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Conserved domains on  [gi|1653961619|ref|NP_789787|]
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taste receptor type 2 member 38 [Homo sapiens]

Protein Classification

7tm_TAS2R38 domain-containing protein( domain architecture ID 11606655)

7tm_TAS2R38 domain-containing protein

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 ...
16-309 2.54e-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: 446.98  E-value: 2.54e-159
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  16 STFLFISVLEFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLFLHGLLFLSAIQLTHFQKLSEPLNHSYQAI 95
Cdd:cd15025     1 ITFLFLSVLEFAVGILANAFIVLVNFWDVVKRQPLNNCDIVLLCLSITRLFLQGLLFLDAIQLTHFQQMKDPLSHSYQAI 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  96 IMLWMIANQANLWLAACLSLLYCSKLIRFSHTFLICLASWVSRKISQMLLGIILCSCICTVLCVWCFFSRPHFTVTTVLF 175
Cdd:cd15025    81 IMLWMIANQVSLWLAACLSLLYCSKIARFSHTFLLCLASWVSRRIPQMLLGSLLFSCICTVLCVWDFFSRSHSTVTSSLH 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 176 MnNNTRLNWQIKDLNLFYSFLFCYLWSVPPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLVSFFCF 255
Cdd:cd15025   161 M-NNTELNLQIEKLNFFYSFLFCNVGSVPPFLLFLVSSGVLIISLGRHMRTMKAQTSGSRDPSLEAHIRALKSLVSFLCF 239
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|....
gi 1653961619 256 FVISSCAAFISVPLLILWRDKIGVMVCVGIMAACPSGHAAILISGNAKLRRAVM 309
Cdd:cd15025   240 YVVSFCAALISVPLLLLWHNKIGVMVCVGIMAACPSGHAAILISGNAKLRRVVK 293
 
Name Accession Description Interval E-value
7tm_TAS2R38 cd15025
mammalian taste receptor 2, subtype 38, member of the seven-transmembrane G protein-coupled ...
16-309 2.54e-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: 446.98  E-value: 2.54e-159
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  16 STFLFISVLEFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLFLHGLLFLSAIQLTHFQKLSEPLNHSYQAI 95
Cdd:cd15025     1 ITFLFLSVLEFAVGILANAFIVLVNFWDVVKRQPLNNCDIVLLCLSITRLFLQGLLFLDAIQLTHFQQMKDPLSHSYQAI 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  96 IMLWMIANQANLWLAACLSLLYCSKLIRFSHTFLICLASWVSRKISQMLLGIILCSCICTVLCVWCFFSRPHFTVTTVLF 175
Cdd:cd15025    81 IMLWMIANQVSLWLAACLSLLYCSKIARFSHTFLLCLASWVSRRIPQMLLGSLLFSCICTVLCVWDFFSRSHSTVTSSLH 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 176 MnNNTRLNWQIKDLNLFYSFLFCYLWSVPPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLVSFFCF 255
Cdd:cd15025   161 M-NNTELNLQIEKLNFFYSFLFCNVGSVPPFLLFLVSSGVLIISLGRHMRTMKAQTSGSRDPSLEAHIRALKSLVSFLCF 239
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|....
gi 1653961619 256 FVISSCAAFISVPLLILWRDKIGVMVCVGIMAACPSGHAAILISGNAKLRRAVM 309
Cdd:cd15025   240 YVVSFCAALISVPLLLLWHNKIGVMVCVGIMAACPSGHAAILISGNAKLRRVVK 293
TAS2R pfam05296
Taste receptor protein (TAS2R); This family consists of several forms of eukaryotic taste ...
16-314 2.69e-54

