtypes 39 and 40, which function as bitter taste receptors. The human TAS2R family contains about 25 functional members, which are glycoproteins and have the ability to form both homomeric and heteromeric receptor complexes. Five basic tastes are perceived by animals: bitter, sweet, sour, salty, and umami (taste of glutamate MSG). Among these, sour and salty are mediated by ion channels, while the perception of umami and sweet tastes is mediated by the TAS1R taste receptors, which belong to the class C GPCR family. The TAS2Rs in humans have a short extracellular N-terminus and the ligand binds within the transmembrane domain, whereas the TAS1Rs have a large N-terminal extracellular domain composed of the Venus flytrap module that forms the orthosteric (primary) ligand binding site. Signal transduction of bitter taste involves binding of bitter compounds to TAS2Rs linked to the alpha-subunit of gustducin, a heterotrimeric G protein expressed in taste receptor cells. This G-alpha subunit stimulates phosphodiesterase and decreases cAMP and cGMP levels. Further steps in the signaling cascade is still unknown. The beta-gamma-subunit of gustducin also mediates bitter taste transduction by activating phospholipase C, which leads to an increased formation of IP3 (inositol triphosphate) and DAG (diacylglycerol), thereby causing release of Ca2+ from intracellular stores and enhanced neurotransmitter release.


Pssm-ID: 320574  Cd Length: 289  Bit Score: 129.89  E-value: 2.13e-35
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  19 LFLSAMEFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFLQGLLLLDAIQLACFqqmkdPLSHN----YQA 94
Cdd:cd15908   3 LVILGIESIIGILGNGFIVAINLTEWVRSKRLSTSDRILIFLSLSRLCLQSWMMLENVCSLFF-----PSFYNednvYKT 77
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  95 ILTLWMIANQVSLWLAACLSLLYCSKIVRFSHTFPLHVASWVSRRFLQMLLVVLLLSCICTALCLWDFFCRSHSTVTSLL 174
Cdd:cd15908  78 FKVIFMFLNYSSLWFAAWLSVFYCVKIANFTHPLFLWLKWRITSLMPWLLILSVLISFSTSLPFSWDVYNVYCNSSIPLP 157
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 175 HLNSTEFSLqIAKLNFFYSFIFCNVGSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLISFFCF 254
Cdd:cd15908 158 SSNSTKKKY-IKETNLVNLIFLYNVGIFLPLIMFILSATLLILSLKRHTLQMQNNATGSRDPSMEAHMGAIKAISSFLIL 236
                       250       260       270       280       290
                ....*....|....*....|....*....|....*....|....*....|..
gi 47824876 255 YVVSFCAALISIPlLMLWHNKGGVMICIGMMAACPSGHAAILISGNAKLRRA 306
Cdd:cd15908 237 YIFNFVALILTLS-NIFDTNSTWNILCKIIMAAYPAGHSILLILGNPKLRRA 287
7tm_TAS2R10 cd15021
mammalian taste receptor 2, subtype 10, member of the seven-transmembrane G protein-coupled ...
18-306 6.29e-29

mammalian taste receptor 2, subtype 10, member of the seven-transmembrane G protein-coupled receptor superfamily; This group includes the mammalian taste receptor 2 (TAS2R) subtype 10, which functions as a bitter taste receptor. The human TAS2R family contains about 25 functional members, which are glycoproteins and have the ability to form both homomeric and heteromeric receptor complexes. Five basic tastes are perceived by animals: bitter, sweet, sour, salty, and umami (the taste of glutamate, MSG). Among these, sour and salty are mediated by ion channels, while the perception of umami and sweet tastes is mediated by the TAS1R taste receptors, which belong to the class C GPCR family. The TAS2Rs in humans have a short extracellular N-terminus and the ligand binds within the transmembrane domain, whereas the TAS1Rs have a large N-terminal extracellular domain composed of the Venus flytrap module that forms the orthosteric (primary) ligand binding site. Signal transduction of bitter taste involves binding of bitter compounds to TAS2Rs linked to the alpha-subunit of gustducin, a heterotrimeric G protein expressed in taste receptor cells. This G-alpha subunit stimulates phosphodiesterase and decreases cAMP and cGMP levels. Further steps in the signaling cascade is still unknown. The beta-gamma-subunit of gustducin also mediates bitter taste transduction by activating phospholipase C, which leads to an increased formation of IP3 (inositol triphosphate) and DAG (diacylglycerol), thereby causing release of Ca2+ from intracellular stores and enhanced neurotransmitter release.


