Structure information

A2A receptor

PROTEIN CLASS

Class A (Rhodopsin)

PDB CODE

7INM

SPECIES

Homo sapiens

RESOLUTION

2.190

PREFERRED CHAIN

A

REFERENCE

10.1038/S42004-026-02059-7

PUBLICATION DATE

May 20, 2026

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Ligand Interaction Browser

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Ligand Amino Acid Generic Number Segment Interaction Type
Ligand Amino Acid Generic Number Segment Interaction Type
5-(trifluoromethyl)pyridin-2-one N42 2.40x40 TM2 Van der Waals
5-(trifluoromethyl)pyridin-2-one N42 2.40x40 TM2 polar (hydrogen bond)
theophylline F168 45.52x52 ECL2 aromatic (face-to-face)
5-(trifluoromethyl)pyridin-2-one A231 6.33x33 TM6 hydrophobic
5-(trifluoromethyl)pyridin-2-one A231 6.33x33 TM6 Van der Waals
5-(trifluoromethyl)pyridin-2-one S234 6.36x36 TM6 Van der Waals
5-(trifluoromethyl)pyridin-2-one A235 6.37x37 TM6 Van der Waals
theophylline L249 6.51x51 TM6 hydrophobic
theophylline N253 6.55x55 TM6 polar (hydrogen bond)
theophylline N253 6.55x55 TM6 polar (hydrogen bond)
theophylline I274 7.39x38 TM7 Van der Waals
theophylline I274 7.39x38 TM7 hydrophobic
5-(trifluoromethyl)pyridin-2-one I292 8.47x47 H8 Van der Waals
5-(trifluoromethyl)pyridin-2-one I292 8.47x47 H8 hydrophobic

Ligands

5-(trifluoromethyl)pyridin-2-one

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theophylline

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Residue Diagrams

V N G L I A L V A I A L E V T I Y V S S 1 V S L A A A D I A V G L V A I P F A I T I 2 A L L S F I S S Q T L V L V F C A I F L 3 A K G I I A I C W V L S F A I G L T P M 4 Y V G L M L L L P V L V C A F F N F Y V M Y 5 A I I V G L F A L C W L P L H I I N C F 6 F P N V V S N T H S L V I A L Y M L W 7
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ICL1 S N L Q ICL1ECL1 F C A ECL1ICL2 P L R Y N G L V ICL2ECL2 W N N C G Q P K E G K N H S Q G C G E G Q V A C L F E D V V ECL2ICL3 Q P L P G ICL3ECL3 P D C S H A ECL3C-term K A A G T S A R V L A A H G S D G E Q V S L R L N G H P P G V W A N G S A P H P E R R P N G Y A L G L V S G G S A Q E S Q G N T G L P D V E L L S H E L K G V C P E P P G L D D P L A Q D G A G V S C-term M P I M G S S V Y I T V E L A I A V L A I L G N V L V C W A V W L N N V T N Y F V V S L A A A D I A V G V L A I P F A I T I S T G A C H G C L F I A C F V L V L T Q S S I F S L L A I A I D R Y I A I R I T G T R A K G I I A I C W V L S F A I G L T P M L G P M N Y M V Y F N F F A C V L V P L L L M L G V Y L R I F L A A R R Q L K Q M E S E R A R S T L Q K E V H A A K S L A I I V G L F A L C W L P L H I I N C F T F F C P L W L M Y L A I V L S H T N S V V N P F I Y A Y R I R E F R K H V L P F F R Q T I I R S R Q Q E
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Residue Table


GPCRdb(A)
GPCRdb(A)
A2A receptor
TM2
2x40 2.40x40 N42
ECL2
45x52 45.52x52 F168
TM6
6x33 6.33x33 A231
6x36 6.36x36 S234
6x37 6.37x37 L235
6x51 6.51x51 L249
6x55 6.55x55 N253
TM7
7x38 7.39x38 I274
H8
8x47 8.47x47 I292