PDB
9JG1
Resolution
3.6 Å
Released
Dec. 3, 2025
Receptor
H4
Class
A
Species
Homo sapiens
Ligand
Function
adriforant
Antagonist
Reference
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Ligand Amino Acid Generic Number Segment Interaction Type
adriforant L91 3.29x29 TM3 hydrophobic
adriforant D94 3.32x32 TM3 polar (charge-charge)
adriforant Y95 3.33x33 TM3 hydrophobic
adriforant C98 3.36x36 TM3 Van der Waals
adriforant N147 4.57x57 TM4 Van der Waals
adriforant P166 45.52x52 ECL2 Van der Waals
adriforant E182 5.46x461 TM5 polar (charge-charge)
adriforant W523 6.48x48 TM6 Van der Waals
adriforant Y526 6.51x51 TM6 aromatic (pi-cation)
adriforant F551 7.39x38 TM7 Van der Waals
adriforant Q554 7.42x41 TM7 hydrophobic
adriforant W555 7.43x42 TM7 Van der Waals

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Snake plot — Download: PNG | SVG
ICL1 K N L R ICL1ECL1 F E W D F ECL1ICL2 A V S Y R T Q H T ICL2ECL2 D E G S E C E P G F F S ECL2ICL3 H P G L T A V S S N I C G H S F R G R L S S R R S L S A S T E V P A S F H S E R Q R R K S S L M F S S R T K M N S N T I A S K M G S F S Q S D S V A L H Q R E ICL3ECL3 S S A T G P K ECL3N-term M P D T N S T I N L N-termC-term K K Q P L P S Q H S R S V S S C-term S L S T R V T L A F F M S L V A F A I M L G N A L V I L A F V V D H R S S Y F F L N L A I S D F F V G V I S I P L Y I P H T L G K E I C V F W L T T D Y L L C T A S V Y N I V L I S Y D R Y L S V S N G V L K I V T L M V A V W V L A F L V N G P M I L V S E S W K E W Y I L A I T S F L E F V I P V I L V A Y F N M N I Y W S L W K R D H L S R C Q S H V E L L R A R R L A K S L A I L L G V F A V C W A P Y S L F T I V L S F Y S V W Y R I A F W L Q W F N S F V N P L L Y P L C H K R F L K F Q K A I F C I
Helix box plot — Download: PNG | SVG A N G L M I A F A V L S M F F A L T V R 1 L N L A I S D F F V G I V S I P L Y I P H 2 L V I N Y V S A T C L L Y D T T L W F V 3 I V T L M V A V W V L A F L V N G P M 4 N F Y A V L I V P I V F E L F S T I A L I 5 A I L L G V F A V C W A P Y S L F T I V 6 L P N V F S N F W Q L W F A I R Y W V 7

GPCRdb(A)
GPCRdb(A)
H4 receptor
TM3
3x29 3.29x29 L91
3x32 3.32x32 D94
3x33 3.33x33 Y95
3x36 3.36x36 C98
TM4
4x57 4.57x57 N147
ECL2
45x52 45.52x52 P166
TM5
5x461 5.46x461 E182
TM6
6x48 6.48x48 W316
6x51 6.51x51 Y319
TM7
7x38 7.39x38 F344
7x41 7.42x41 Q347
7x42 7.43x42 W348