Pssm-ID: 320149  Cd Length: 285  Bit Score: 112.48  E-value: 6.29e-29
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  18 FLFLSAMEFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFLQGLLLLDAIQLACFQQMKDPLSHnYQAILT 97
Cdd:cd15021   3 LLFVVTSEAVLGVLGNGFIALVNCIDYARNKKLSKIGFILTGLAISRIFLIWIIILDAYVKLFSPHMLASGNL-IEYISY 81
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  98 LWMIANQVSLWLAACLSLLYCSKIVRFSHtfplHVASWVSRRflqmllvvLLLSCICTALCLWDFFCRSHSTVTSLL--- 174
Cdd:cd15021  82 IWVIINHLSVWFATSLSIFYFLKIANFSH----YIFLWLKRR--------IDVVFIFLIGCLLISWLISFPQVAKIIndi 149
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 175 --HLNSTEFSLQIAKLNFFYSFIFCNVGSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLISFF 252
Cdd:cd15021 150 kmKYRNTSWQLHLEKSEFFINYVFTNLGVIFFFMVALITCFLLIISLWRHNRQMQSNVSGFRDLNTEAHVKAMKVLISFI 229
                       250       260       270       280       290
                ....*....|....*....|....*....|....*....|....*....|....
gi 47824876 253 CFYVVSFCAALISIPLLMLWHNKGGVMICIGMMAACPSGHAAILISGNAKLRRA 306
Cdd:cd15021 230 ILFILYFIGISIETLCFFLPENKLLFIFGLTTACMYPCCHSFILILANSQLKQA 283
7tm_TAS2R7-like cd15023
mammalian taste receptor 2, subtypes 7 and 9, member of the seven-transmembrane G ...
18-306 1.66e-27

mammalian taste receptor 2, subtypes 7 and 9, member of the seven-transmembrane G protein-coupled receptor superfamily; This group includes the mammalian taste receptor 2 (TAS2R) subtypes 7 and 9, which function as bitter taste receptors. The human TAS2R family contains about 25 functional members, which are glycoproteins and have the ability to form both homomeric and heteromeric receptor complexes. Five basic tastes are perceived by animals: bitter, sweet, sour, salty, and umami (the taste of glutamate, MSG). Among these, sour and salty are mediated by ion channels, while the perception of umami and sweet tastes is mediated by the TAS1R taste receptors, which belong to the class C GPCR family. The TAS2Rs in humans have a short extracellular N-terminus and the ligand binds within the transmembrane domain, whereas the TAS1Rs have a large N-terminal extracellular domain composed of the Venus flytrap module that forms the orthosteric (primary) ligand binding site. Signal transduction of bitter taste involves binding of bitter compounds to TAS2Rs linked to the alpha-subunit of gustducin, a heterotrimeric G protein expressed in taste receptor cells. This G-alpha subunit stimulates phosphodiesterase and decreases cAMP and cGMP levels. Further steps in the signaling cascade is still unknown. The beta-gamma-subunit of gustducin also mediates bitter taste transduction by activating phospholipase C, which leads to an increased formation of IP3 (inositol triphosphate) and DAG (diacylglycerol), thereby causing release of Ca2+ from intracellular stores and enhanced neurotransmitter release.


Pssm-ID: 320151  Cd Length: 291  Bit Score: 108.71  E-value: 1.66e-27
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  18 FLFLSAMEFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFLQGLLLLDAIQLACFQQMKDPlSHNYQAILT 97
Cdd:cd15023   3 YMILIAGELTIGIWGNGFIVLVNCIGWLKRRDIALIDIILISLAISRICLLCVISLDGFIMVLFPDTYGN-GKLMSIIDV 81
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  98 LWMIANQVSLWLAACLSLLYCSKIVRFSHTFPLHVASWVSRRFLQMLLVVLLLSCICTALCLWDFFCRSHSTVTSLLHLN 177
Cdd:cd15023  82 FWTFTNHSSIWFTSCLSIFYLLKIANISHPLFLWLKWRINKVILAILLGSLVLSLIISVPKTENLWDDFRKCVKTKHEEN 161
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 178 STeFSLQIAKLNFFYSFIFCNVGSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLISFFCFYVV 257
Cdd:cd15023 162 IT-LKFKVSKTQGASKQVFLNLGVLVPFILSLISFLLLLFSLVRHTKQMQLHATGFRDPSTEAHMRAIKAVIIFLLLLIV 240
                       250       260       270       280
                ....*....|....*....|....*....|....*....|....*....
gi 47824876 258 SFCAALISIPLLMLWHNKGGVMICIGMMAACPSGHAAILISGNAKLRRA 306
Cdd:cd15023 241 YYLAFLVATSSYLIPQGKLVVMFGEIITLIFPSSHSFILIMGNSKLREA 289
7tm_TAS2R42 cd15024
mammalian taste receptor 2, subtype 42, member of the seven-transmembrane G protein-coupled ...
18-306 1.85e-26

mammalian taste receptor 2, subtype 42, member of the seven-transmembrane G protein-coupled receptor superfamily; This group includes the mammalian taste receptor 2 (TAS2R) subtype 42, which functions as a bitter taste receptor. The human TAS2R family contains about 25 functional members, which are glycoproteins and have the ability to form both homomeric and heteromeric receptor complexes. Five basic tastes are perceived by animals: bitter, sweet, sour, salty, and umami (the taste of glutamate, MSG). Among these, sour and salty are mediated by ion channels, while the perception of umami and sweet tastes is mediated by the TAS1R taste receptors, which belong to the class C GPCR family. The TAS2Rs in humans have a short extracellular N-terminus and the ligand binds within the transmembrane domain, whereas the TAS1Rs have a large N-terminal extracellular domain composed of the Venus flytrap module that forms the orthosteric (primary) ligand binding site. Signal transduction of bitter taste involves binding of bitter compounds to TAS2Rs linked to the alpha-subunit of gustducin, a heterotrimeric G protein expressed in taste receptor cells. This G-alpha subunit stimulates phosphodiesterase and decreases cAMP and cGMP levels. Further steps in the signaling cascade is still unknown. The beta-gamma-subunit of gustducin also mediates bitter taste transduction by activating phospholipase C, which leads to an increased formation of IP3 (inositol triphosphate) and DAG (diacylglycerol), thereby causing release of Ca2+ from intracellular stores and enhanced neurotransmitter release.