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: 179.78  E-value: 2.69e-54
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  16 STFLFISVLEFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLFLHGLLFLSAIQLTHFqkLSEPLNHSYQAI 95
Cdd:pfam05296   7 GIFLIVAVVEFLLGILGNGFIVLVNCIDWVKKRKLSSIDLILTSLAISRICLQWLILLDNFIIVFF--PNTYLSGKLLRI 84
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  96 IML-WMIANQANLWLAACLSLLYCSKLIRFSHTFLICLASWVSRKISQMLLGIILCSCICTVLCvwcFFSRPHFTVTTVL 174
Cdd:pfam05296  85 ISLfWTFLNHLSLWFATCLSVFYCLKIANFSHPIFLWLKWRISKVVPWLLLGSLLISFLNTVQI---PNSIKASIDPELI 161
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 175 FMNNNTRLNWQIKDLNLFYSFLFCYLWSVPPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLVSFFC 254
Cdd:pfam05296 162 KYKRNTTWDLRVSKFELFSSLVLLNLGSLLPFIVFLISFLLLIFSLWRHTRQMQLNSTGFRDPSTEAHVRALKSLISFLI 241
                         250       260       270       280       290       300
                  ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 255 FFVISSCAAFISVPLLILWRDKIGVMVCVGIMAACPSGHAAILISGNAKLRRAVMTILLW 314
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 ...
16-309 2.54e-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: 446.98  E-value: 2.54e-159
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  16 STFLFISVLEFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLFLHGLLFLSAIQLTHFQKLSEPLNHSYQAI 95
Cdd:cd15025     1 ITFLFLSVLEFAVGILANAFIVLVNFWDVVKRQPLNNCDIVLLCLSITRLFLQGLLFLDAIQLTHFQQMKDPLSHSYQAI 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  96 IMLWMIANQANLWLAACLSLLYCSKLIRFSHTFLICLASWVSRKISQMLLGIILCSCICTVLCVWCFFSRPHFTVTTVLF 175
Cdd:cd15025    81 IMLWMIANQVSLWLAACLSLLYCSKIARFSHTFLLCLASWVSRRIPQMLLGSLLFSCICTVLCVWDFFSRSHSTVTSSLH 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 176 MnNNTRLNWQIKDLNLFYSFLFCYLWSVPPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLVSFFCF 255
Cdd:cd15025   161 M-NNTELNLQIEKLNFFYSFLFCNVGSVPPFLLFLVSSGVLIISLGRHMRTMKAQTSGSRDPSLEAHIRALKSLVSFLCF 239
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|....
gi 1653961619 256 FVISSCAAFISVPLLILWRDKIGVMVCVGIMAACPSGHAAILISGNAKLRRAVM 309
Cdd:cd15025   240 YVVSFCAALISVPLLLLWHNKIGVMVCVGIMAACPSGHAAILISGNAKLRRVVK 293
7tm_TAS2R cd13950
mammalian taste receptors type 2, member of the seven-transmembrane G protein-coupled receptor ...
18-309 6.76e-89

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: 267.89  E-value: 6.76e-89
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  18 FLFISVLEFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLFLHGLLFLSAIQLTHFQKLsEPLNHSYQAIIM 97
Cdd:cd13950     2 FLIIIVGEFLIGILGNGFIVLVNCIDWIKSRKLSSIDFILTSLAISRIGLLWTIILNSILSVFYPDI-YLSGNVLRTLDI 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  98 LWMIANQANLWLAACLSLLYCSKLIRFSHTFLICLASWVSRKISQMLLGIILCSCICTVLCVWCFFSRPHFTVTtvlfMN 177
Cdd:cd13950    81 LWMFLNHSSLWFATCLSVFYCLKIANFSHPFFLWLKWRINRVVPWLLLGSLLISLLISLPIVWVIYSVYQNNSK----EE 156
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 178 NNTRLNWQIKDLNLFYSFLFCYLWSVPPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLVSFFCFFV 257
Cdd:cd13950   157 SNNTSKFQVKKTSYFYSFILLNLGSLIPFILSLISFFLLIFSLWRHTRQMQLNATGSRDPSTEAHIRAMKSMISFLILFI 236
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|..
gi 1653961619 258 ISSCAAFISVPLLILWRDKIGVMVCVGIMAACPSGHAAILISGNAKLRRAVM 309
Cdd:cd13950   237 IYFLALIITILSYSFLENKLAVLFCEVLMALYPSGHSFILILGNPKLKQAFL 288
TAS2R pfam05296
Taste receptor protein (TAS2R); This family consists of several forms of eukaryotic taste ...
16-314 2.69e-54

