PDB
8XQL
Resolution
3.0 Å
Released
July 10, 2024
Receptor
TAS2R14
Class
T2
Species
Homo sapiens
Ligands
Function
Cholesterol
Agonist
aristolochic acid (R:501)
Allosteric agonist
aristolochic acid (R:502)
Allosteric agonist
Reference
10.1038/S41586-024-07569-9
Cholesterol aristolochic acid (R:501) aristolochic acid (R:502)

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Ligand Amino Acid Generic Number Segment Interaction Type
Cholesterol I62 2.57x57 TM2 hydrophobic
Cholesterol S65 2.60x60 TM2 Van der Waals
Cholesterol F76 ECL1 hydrophobic
Cholesterol F82 3.25x25 TM3 hydrophobic
Cholesterol L85 3.28x28 TM3 hydrophobic
Cholesterol T86 3.29x29 TM3 Van der Waals
Cholesterol W89 3.32x32 TM3 hydrophobic
aristolochic acid (R:501) A100 3.43x43 TM3 Van der Waals
aristolochic acid (R:501) L103 3.46x46 TM3 Van der Waals
aristolochic acid (R:501) G104 3.47x47 TM3 Van der Waals
aristolochic acid (R:501) Y107 3.50x50 TM3 aromatic (edge-to-face)
aristolochic acid (R:501) Y107 3.50x50 TM3 hydrophobic
aristolochic acid (R:501) F108 3.51x51 TM3 Van der Waals
aristolochic acid (R:502) I111 3.54x54 TM3 hydrophobic
aristolochic acid (R:502) A112 3.55x55 TM3 Van der Waals
aristolochic acid (R:502) N113 ICL2 Van der Waals
Cholesterol F172 5.32x33 TM5 Van der Waals
Cholesterol S176 5.36x37 TM5 Van der Waals
Cholesterol I179 5.39x40 TM5 hydrophobic
Cholesterol V180 5.40x41 TM5 hydrophobic
Cholesterol S183 5.43x44 TM5 Van der Waals
Cholesterol T184 5.44x45 TM5 hydrophobic
Cholesterol I187 5.47x47 TM5 hydrophobic
aristolochic acid (R:501) S194 5.54x54 TM5 Van der Waals
aristolochic acid (R:501) M197 5.57x57 TM5 Van der Waals
aristolochic acid (R:501) F198 5.58x58 TM5 aromatic (edge-to-face)
aristolochic acid (R:501) F198 5.58x58 TM5 hydrophobic
aristolochic acid (R:502) L201 5.61x61 TM5 hydrophobic
aristolochic acid (R:501) L201 5.61x61 TM5 hydrophobic
aristolochic acid (R:502) S204 5.64x64 TM5 Van der Waals
aristolochic acid (R:502) M205 5.65x65 TM5 hydrophobic
aristolochic acid (R:502) H208 5.68x68 TM5 Van der Waals
aristolochic acid (R:502) R209 5.69x69 TM5 polar (charge-charge)
aristolochic acid (R:502) S223 6.28x28 TM6 Van der Waals
aristolochic acid (R:502) A226 6.31x31 TM6 hydrophobic
aristolochic acid (R:502) H227 6.32x32 TM6 Van der Waals
aristolochic acid (R:501) G229 6.34x34 TM6 Van der Waals
aristolochic acid (R:502) V230 6.35x35 TM6 Van der Waals
aristolochic acid (R:501) V230 6.35x35 TM6 Van der Waals
aristolochic acid (R:501) V233 6.38x38 TM6 hydrophobic
aristolochic acid (R:501) F237 6.42x42 TM6 Van der Waals
Cholesterol Y240 6.45x45 TM6 Van der Waals
Cholesterol S244 6.49x49 TM6 Van der Waals
Cholesterol F247 6.52x52 TM6 hydrophobic
Cholesterol I262 7.35x34 TM7 hydrophobic
Cholesterol S265 7.38x37 TM7 Van der Waals
Cholesterol M268 7.41x40 TM7 hydrophobic
Cholesterol G269 7.42x41 TM7 Van der Waals
aristolochic acid (R:501) H276 7.49x49 TM7 polar (hydrogen bond)
aristolochic acid (R:501) H276 7.49x49 TM7 polar (charge-charge)
aristolochic acid (R:501) V279 7.52x52 TM7 Van der Waals
aristolochic acid (R:501) L280 7.53x53 TM7 Van der Waals
aristolochic acid (R:501) G283 7.56x56 TM7 Van der Waals

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Snake plot — Download: PNG | SVG
ICL1 R K I ICL1ECL1 P A L F A ECL1ICL2 N F S N S I F L Y L K W ICL2ECL2 A S I N G Y R R N K T C S S D S S N F T R F S S L ECL2ICL3 K I S G D A S T K A ICL3ECL3 E E ECL3C-term G E P S G H K E F R E S S C-term M G G V I K S I F T F V L I V E F I I G N L G N S F I A L V N C I D W V K G S S V D R I L T A L A I S R I S L V W L I F G S W C V S V F F T E K M F R M L T N I W T V I N H F S V W L A T G L G T F Y F L K I A R V K K V V L V L L L V T S V F L F L N I A L I N I H I N I V L T S T V F I F I P F T L S L A M F L L L I F S M W K H R K K M Q H T V H R G V K S V I T F F L L Y A I F S L S F F I S V W T S E R L N L I I L S Q V M G M A Y P S C H S C V L I L G N K K S L S L R Y L R Q A V L L W M F K D
Helix box plot — Download: PNG | SVG S N G L N G I I F E V I L V F T F I S K 1 T A L A I S R I S L V W L I F G S W C V 2 G T A L W V S F H N I V T W I N T L M R 3 V L V L L L V T S V F L F L N I A L I N 4 F M A L S L T F P I F I F V T S T L V I 5 V I T F F L L Y A I F S L S F F I S V W 6 C S H C S P Y A M G M V Q S L I I L N 7

GPCRdb(A)
GPCRdb(A)
TAS2R14
TM2
2x57 2.57x57 I62
2x60 2.60x60 S65
TM3
3x25 3.25x25 F82
3x28 3.28x28 L85
3x29 3.29x29 T86
3x32 3.32x32 W89
3x43 3.43x43 A100
3x46 3.46x46 L103
3x47 3.47x47 G104
3x50 3.50x50 Y107
3x51 3.51x51 F108
3x54 3.54x54 I111
3x55 3.55x55 A112
TM5
5x40 5.39x40 I179
5x41 5.40x41 V180
5x44 5.43x44 S183
5x45 5.44x45 T184
5x47 5.47x47 I187
5x54 5.54x54 S194
5x57 5.57x57 M197
5x58 5.58x58 F198
5x61 5.61x61 L201
5x64 5.64x64 S204
5x65 5.65x65 M205
5x68 5.68x68 H208
5x69 5.69x69 R209
TM6
6x32 6.32x32 H227
6x34 6.34x34 G229
6x35 6.35x35 V230
6x38 6.38x38 V233
6x42 6.42x42 F237
6x45 6.45x45 Y240
6x49 6.49x49 S244
6x52 6.52x52 F247
TM7
7x34 7.35x34 I262
7x37 7.38x37 S265
7x40 7.41x40 M268
7x41 7.42x41 G269
7x49 7.49x49 H276
7x52 7.52x52 V279
7x53 7.53x53 L280
7x56 7.56x56 G283