Pssm-ID: 320152  Cd Length: 288  Bit Score: 105.88  E-value: 1.85e-26
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  18 FLFLSAMEFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFLQGLLLLDAIQLACFqqmkdplSHNY----- 92
Cdd:cd15024   2 FLILAIGEFIIGMLGNGFIGLVNCSDWVKNRKISLADCILTCLAISRIGQLLVILFDSFILVLW-------PHLYgtykl 74
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  93 -QAILTLWMIANQVSLWLAACLSLLYCSKIVRFSHtfPLHVasWVSRRFLQMLLVVLLLSC--ICTALCLWDFFCRSHST 169
Cdd:cd15024  75 aKVVSILWTLTNHLTTWFATCLSIFYFLKIANFSH--PLFL--WLKWRISRVLLVLLLGSLflLFFDFLLLETFSDFWLN 150
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 170 VTSLLHLNSTEFSLQIaKLNFFYSFIFCNVGSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLI 249
Cdd:cd15024 151 IYTIDEGNLTLSSEES-KTLYVKSLILFSLIYLIPFLLSLTSLLLLFLSLVRHTRNLQLNSLGSRDSSTEAHKRAMKMVM 229
                       250       260       270       280       290
                ....*....|....*....|....*....|....*....|....*....|....*...
gi 47824876 250 SF-FCFYVVSFCAALISIPLLMLWHNKGGVMICIgMMAACPSGHAAILISGNAKLRRA 306
Cdd:cd15024 230 SFlLLFIIHFFSIQLAGWIFFFLWKKQAILFVML-TSNIFPSGHSFILILGNSKLRQT 286
7tm_TAS2R8 cd15022
mammalian taste receptor 2, subtype 8, member of the seven-transmembrane G protein-coupled ...
18-306 1.88e-24

mammalian taste receptor 2, subtype 8, member of the seven-transmembrane G protein-coupled receptor superfamily; This group includes the mammalian taste receptor 2 (TAS2R) subtype 8, which functions as a bitter taste receptor. The human TAS2R family contains about 25 functional members, which are glycoproteins and have the ability to form both homomeric and heteromeric receptor complexes. Five basic tastes are perceived by animals: bitter, sweet, sour, salty, and umami (the taste of glutamate, MSG). Among these, sour and salty are mediated by ion channels, while the perception of umami and sweet tastes is mediated by the TAS1R taste receptors, which belong to the class C GPCR family. The TAS2Rs in humans have a short extracellular N-terminus and the ligand binds within the transmembrane domain, whereas the TAS1Rs have a large N-terminal extracellular domain composed of the Venus flytrap module that forms the orthosteric (primary) ligand binding site. Signal transduction of bitter taste involves binding of bitter compounds to TAS2Rs linked to the alpha-subunit of gustducin, a heterotrimeric G protein expressed in taste receptor cells. This G-alpha subunit stimulates phosphodiesterase and decreases cAMP and cGMP levels. Further steps in the signaling cascade is still unknown. The beta-gamma-subunit of gustducin also mediates bitter taste transduction by activating phospholipase C, which leads to an increased formation of IP3 (inositol triphosphate) and DAG (diacylglycerol), thereby causing release of Ca2+ from intracellular stores and enhanced neurotransmitter release.


Pssm-ID: 320150  Cd Length: 292  Bit Score: 100.62  E-value: 1.88e-24
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  18 FLFLSAMEFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFLQGLLLLDAIQLACFQQMKDPlSHNYQAILT 97
Cdd:cd15022   3 FIILITGEFIIGILGNGYIALVNWIDWIKKKKISSIDYILTSLAISRICLISVIVVNGIVIVLYPDVYEN-DKLQIVIST 81
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  98 LWMIANQVSLWLAACLSLLYCSKIVRFSHTFPLhvasWVSRRfLQMLLVVLLLSCICTALCLWDFFCRSHSTVTSLLHL- 176
Cdd:cd15022  82 FWTFANYLSMWFATCLNVFYLLKIANFSHPLFL----WLKWR-IDRVVHWILLGCFAISLLVSLILAIVLSDDYRFHAIa 156
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 177 ----NSTEFSlQIAKLNFFYSFIFCNVGSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLISFF 252
Cdd:cd15022 157 khkrNITEMF-HVSKIQYFEPLTLFNLFAIVPFTVSLISFFLLIRSLWRHTKQMKLSATGGRDPSTEAHVRAIKTVTSFL 235
                       250       260       270       280       290
                ....*....|....*....|....*....|....*....|....*....|....
gi 47824876 253 CFYVVSFCAALISIPLLMLWHNKGGVMICIGMMAACPSGHAAILISGNAKLRRA 306
Cdd:cd15022 236 FFFFLYYLSSLLVTFSYLMTEYKLAMMFGEIVAILYPLGHSLILIIGNNKLRQA 289
7tm_TAS2R14-like cd15019
mammalian taste receptor 2, subtype 14, member of the seven-transmembrane G protein-coupled ...
18-306 4.38e-23