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: 179.78  E-value: 2.69e-54
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  16 STFLFISVLEFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLFLHGLLFLSAIQLTHFqkLSEPLNHSYQAI 95
Cdd:pfam05296   7 GIFLIVAVVEFLLGILGNGFIVLVNCIDWVKKRKLSSIDLILTSLAISRICLQWLILLDNFIIVFF--PNTYLSGKLLRI 84
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  96 IML-WMIANQANLWLAACLSLLYCSKLIRFSHTFLICLASWVSRKISQMLLGIILCSCICTVLCvwcFFSRPHFTVTTVL 174
Cdd:pfam05296  85 ISLfWTFLNHLSLWFATCLSVFYCLKIANFSHPIFLWLKWRISKVVPWLLLGSLLISFLNTVQI---PNSIKASIDPELI 161
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 175 FMNNNTRLNWQIKDLNLFYSFLFCYLWSVPPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLVSFFC 254
Cdd:pfam05296 162 KYKRNTTWDLRVSKFELFSSLVLLNLGSLLPFIVFLISFLLLIFSLWRHTRQMQLNSTGFRDPSTEAHVRALKSLISFLI 241
                         250       260       270       280       290       300
                  ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 255 FFVISSCAAFISVPLLILWRDKIGVMVCVGIMAACPSGHAAILISGNAKLRRAVMTILLW 314
Cdd:pfam05296 242 LYISYFLSFLISIISFLLPKNKLAFIFGEIVTYLYPSGHSFILILGNPKLKQAFLKILLK 301
7tm_TAS2R3 cd15020
mammalian taste receptor 2, subtype 3, member of the seven-transmembrane G protein-coupled ...
18-307 9.40e-45

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: 154.47  E-value: 9.40e-45
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  18 FLFISVLEFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLFLHGLLFLSAIQLTHFQKLSEpLNHSYQAIIM 97
Cdd:cd15020     3 FLVLTITEFILGIWVNGFIGLVNCIHWIKSKKISLSDFIITNLALSRIILLCIIITDSLLLVFYPHFHD-SGIIMQIIDI 81
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  98 LWMIANQANLWLAACLSLLYCSKLIRFSHTFLICLASWVSRKISQMLLGIILCSCICTVLCVWCFFSrpHFTVTTVLFMN 177
Cdd:cd15020    82 FWTFANHLSIWLVTCLSVFYCLKIANFSHPAFLWLKWRVSRVVVWILLGSVLFSFFSTAALIKKFKI--YSALRQMRLTE 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 178 NNTRLNwQIKDLNLFYSFLFCYLWSVPPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLVSFFCFFV 257
Cdd:cd15020   160 NCTEDI-RRKEIEYYVAHILGALWSVIPFIVSLISYLLLILSLRRHTQQMQHHTTGSRDPSTEAHVRATKIILSFLLLFI 238
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|
gi 1653961619 258 ISSCAAFISVPLLILWRDKIGVMVCVGIMAACPSGHAAILISGNAKLRRA 307
Cdd:cd15020   239 FYFVAFFIGSSSFFLPDTKLAIMIGELITAAYPSVHSFILILQNNKLKQA 288
7tm_TAS2R1 cd15016
mammalian taste receptor 2, subtype 1, member of the seven-transmembrane G protein-coupled ...
17-306 5.79e-42

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: 146.98  E-value: 5.79e-42
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  17 TFLFISVLEFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLFLHGLLFLSAIQLTHFQKLSEplnhsYQAII 96
Cdd:cd15016     2 IHLLFAVIQFLTGIFANGFIVVVNGIDLIKQRKMAPLDLLLSCLATSRICLQLFIFYLNLAVLSLIKFSV-----FAENF 76
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  97 MLWMIANQANLWLAACLSLLYCSKLIRFSHTFLiclaSWVSRKISQ----MLLGIILCSCICTVLCvwcffSRPHFTVTT 172
Cdd:cd15016    77 VIFMFVNELGLWFATWLGVFYCAKIATIAHPLF----LWLKMRISKlvpwLILGSLLYASITSVFH-----SKYTWPISQ 147
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 173 VLFMNNNTRLN-WQIKDLN-LFYSFLFCYLWsvPPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLV 250
Cdd:cd15016   148 KLLLSFFSSNAtTQIKEISaLQLSLLIFELS--LPLLIFLVAVLLLIFSLGRHTRQMRTTAAGTRDPSRSAHISALLSIL 225
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 1653961619 251 SFFCFFViSSCAAFISVPLLILWRDKIGVMVCVGIMAACPSGHAAILISGNAKLRR 306
Cdd:cd15016   226 SFLILYL-SHYMAAALLSSQIFQFGSLFFLFCILVIGAYPSGHSIILILGNPKLKQ 280
7tm_TAS2R40-like cd15908
taste receptor 2, subtypes 39 and 40, and similar receptors, member of the seven-transmembrane ...
19-307 2.56e-34

