PDB
Resolution
2.3 Å
Released
May 20, 2026
Receptor
Class
A
Species
Homo sapiens
Ligands
theophylline
F132
Function
Antagonist
Unknown
Reference
—
theophylline F132

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Ligand Amino Acid Generic Number Segment Interaction Type
theophylline F168 45.52x52 ECL2 aromatic (face-to-face)
F132 A231 6.33x33 TM6 hydrophobic
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
F132 I292 8.47x47 H8 hydrophobic

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NGL is a WebGL based 3D viewer powered by MMTF.

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Snake plot — Download: PNG | SVG
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
Helix box plot — Download: PNG | SVG 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

GPCRdb(A)
GPCRdb(A)
A2A receptor
ECL2
45x52 45.52x52 F168
TM6
6x33 6.33x33 A231
6x51 6.51x51 L249
6x55 6.55x55 N253
TM7
7x38 7.39x38 I274
H8
8x47 8.47x47 I292