mammalian taste receptor 2, subtype 14, member of the seven-transmembrane G protein-coupled receptor superfamily; This group includes the mammalian taste receptor 2 (TAS2R) subtype 14, which functions as a bitter taste receptor. The human TAS2R family contains about 25 functional members, which are glycoproteins and have the ability to form both homomeric and heteromeric receptor complexes. Five basic tastes are perceived by animals: bitter, sweet, sour, salty, and umami (the taste of glutamate, MSG). Among these, sour and salty are mediated by ion channels, while the perception of umami and sweet tastes is mediated by the TAS1R taste receptors, which belong to the class C GPCR family. The TAS2Rs in humans have a short extracellular N-terminus and the ligand binds within the transmembrane domain, whereas the TAS1Rs have a large N-terminal extracellular domain composed of the Venus flytrap module that forms the orthosteric (primary) ligand binding site. Signal transduction of bitter taste involves binding of bitter compounds to TAS2Rs linked to the alpha-subunit of gustducin, a heterotrimeric G protein expressed in taste receptor cells. This G-alpha subunit stimulates phosphodiesterase and decreases cAMP and cGMP levels. Further steps in the signaling cascade is still unknown. The beta-gamma-subunit of gustducin also mediates bitter taste transduction by activating phospholipase C, which leads to an increased formation of IP3 (inositol triphosphate) and DAG (diacylglycerol), thereby causing release of Ca2+ from intracellular stores and enhanced neurotransmitter release.


Pssm-ID: 320147  Cd Length: 290  Bit Score: 96.83  E-value: 4.38e-23
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  18 FLFLSAMEFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRlflqglllldaIQLACFQQMKDPLSHNYQAILT 97
Cdd:cd15019   2 FTIILSVEFIIGNLGNGFIALVNCMDWVKRRKISSVDQILTALAISR-----------IGLLWLVFISWLISVLYPALLM 70
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  98 ----------LWMIANQVSLWLAACLSLLYCSKIVRFSHTFPLHVASWVSRRFLQMLLVVLLLSCICTALC-----LWDF 162
Cdd:cd15019  71 tekmlriiniSWTVTNHFSIWLATCLSIFYFLKIANFSNSIFLYLKWRVKKVVSVTLLVSLVLLFLNIVLInthidVWID 150
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 163 FCRSHSTVTSLLHlNSTEFSLQIAKLNFFYSFIFCNVgsvppSL-AFLVssgvLVISLGSHMRTMKSQTSSSGDPSLEAH 241
Cdd:cd15019 151 GYKRNMSYSSSSS-NSAQFSKLLLFTNTMFTFIPFTV-----SLtTFLL----LIFSLWKHLKKMQHNAKGSRDASTTAH 220
                       250       260       270       280       290       300
                ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 47824876 242 IRAIIFLISFFCFYVVSFCAALISIPLLMLWHNKGGVMICIGMMAACPSGHAAILISGNAKLRRA 306
Cdd:cd15019 221 IKALQTVIAFLLLYTIFFLSLLVQVWSSELLEKNLIILFCQVIGIAFPSGHSCVLILGNSKLRQA 285
7tm_TAS2R13 cd15026
mammalian taste receptor 2, subtype 13, member of the seven-transmembrane G protein-coupled ...
25-306 1.09e-22

mammalian taste receptor 2, subtype 13, member of the seven-transmembrane G protein-coupled receptor superfamily; This group includes the mammalian taste receptor 2 (TAS2R) subtype 13, which functions as a bitter taste receptor. The human TAS2R family contains about 25 functional members, which are glycoproteins and have the ability to form both homomeric and heteromeric receptor complexes. Five basic tastes are perceived by animals: bitter, sweet, sour, salty, and umami (the taste of glutamate, MSG). Among these, sour and salty are mediated by ion channels, while the perception of umami and sweet tastes is mediated by the TAS1R taste receptors, which belong to the class C GPCR family. The TAS2Rs in humans have a short extracellular N-terminus and the ligand binds within the transmembrane domain, whereas the TAS1Rs have a large N-terminal extracellular domain composed of the Venus flytrap module that forms the orthosteric (primary) ligand binding site. Signal transduction of bitter taste involves binding of bitter compounds to TAS2Rs linked to the alpha-subunit of gustducin, a heterotrimeric G protein expressed in taste receptor cells. This G-alpha subunit stimulates phosphodiesterase and decreases cAMP and cGMP levels. Further steps in the signaling cascade is still unknown. The beta-gamma-subunit of gustducin also mediates bitter taste transduction by activating phospholipase C, which leads to an increased formation of IP3 (inositol triphosphate) and DAG (diacylglycerol), thereby causing release of Ca2+ from intracellular stores and enhanced neurotransmitter release.