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: 127.19  E-value: 2.56e-34
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  19 LFISVLEFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLFLHGLLFLSAIqLTHFQKLSEPLNHSYQAIIML 98
Cdd:cd15908     3 LVILGIESIIGILGNGFIVAINLTEWVRSKRLSTSDRILIFLSLSRLCLQSWMMLENV-CSLFFPSFYNEDNVYKTFKVI 81
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  99 WMIANQANLWLAACLSLLYCSKLIRFSHTFLICLASWVSRKISQMLLGIILCSCICTVLCVWCFFSrpHFTVTTVLFMNN 178
Cdd:cd15908    82 FMFLNYSSLWFAAWLSVFYCVKIANFTHPLFLWLKWRITSLMPWLLILSVLISFSTSLPFSWDVYN--VYCNSSIPLPSS 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 179 NTRLNWQIKDLNLFYSFLFCYLWSVPPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLVSFFCFFVI 258
Cdd:cd15908   160 NSTKKKYIKETNLVNLIFLYNVGIFLPLIMFILSATLLILSLKRHTLQMQNNATGSRDPSMEAHMGAIKAISSFLILYIF 239
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|....*....
gi 1653961619 259 SSCAAFISVPlLILWRDKIGVMVCVGIMAACPSGHAAILISGNAKLRRA 307
Cdd:cd15908   240 NFVALILTLS-NIFDTNSTWNILCKIIMAAYPAGHSILLILGNPKLRRA 287
7tm_TAS2R7-like cd15023
mammalian taste receptor 2, subtypes 7 and 9, member of the seven-transmembrane G ...
16-307 1.44e-31

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: 119.88  E-value: 1.44e-31
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  16 STFLFISVLEFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLFLHGLLFLSAIQLTHFQKLSEPlNHSYQAI 95
Cdd:cd15023     1 TIYMILIAGELTIGIWGNGFIVLVNCIGWLKRRDIALIDIILISLAISRICLLCVISLDGFIMVLFPDTYGN-GKLMSII 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  96 IMLWMIANQANLWLAACLSLLYCSKLIRFSHTFLIclasWVSRKISQMLLGIILCSCICTVLCVWCFFSRPHFTVTTVLF 175
Cdd:cd15023    80 DVFWTFTNHSSIWFTSCLSIFYLLKIANISHPLFL----WLKWRINKVILAILLGSLVLSLIISVPKTENLWDDFRKCVK 155
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 176 MNNNTRLNWQIKDLNLFYSF--LFCYLWSVPPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLVSFF 253
Cdd:cd15023   156 TKHEENITLKFKVSKTQGASkqVFLNLGVLVPFILSLISFLLLLFSLVRHTKQMQLHATGFRDPSTEAHMRAIKAVIIFL 235
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|....
gi 1653961619 254 CFFVISSCAAFISVPLLILWRDKIGVMVCVGIMAACPSGHAAILISGNAKLRRA 307
Cdd:cd15023   236 LLLIVYYLAFLVATSSYLIPQGKLVVMFGEIITLIFPSSHSFILIMGNSKLREA 289
7tm_TAS2R43-like cd15027
mammalian taste receptor 2, subtype 43, and related proteins, member of the ...
17-312 3.84e-31

