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. 2023 Aug 30;10:1215889. doi: 10.3389/fnut.2023.1215889

Table 1.

Comparison between the bitter taste receptors of human, rat (human and mouse nomenclatures), and mouse structural orthologs.

Human Rat Mouse
Human nomenclature Mouse nomentature
TAS2R1 rTas2r1 rTas2r119 mTas2r119
TAS2R3 rTas2r37 rTas2r137 mTas2r137
TAS2R4 rTas2r16 rTas2r108 mTas2r108
TAS2R5 X X X
TAS2R7 rTas2r6 rTas2r130 mTas2r130
TAS2R8 X X X
TAS2R9 X X X
TAS2R10 rTas2r18 rTas2r104 mTas2r104
rTas2r9 rTas2r105 mTas2r105
rTas2r30 rTas2r106 mTas2r106
rTas2r4 rTas2r107 mTas2r107
rTas2r5 rTas2r114 mTas2r114
TAS2R13 rTas2r13 X
rTas2r8/rTas2r21 rTas2r102 mTas2r102
rTas2r7 rTas2r121 mTas2r121
rTas2r24 rTas2r124 mTas2r124
TAS2R14 rTas2r23 rTas2r103 mTas2r103
rTas2r26 rTas2r109 mTas2r109
rTas2r10 rTas2r110 mTas2r110
rTas2r31 rTas2r113 mTas2r113
X X mTas2r115
rTas2r32 rTas2r116 mTas2r116
rTas2rr17 rTas2r117 mTas2r117
rTas2r2 rTas2r123 mTas2r123
rTas2r25 rTas2r125 mTas2r125
rTas2r29 rTas2r129 mTas2r129
rTas2r40 rTas2r140 mTas2r140
TAS2R16 rTAS2R3 rTas2r118 mTas2r118
rTas2r34 rTas2r134 mTas2r134
rTas2r43 rTas2r143 mTas2r143
TAS2R19
TAS2R20/TAS2R49 rTas2r36 rTas2r136 mTas2r136
TAS2R30/TAS2R47 rTas2r20 rTas2r120 mTas2r120
TAS2R31/TAS2R44
TAS2R38 rTas2r38 rTas2r138 mTas2r138
TAS2R39 rTas2r39 rTas2r139 mTas2r139
TAS2R40 rTas2r44 rTas2r144 mTas2r144
TAS2R41 rTas2r12 rTas2r126 mTas2r126
TAS2R42 rTas2r13 rTas2r145 mTas2r131
TAS2R43 rTas2r136 and rTas2r120 mTas2r136 and mTas2r120
TAS2R45
TAS2R46
TAS2R50
TAS2R60 rTas2r35 rTas2r135 mTas2r135
X X mTas2r122
? rTas2r33* mTas2r133*
X mTas2r7 X

X means that there are no orthologs in the species; – means that the nomenclature is nonexistent; and ? means that no information exists on the presence of the ortholog in that species. Based on (4, 36, 37).