Pssm-ID: 320154  Cd Length: 287  Bit Score: 95.63  E-value: 1.09e-22
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  25 EFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFLQGLLlldaiqLACFQQMKDPLSH-----NYQAILTLW 99
Cdd:cd15026  10 EFIFGNLSNGFIVLINCIDWVKKRKLSSIDKILLILAISRIGLIWET------LVYWFKAQYYSSFfitgtELRIIVFSW 83
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 100 MIANQVSLWLAACLSLLYCSKIVRFSHTFPLHVASWVSRRFLQMLL---VVLLLSCICTALCLWDFFCRSHSTVTslLHL 176
Cdd:cd15026  84 ILSNHFSLWLATILSIFYLLKIANFSWPIFLYLKWRIKKVILMMLLgslVFLFLNLIQINIHIEDWFYQYERNTT--WNS 161
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 177 NSTEFSlQIAKLNFFYSFIFcnvgSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLISFFCFYV 256
Cdd:cd15026 162 MESDFA-KFSELVLFNMTMF----SVIPFTVALISFLLLIFSLWKHLQKMQLNSRGHRDPSTKAHRNALRIMVSFLLLYA 236
                       250       260       270       280       290
                ....*....|....*....|....*....|....*....|....*....|
gi 47824876 257 VSFCAALISIpLLMLWHNKGGVMICIGMMAACPSGHAAILISGNAKLRRA 306
Cdd:cd15026 237 SYFLSLLISW-IAQKHQSELAYIICIITGLFYPSSHSFILILGNSKLRQA 285
7tm_TAS2R43-like cd15027
mammalian taste receptor 2, subtype 43, and related proteins, member of the ...
25-306 2.10e-22

mammalian taste receptor 2, subtype 43, and related proteins, member of the seven-transmembrane G protein-coupled receptor superfamily; This group includes the mammalian taste receptor 2 (T2R) subtype 43, which functions as a bitter taste receptor. Also included are the closely related taste receptors TAS2R19, TAS2R20, TAS2R30, TAS2R31, TAS2R45 and TAS2R50. The human TAS2R family contains about 25 functional members, which are glycoproteins and have the ability to form both homomeric and heteromeric receptor complexes. Five basic tastes are perceived by animals: bitter, sweet, sour, salty, and umami (the taste of glutamate, MSG). Among these, sour and salty are mediated by ion channels, while the perception of umami and sweet tastes is mediated by the TAS1R taste receptors, which belong to the class C GPCR family. The TAS2Rs in humans have a short extracellular N-terminus and the ligand binds within the transmembrane domain, whereas the TAS1Rs have a large N-terminal extracellular domain composed of the Venus flytrap module that forms the orthosteric (primary) ligand binding site. Signal transduction of bitter taste involves binding of bitter compounds to TAS2Rs linked to the alpha-subunit of gustducin, a heterotrimeric G protein expressed in taste receptor cells. This G-alpha subunit stimulates phosphodiesterase and decreases cAMP and cGMP levels. Further steps in the signaling cascade is still unknown. The beta-gamma-subunit of gustducin also mediates bitter taste transduction by activating phospholipase C, which leads to an increased formation of IP3 (inositol triphosphate) and DAG (diacylglycerol), thereby causing release of Ca2+ from intracellular stores and enhanced neurotransmitter release.


Pssm-ID: 320155  Cd Length: 292  Bit Score: 94.95  E-value: 2.10e-22
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  25 EFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFLQGlllldAIQLACFQQMKDPLSHNYQAILTL---WMI 101
Cdd:cd15027  14 EFVLGNFANGFIALVNCIDWVKRQKISSVDQILTALAVSRIGLLW-----VILINWYATVFNPALYSLEVRIIIhiaWAV 88
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 102 ANQVSLWLAACLSLLYCSKIVRFSHTFPLHVASWVSRRFLQMLLVvlllscictalCLWDFFCrsHSTVTSLLHLNSTE- 180
Cdd:cd15027  89 TNHFSTWLATSLSIFYLLKIANFSNLIFLYLKRRVKSVILVILLG-----------SLVFLVF--HLAVVNIDENVWVNe 155
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 181 ----FSLQIAKLNFFY--SFIFCNVGSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLISFFCF 254
Cdd:cd15027 156 yegnVTWKTKLRDIIHlsNMTVFTLANFIPFTMSLISFLLLIFSLCKHLKKMQLHGKGSQDPSTKVHIKALQTVISFLLL 235
                       250       260       270       280       290
                ....*....|....*....|....*....|....*....|....*....|..
gi 47824876 255 YVVSFCAALISIPLLMLWHNKGGVMICIGMMAACPSGHAAILISGNAKLRRA 306
Cdd:cd15027 236 FAIYFLSLIISVWSSNRLQNKPVLLLCQAIGILYPSSHSFILIWGNKKLKQA 287
7tm_TAS2R40 cd15014
mammalian taste receptor 2, subtype 40, member of the seven-transmembrane G-protein coupled ...
19-306 2.29e-19