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: 118.83  E-value: 3.84e-31
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  17 TFLFISVL-EFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLflhGLLFlsAIQLTHFQKLSEPLNHSYQAI 95
Cdd:cd15027     5 IILSILVMaEFVLGNFANGFIALVNCIDWVKRQKISSVDQILTALAVSRI---GLLW--VILINWYATVFNPALYSLEVR 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  96 I---MLWMIANQANLWLAACLSLLYCSKLIRFSHTFLICLASWVSRKISQMLLGiilcsciCTVLCVwcffsrPHFTVTT 172
Cdd:cd15027    80 IiihIAWAVTNHFSTWLATSLSIFYLLKIANFSNLIFLYLKRRVKSVILVILLG-------SLVFLV------FHLAVVN 146
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 173 vlfMNNNTRLN-------WQIKDLNLFY--SFLFCYLWSVPPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHI 243
Cdd:cd15027   147 ---IDENVWVNeyegnvtWKTKLRDIIHlsNMTVFTLANFIPFTMSLISFLLLIFSLCKHLKKMQLHGKGSQDPSTKVHI 223
                         250       260       270       280       290       300
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1653961619 244 KALKSLVSFFCFFVISSCAAFISVPLLILWRDKIGVMVCVGIMAACPSGHAAILISGNAKLRRAVMTIL 312
Cdd:cd15027   224 KALQTVISFLLLFAIYFLSLIISVWSSNRLQNKPVLLLCQAIGILYPSSHSFILIWGNKKLKQAFLSFL 292
7tm_TAS2R42 cd15024
mammalian taste receptor 2, subtype 42, member of the seven-transmembrane G protein-coupled ...
17-309 1.45e-30

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: 117.05  E-value: 1.45e-30
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  17 TFLFISVLEFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLflhGLLFLSAIQLThFQKLSEPLNHSYQ--- 93
Cdd:cd15024     1 IFLILAIGEFIIGMLGNGFIGLVNCSDWVKNRKISLADCILTCLAISRI---GQLLVILFDSF-ILVLWPHLYGTYKlak 76
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  94 AIIMLWMIANQANLWLAACLSLLYCSKLIRFSHTFLIclasWVSRKISQMLLGIILCSCICTVLCVWCFFSRPHFTVTTV 173
Cdd:cd15024    77 VVSILWTLTNHLTTWFATCLSIFYFLKIANFSHPLFL----WLKWRISRVLLVLLLGSLFLLFFDFLLLETFSDFWLNIY 152
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 174 LFMNNNTRLNWQIKDLNLFYSFLFCYLWSVPPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLVSFF 253
Cdd:cd15024   153 TIDEGNLTLSSEESKTLYVKSLILFSLIYLIPFLLSLTSLLLLFLSLVRHTRNLQLNSLGSRDSSTEAHKRAMKMVMSFL 232
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 1653961619 254 CFFVIsSCAAFISVP--LLILWRDKIGVMVCVgIMAACPSGHAAILISGNAKLRRAVM 309
Cdd:cd15024   233 LLFII-HFFSIQLAGwiFFFLWKKQAILFVML-TSNIFPSGHSFILILGNSKLRQTAL 288
7tm_TAS2R14-like cd15019
mammalian taste receptor 2, subtype 14, member of the seven-transmembrane G protein-coupled ...
17-312 1.92e-30

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: 116.86  E-value: 1.92e-30
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  17 TFLFISVLEFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLFLHGLLFLSAIQLTHFQKLSEPLNhSYQAII 96
Cdd:cd15019     1 IFTIILSVEFIIGNLGNGFIALVNCMDWVKRRKISSVDQILTALAISRIGLLWLVFISWLISVLYPALLMTEK-MLRIIN 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  97 MLWMIANQANLWLAACLSLLYCSKLIRFSHTFLICLASWVSRKISQMLLG--IILCS---CICTVLCVWCFFSRPHFTVT 171
Cdd:cd15019    80 ISWTVTNHFSIWLATCLSIFYFLKIANFSNSIFLYLKWRVKKVVSVTLLVslVLLFLnivLINTHIDVWIDGYKRNMSYS 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 172 TVLfmNNNTRLNWQIKDLNLFYSFLfcylwsvpPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLVS 251
Cdd:cd15019   160 SSS--SNSAQFSKLLLFTNTMFTFI--------PFTVSLTTFLLLIFSLWKHLKKMQHNAKGSRDASTTAHIKALQTVIA 229
                         250       260       270       280       290       300
                  ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1653961619 252 FFCFFVISSCAAFISVpLLILWRDKIGV-MVCVGIMAACPSGHAAILISGNAKLRRAVMTIL 312
Cdd:cd15019   230 FLLLYTIFFLSLLVQV-WSSELLEKNLIiLFCQVIGIAFPSGHSCVLILGNSKLRQASLSVL 290
7tm_TAS2R8 cd15022
mammalian taste receptor 2, subtype 8, member of the seven-transmembrane G protein-coupled ...
16-307 9.23e-30