mammalian taste receptor 2, subtype 40, member of the seven-transmembrane G-protein coupled receptor superfamily; This group includes the mammalian taste receptor 2 (T2R) subtype 40, which functions as a bitter taste receptor. The human TAS2R family contains about 25 functional members, which are glycoproteins and have the ability to form both homomeric and heteromeric receptor complexes. Five basic tastes are perceived by animals: bitter, sweet, sour, salty, and umami (taste of glutamate MSG). Among these, sour and salty are mediated by ion channels, while the perception of umami and sweet tastes is mediated by the TAS1R taste receptors, which belong to the class C GPCR family. The TAS2Rs in humans have a short extracellular N-terminus and the ligand binds within the transmembrane domain, whereas the TAS1Rs have a large N-terminal extracellular domain composed of the Venus flytrap module that forms the orthosteric (primary) ligand binding site. Signal transduction of bitter taste involves binding of bitter compounds to TAS2Rs linked to the alpha-subunit of gustducin, a heterotrimeric G protein expressed in taste receptor cells. This G-alpha subunit stimulates phosphodiesterase and decreases cAMP and cGMP levels. Further steps in the signaling cascade is still unknown. The beta-gamma-subunit of gustducin also mediates bitter taste transduction by activating phospholipase C, which leads to an increased formation of IP3 (inositol triphosphate) and DAG (diacylglycerol), thereby causing release of Ca2+ from intracellular stores and enhanced neurotransmitter release.


Pssm-ID: 320142  Cd Length: 290  Bit Score: 86.53  E-value: 2.29e-19
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  19 LFLSAMEFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFLQGLLLLDAIQLACFqqmkdPLSHNYQAILTL 98
Cdd:cd15014   4 FVVSTIECIVGIIGNGFITVIYGTEWVRSKRLPTGERLMLMLSFSRLLLQIWMMVEITYSLLF-----PIIYNHNAMYKL 78
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  99 W----MIANQVSLWLAACLSLLYCSKIVRFSHTFPLHVASWVSRRFLQMLLVVLLLSCICTALCLWDFFCRSHSTVTSLL 174
Cdd:cd15014  79 FkvisVFLNYCNLWFAAWLNVFYCLKIVNFAHPLFLLMKQKIIVLMPRLLSLSVLVSLSLSSFFSKDIFNVYVNTSVPIP 158
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 175 HLNSTE----FSLQIAKLNFFYsfifcNVGSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLIS 250
Cdd:cd15014 159 SSNSTKmkyfFETNVLNLAFLY-----YMGIFVPLFMFIMAATLLITSLKRHTLHMESSTTGSRDSSMEAHIGAIKSTSY 233
                       250       260       270       280       290
                ....*....|....*....|....*....|....*....|....*....|....*.
gi 47824876 251 FFCFYVVSFCAALISIPLLMLWHNKGGVmICIGMMAACPSGHAAILISGNAKLRRA 306
Cdd:cd15014 234 SLILYIINALALFISMSNIFGAYSSWNS-LCKIIMTAYPAGQSVHLILRNPGLRRA 288
7tm_TAS2R41-like cd15018
mammalian taste receptor 2, subtype 41, member of the seven-transmembrane G protein-coupled ...
16-304 5.52e-19

mammalian taste receptor 2, subtype 41, member of the seven-transmembrane G protein-coupled receptor superfamily; This group includes the mammalian taste receptor 2 (TAS2R) subtype 41, which functions as a bitter taste receptor. Also included is the closely related TAS2R60. The human TAS2R family contains about 25 functional members, which are glycoproteins and have the ability to form both homomeric and heteromeric receptor complexes. Five basic tastes are perceived by animals: bitter, sweet, sour, salty, and umami (the taste of glutamate, MSG). Among these, sour and salty are mediated by ion channels, while the perception of umami and sweet tastes is mediated by the TAS1R taste receptors, which belong to the class C GPCR family. The TAS2Rs in humans have a short extracellular N-terminus and the ligand binds within the transmembrane domain, whereas the TAS1Rs have a large N-terminal extracellular domain composed of the Venus flytrap module that forms the orthosteric (primary) ligand binding site. Signal transduction of bitter taste involves binding of bitter compounds to TAS2Rs linked to the alpha-subunit of gustducin, a heterotrimeric G protein expressed in taste receptor cells. This G-alpha subunit stimulates phosphodiesterase and decreases cAMP and cGMP levels. Further steps in the signaling cascade is still unknown. The beta-gamma-subunit of gustducin also mediates bitter taste transduction by activating phospholipase C, which leads to an increased formation of IP3 (inositol triphosphate) and DAG (diacylglycerol), thereby causing release of Ca2+ from intracellular stores and enhanced neurotransmitter release.


Pssm-ID: 320146  Cd Length: 290  Bit Score: 85.54  E-value: 5.52e-19
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  16 ISFLFLSAMefaVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFLQGLLLLDAIQLAcFQQMKDPLSHNYQAI 95
Cdd:cd15018   4 VLILFLLCL---VAIVGNGFIVVALGREWLLRRTLLPCDKLLVSLGASRFCLQWVVMGKNIYVF-LHPVAFPYNPVLQFL 79
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  96 LTLWMIANQVSLWLAACLSLLYCSKIVRFSHTFPLHVASWVSRRFLQMLLVVLLLSCICTALCLWDFFCRSHSTVTSLLH 175
Cdd:cd15018  80 SFHWDFLNSATLWFCTWLSVFYCVKIATFTHPVFLWLKWRFSGWVPWLLLGSVGISSLTTILFFIGNHSIYQNYLRRGLS 159
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 176 LNSTEFSLqIAKLNFFYSFIFCNVGSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLISFFCFY 255
Cdd:cd15018 160 SNNTTYNW-RRSLEKFYFFSLKLITWSIPTSVFLISMVLLINSLRRHTKKMLHNLSSLQDPSTQAHIKALKALISFLILF 238
                       250       260       270       280       290
                ....*....|....*....|....*....|....*....|....*....|...
gi 47824876 256 VVSFCAALIS----IPLLMLWHNKGGVMICIgmmaaCPSGHAAILISGNAKLR 304
Cdd:cd15018 239 ASYFLSLVLSaagvFPSQEVRYWVWQIVIYL-----CIAVHPFILLFSNPKLR 286
7tm_TAS2R39 cd15015
mammalian taste receptor 2, subtype 39, member of the seven-transmembrane G protein-coupled ...
16-306 5.80e-16