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: 114.88  E-value: 9.23e-30
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  16 STFLFISVLEFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLFLHGLLFLSAIQLTHFQKLSEPlNHSYQAI 95
Cdd:cd15022     1 NIFIILITGEFIIGILGNGYIALVNWIDWIKKKKISSIDYILTSLAISRICLISVIVVNGIVIVLYPDVYEN-DKLQIVI 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  96 IMLWMIANQANLWLAACLSLLYCSKLIRFSHTFLICLASWVSRKISQMLLGIILCSCICTVLCVwCFFSRPHFTVTTVLF 175
Cdd:cd15022    80 STFWTFANYLSMWFATCLNVFYLLKIANFSHPLFLWLKWRIDRVVHWILLGCFAISLLVSLILA-IVLSDDYRFHAIAKH 158
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 176 MNNNTRLnWQIKDLNLFYSFLFCYLWSVPPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLVSFFCF 255
Cdd:cd15022   159 KRNITEM-FHVSKIQYFEPLTLFNLFAIVPFTVSLISFFLLIRSLWRHTKQMKLSATGGRDPSTEAHVRAIKTVTSFLFF 237
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|..
gi 1653961619 256 FVISSCAAFISVPLLILWRDKIGVMVCVGIMAACPSGHAAILISGNAKLRRA 307
Cdd:cd15022   238 FFLYYLSSLLVTFSYLMTEYKLAMMFGEIVAILYPLGHSLILIIGNNKLRQA 289
7tm_TAS2R10 cd15021
mammalian taste receptor 2, subtype 10, member of the seven-transmembrane G protein-coupled ...
18-309 4.91e-27

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: 107.47  E-value: 4.91e-27
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  18 FLFISVLEFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLFLHGLLFLSAIQLTHFQKLSEPLNHsYQAIIM 97
Cdd:cd15021     3 LLFVVTSEAVLGVLGNGFIALVNCIDYARNKKLSKIGFILTGLAISRIFLIWIIILDAYVKLFSPHMLASGNL-IEYISY 81
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  98 LWMIANQANLWLAACLSLLYCSKLIRFSHtfliCLASWVSRKISQMLLGIILCscictVLCVWCF-FSRPHFTVTTVLFM 176
Cdd:cd15021    82 IWVIINHLSVWFATSLSIFYFLKIANFSH----YIFLWLKRRIDVVFIFLIGC-----LLISWLIsFPQVAKIINDIKMK 152
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 177 NNNTRLNWQIKDLNLFYSFLFCYLWSVPPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLVSFFCFF 256
Cdd:cd15021   153 YRNTSWQLHLEKSEFFINYVFTNLGVIFFFMVALITCFLLIISLWRHNRQMQSNVSGFRDLNTEAHVKAMKVLISFIILF 232
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|...
gi 1653961619 257 VISSCAAFISVPLLILWRDKIGVMVCVGIMAACPSGHAAILISGNAKLRRAVM 309
Cdd:cd15021   233 ILYFIGISIETLCFFLPENKLLFIFGLTTACMYPCCHSFILILANSQLKQASL 285
7tm_TAS2R16 cd15017
mammalian taste receptor 2, subtype 16, member of the seven-transmembrane G protein-coupled ...
18-307 9.21e-27

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: 106.61  E-value: 9.21e-27
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  18 FLFISVLEFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLFLHGLLFLSAIqLTHFqklseplNHSYQAII- 96
Cdd:cd15017     3 FMIIFVLESLAAIVQNGFIVTVLGREWVRCRRLPPGDMILACLGISRFCLQWISILNNF-LSYF-------DFNYVFWYf 74
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  97 -MLWMIANQANLWLAACLSLLYCSKLIRFSH-TFLiclasWVSRKISQMLLGIILCSCICTVLCVWCFFSRPHFT--VTT 172
Cdd:cd15017    75 gIIWDFFNTLTFWLTSLLAVFYCVKISSFTHpIFL-----WLKWRISRLVPWLLLGSLIISCLSIIPSIVGNYIQaqLIT 149
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 173 VLFMNNNTRLNWQIKDLNLFYSFLFCYLWSVPPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLVSF 252
Cdd:cd15017   150 SGNSSGNSTLIYRLQAFQQYYFIPHQMVMLSIPFLLFLVSIILLMFSLCQHLGQMRHHSPGPCDPSTQAHTTALKSLAFF 229
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|....*....
gi 1653961619 253 FCFFVISSCAAFISVPLLIL----WRdkigvMVCVGIMAACPSGHAAILISGNAKLRRA 307
Cdd:cd15017   230 LIFFTSYFLTLIISIIKIIFvknsWF-----WAWEAVIYAGISIHSTSLMLSSPKLRKA 283
7tm_TAS2R13 cd15026
mammalian taste receptor 2, subtype 13, member of the seven-transmembrane G protein-coupled ...
16-307 2.40e-26