mammalian taste receptor 2, subtype 39, member of the seven-transmembrane G protein-coupled receptor superfamily; This group includes the mammalian taste receptor 2 (T2R) subtype 39, which functions as a bitter taste receptor. The human TAS2R family contains about 25 functional members, which are glycoproteins and have the ability to form both homomeric and heteromeric receptor complexes. Five basic tastes are perceived by animals: bitter, sweet, sour, salty, and umami (taste of glutamate MSG). Among these, sour and salty are mediated by ion channels, while the perception of umami and sweet tastes is mediated by the TAS1R taste receptors, which belong to the class C GPCR family. The TAS2Rs in humans have a short extracellular N-terminus and the ligand binds within the transmembrane domain, whereas the TAS1Rs have a large N-terminal extracellular domain composed of the Venus flytrap module that forms the orthosteric (primary) ligand binding site. Signal transduction of bitter taste involves binding of bitter compounds to TAS2Rs linked to the alpha-subunit of gustducin, a heterotrimeric G protein expressed in taste receptor cells. This G-alpha subunit stimulates phosphodiesterase and decreases cAMP and cGMP levels. Further steps in the signaling cascade is still unknown. The beta-gamma-subunit of gustducin also mediates bitter taste transduction by activating phospholipase C, which leads to an increased formation of IP3 (inositol triphosphate) and DAG (diacylglycerol), thereby causing release of Ca2+ from intracellular stores and enhanced neurotransmitter release.


Pssm-ID: 320143  Cd Length: 289  Bit Score: 76.88  E-value: 5.80e-16
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  16 ISFLFLSAMEFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFLQGLLLLD-AIQLACFQQMKDPLshnYQA 94
Cdd:cd15015   1 ILILTLVATECTIGIIASGIIMAVNAVSWVQKKAVSITTRILLLLSVSRIGLQSIMLIEiTSSIFNLSFYNSVL---YRV 77
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  95 ILTLWMIANQVSLWLAACLSLLYCSKIVRFSHTFPLHVASWVSRRFLQMLLVVLLLSCICTAlclwdFFCRSHSTV--TS 172
Cdd:cd15015  78 SKVSFVFLNYCSLWFAALLSFFHFVKIANFSYPLFFKLKWRISELMPWLLWLSVFISFSSSM-----FFINHKTTVcnNS 152
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 173 LLHLNSTEFSLQ--IAKLNFFYSFIFCNVGSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLIS 250
Cdd:cd15015 153 SLSSNICNFTMKlyVSEINVVNVAFLFNLGILPPLTMFIATATLLIFSLRRHTLHMRNNATGSRNPSMEAHMQAIKETSC 232
                       250       260       270       280       290       300
                ....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 251 FFCFYVVSFCAALISIPLL----MLWHNkggvmICIGMMAACPSGHAAILISGNAKLRRA 306
Cdd:cd15015 233 FLFLYILNAAALFLSTSNIfdasLFWSN-----VCRIILPVYPAGHSVLLIQDNPGLRRT 287
7tm_TAS2R4 cd15013
mammalian taste receptor 2, subtype 4, member of the seven-transmembrane G protein-coupled ...
16-304 1.07e-15

mammalian taste receptor 2, subtype 4, member of the seven-transmembrane G protein-coupled receptor superfamily; This group includes the mammalian taste receptor 2 (TAS2R) subtype 4, which functions as a bitter taste receptor. The human TAS2R family contains about 25 functional members, which are glycoproteins and have the ability to form both homomeric and heteromeric receptor complexes. Five basic tastes are perceived by animals: bitter, sweet, sour, salty, and umami (the taste of glutamate, MSG). Among these, sour and salty are mediated by ion channels, while the perception of umami and sweet tastes is mediated by the TAS1R taste receptors, which belong to the class C GPCR family. The TAS2Rs in humans have a short extracellular N-terminus and the ligand binds within the transmembrane domain, whereas the TAS1Rs have a large N-terminal extracellular domain composed of the Venus flytrap module that forms the orthosteric (primary) ligand binding site. Signal transduction of bitter taste involves binding of bitter compounds to TAS2Rs linked to the alpha-subunit of gustducin, a heterotrimeric G protein expressed in taste receptor cells. This G-alpha subunit stimulates phosphodiesterase and decreases cAMP and cGMP levels. Further steps in the signaling cascade is still unknown. The beta-gamma-subunit of gustducin also mediates bitter taste transduction by activating phospholipase C, which leads to an increased formation of IP3 (inositol triphosphate) and DAG (diacylglycerol), thereby causing release of Ca2+ from intracellular stores and enhanced neurotransmitter release.