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: 105.64  E-value: 2.40e-26
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  16 STFLFISVLEFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLFLHGLLFLSAIQLTHFQKLSePLNHSYQAI 95
Cdd:cd15026     1 NILTLIIIAEFIFGNLSNGFIVLINCIDWVKKRKLSSIDKILLILAISRIGLIWETLVYWFKAQYYSSFF-ITGTELRII 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  96 IMLWMIANQANLWLAACLSLLYCSKLIRFSHTFLICLaSWvsrKISQMLLGIILCSCictvlcVWCFFSRPHFTVTTVLF 175
Cdd:cd15026    80 VFSWILSNHFSLWLATILSIFYLLKIANFSWPIFLYL-KW---RIKKVILMMLLGSL------VFLFLNLIQINIHIEDW 149
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 176 MNN---NTRLNWQIKDLNLF-YSFLFCY-LWSVPPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLV 250
Cdd:cd15026   150 FYQyerNTTWNSMESDFAKFsELVLFNMtMFSVIPFTVALISFLLLIFSLWKHLQKMQLNSRGHRDPSTKAHRNALRIMV 229
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 1653961619 251 SFFCFFVISSCAAFISVpLLILWRDKIGVMVCVGIMAACPSGHAAILISGNAKLRRA 307
Cdd:cd15026   230 SFLLLYASYFLSLLISW-IAQKHQSELAYIICIITGLFYPSSHSFILILGNSKLRQA 285
7tm_TAS2R40 cd15014
mammalian taste receptor 2, subtype 40, member of the seven-transmembrane G-protein coupled ...
19-307 9.44e-25

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: 101.55  E-value: 9.44e-25
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  19 LFISVLEFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLFLHGLLFLSAIQLTHFQKLSEPlNHSYQAIIML 98
Cdd:cd15014     4 FVVSTIECIVGIIGNGFITVIYGTEWVRSKRLPTGERLMLMLSFSRLLLQIWMMVEITYSLLFPIIYNH-NAMYKLFKVI 82
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  99 WMIANQANLWLAACLSLLYCSKLIRFSHTFLICLaswvSRKISQMLLGIILCSCICTvLCVWCFFSRPHFTV---TTVLF 175
Cdd:cd15014    83 SVFLNYCNLWFAAWLNVFYCLKIVNFAHPLFLLM----KQKIIVLMPRLLSLSVLVS-LSLSSFFSKDIFNVyvnTSVPI 157
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 176 MNNNTRLNWQIKDLNLFYSFLFCYLWSVPPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLVSFFCF 255
Cdd:cd15014   158 PSSNSTKMKYFFETNVLNLAFLYYMGIFVPLFMFIMAATLLITSLKRHTLHMESSTTGSRDSSMEAHIGAIKSTSYSLIL 237
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|..
gi 1653961619 256 FVISSCAAFISVPlLILWRDKIGVMVCVGIMAACPSGHAAILISGNAKLRRA 307
Cdd:cd15014   238 YIINALALFISMS-NIFGAYSSWNSLCKIIMTAYPAGQSVHLILRNPGLRRA 288
7tm_TAS2R41-like cd15018
mammalian taste receptor 2, subtype 41, member of the seven-transmembrane G protein-coupled ...
16-305 6.26e-23

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: 96.33  E-value: 6.26e-23
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  16 STFLFISVLEFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLFLHGLLFLSAIQLThFQKLSEPLNHSYQAI 95
Cdd:cd15018     1 IFLVLILFLLCLVAIVGNGFIVVALGREWLLRRTLLPCDKLLVSLGASRFCLQWVVMGKNIYVF-LHPVAFPYNPVLQFL 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  96 IMLWMIANQANLWLAACLSLLYCSKLIRFSHTFLICLASWVSRKISQMLLGIILCSCICTVLCVWCFFSRPHFTVTTVLF 175
Cdd:cd15018    80 SFHWDFLNSATLWFCTWLSVFYCVKIATFTHPVFLWLKWRFSGWVPWLLLGSVGISSLTTILFFIGNHSIYQNYLRRGLS 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 176 MNNNTRlNWqIKDLNLFYSF-LFCYLWSVPpFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLVSFFC 254
Cdd:cd15018   160 SNNTTY-NW-RRSLEKFYFFsLKLITWSIP-TSVFLISMVLLINSLRRHTKKMLHNLSSLQDPSTQAHIKALKALISFLI 236
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 1653961619 255 FFVIS------SCAAFISVPLLILWRDKIGVMVCVGImaacpsgHAAILISGNAKLR 305
Cdd:cd15018   237 LFASYflslvlSAAGVFPSQEVRYWVWQIVIYLCIAV-------HPFILLFSNPKLR 286
7tm_TAS2R4 cd15013
mammalian taste receptor 2, subtype 4, member of the seven-transmembrane G protein-coupled ...
16-305 1.54e-18

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: 84.09  E-value: 1.54e-18
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  16 STFLFISVLEFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLFLHGLLFLSAIqlthFQKLSEPLNHSYQAI 95
Cdd:cd15013     1 IFVFIASVVFNFVGIVANLFIIVVNCKTWVKSHRISSSDRILFSLAITRFLMLGLFLLNTI----YIATFPGSRSVYFST 76
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  96 IML--WMIANQANLWLAACLSLLYCSKLIRFSHTFLICLASWVSRKISQMLLGIILCSCICTVLcvwCFFSRPHFTVTTV 173
Cdd:cd15013    77 FFLlcWKFLDSNSLWFVTLLNILYCVKITNFQHSVFLLLKRNLSPKTPWLLLACLLISAFTTLL---YIVLSQISPFPEH 153
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 174 LFMNNNTRLNWQIKDLNLFYSFLfcyLWSVPPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLVSFF 253
Cdd:cd15013   154 IIGRNNTSFDISDGILTLVASLI---LSSSLQFILNVTSASLLIHSLRRHIQKMQKNATSFWNPQTEAHVGAMKLMIYFL 230
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|..
gi 1653961619 254 CFFVISSCAAFISVPLLILWRDKIGVMVCVGIMAACPSGHAAILISGNAKLR 305
Cdd:cd15013   231 ILYIPYSIATLLYFLPSYMGKNLRAQSICMIFTTLYSPGHSVLIIITHPKLK 282
7tm_TAS2R39 cd15015
mammalian taste receptor 2, subtype 39, member of the seven-transmembrane G protein-coupled ...
25-307 1.96e-18

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: 83.81  E-value: 1.96e-18
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619  25 EFAVGFLTNAFVFLVNFWDVVKRQALSNSDCVLLCLSISRLFLHGLLFLS-AIQLTHFQKLSEPLnhsYQAIIMLWMIAN 103
Cdd:cd15015    10 ECTIGIIASGIIMAVNAVSWVQKKAVSITTRILLLLSVSRIGLQSIMLIEiTSSIFNLSFYNSVL---YRVSKVSFVFLN 86
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 104 QANLWLAACLSLLYCSKLIRFSHTFLICLASWVSRKISQMLLGIILCSCICTVlcvwcFFSRPHFTVTTVLFMNN---NT 180
Cdd:cd15015    87 YCSLWFAALLSFFHFVKIANFSYPLFFKLKWRISELMPWLLWLSVFISFSSSM-----FFINHKTTVCNNSSLSSnicNF 161
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1653961619 181 RLNWQIKDLNLFYSFLFCYLWSVPPFLLFLVSSGMLTVSLGRHMRTMKVYTRNSRDPSLEAHIKALKSLVSFFCFFVISS 260
Cdd:cd15015   162 TMKLYVSEINVVNVAFLFNLGILPPLTMFIATATLLIFSLRRHTLHMRNNATGSRNPSMEAHMQAIKETSCFLFLYILNA 241
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|.
gi 1653961619 261 CAAFIS----VPLLILWRDkigvmVCVGIMAACPSGHAAILISGNAKLRRA 307
Cdd:cd15015   242 AALFLStsniFDASLFWSN-----VCRIILPVYPAGHSVLLIQDNPGLRRT 287
 
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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