Pssm-ID: 320141  Cd Length: 286  Bit Score: 76.00  E-value: 1.07e-15
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  16 ISFLFLSAMEFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFLQGLLLLDAIQLACFQQMKDPLSHNYqaI 95
Cdd:cd15013   1 IFVFIASVVFNFVGIVANLFIIVVNCKTWVKSHRISSSDRILFSLAITRFLMLGLFLLNTIYIATFPGSRSVYFSTF--F 78
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  96 LTLWMIANQVSLWLAACLSLLYCSKIVRFSHTFPLHVASWVSRRFLQMLLVVLLLSCICTalCLWDFFCRSHSTVTSLLH 175
Cdd:cd15013  79 LLCWKFLDSNSLWFVTLLNILYCVKITNFQHSVFLLLKRNLSPKTPWLLLACLLISAFTT--LLYIVLSQISPFPEHIIG 156
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 176 LNSTEFSLQIAKLNFFYSFIfcnVGSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLISFFCFY 255
Cdd:cd15013 157 RNNTSFDISDGILTLVASLI---LSSSLQFILNVTSASLLIHSLRRHIQKMQKNATSFWNPQTEAHVGAMKLMIYFLILY 233
                       250       260       270       280
                ....*....|....*....|....*....|....*....|....*....
gi 47824876 256 VVSFCAALISIPLLMLWHNKGGVMICIGMMAACPSGHAAILISGNAKLR 304
Cdd:cd15013 234 IPYSIATLLYFLPSYMGKNLRAQSICMIFTTLYSPGHSVLIIITHPKLK 282
7tm_TAS2R16 cd15017
mammalian taste receptor 2, subtype 16, member of the seven-transmembrane G protein-coupled ...
18-306 3.44e-13

mammalian taste receptor 2, subtype 16, member of the seven-transmembrane G protein-coupled receptor superfamily; This group includes the mammalian taste receptor 2 (TAS2R) subtype 16, which functions as a bitter taste receptor. The human TAS2R family contains about 25 functional members, which are glycoproteins and have the ability to form both homomeric and heteromeric receptor complexes. Five basic tastes are perceived by animals: bitter, sweet, sour, salty, and umami (the taste of glutamate, MSG). Among these, sour and salty are mediated by ion channels, while the perception of umami and sweet tastes is mediated by the TAS1R taste receptors, which belong to the class C GPCR family. The TAS2Rs in humans have a short extracellular N-terminus and the ligand binds within the transmembrane domain, whereas the TAS1Rs have a large N-terminal extracellular domain composed of the Venus flytrap module that forms the orthosteric (primary) ligand binding site. Signal transduction of bitter taste involves binding of bitter compounds to TAS2Rs linked to the alpha-subunit of gustducin, a heterotrimeric G protein expressed in taste receptor cells. This G-alpha subunit stimulates phosphodiesterase and decreases cAMP and cGMP levels. Further steps in the signaling cascade is still unknown. The beta-gamma-subunit of gustducin also mediates bitter taste transduction by activating phospholipase C, which leads to an increased formation of IP3 (inositol triphosphate) and DAG (diacylglycerol), thereby causing release of Ca2+ from intracellular stores and enhanced neurotransmitter release.


Pssm-ID: 320145  Cd Length: 285  Bit Score: 68.86  E-value: 3.44e-13
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  18 FLFLSAMEFAVGILANAFIVLVNVWDVVKKQPLNNCDIALLCLSITRLFlqglllldaiqLACFQQMKDPLS---HNYQA 94
Cdd:cd15017   3 FMIIFVLESLAAIVQNGFIVTVLGREWVRCRRLPPGDMILACLGISRFC-----------LQWISILNNFLSyfdFNYVF 71
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876  95 IL--TLWMIANQVSLWLAACLSLLYCSKIVRFSHtfplHVASWVSRRFLQMLLVVLLLSCICTALCLWDFFCRSHSTVTS 172
Cdd:cd15017  72 WYfgIIWDFFNTLTFWLTSLLAVFYCVKISSFTH----PIFLWLKWRISRLVPWLLLGSLIISCLSIIPSIVGNYIQAQL 147
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 47824876 173 LLHLNSTEFSLQIAKLNFFYSFIFCN---VGSVPPSLAFLVSSGVLVISLGSHMRTMKSQTSSSGDPSLEAHIRAIIFLI 249
Cdd:cd15017 148 ITSGNSSGNSTLIYRLQAFQQYYFIPhqmVMLSIPFLLFLVSIILLMFSLCQHLGQMRHHSPGPCDPSTQAHTTALKSLA 227
                       250       260       270       280       290       300
                ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 47824876 250 SFFCFYVVSFCAALISIPLLML----WHNKGGVMICIGMmaacpSGHAAILISGNAKLRRA 306
Cdd:cd15017 228 FFLIFFTSYFLTLIISIIKIIFvknsWFWAWEAVIYAGI-----SIHSTSLMLSSPKLRKA 283
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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