PDB
9IBW
Resolution
3.2 Å
Released
June 24, 2026
Receptor
OPN1SW
Class
A
Species
Homo sapiens
Ligand
Function
all-trans-retinal
Inverse agonist
Reference
10.1126/SCIENCE.ADZ3624

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Ligand Amino Acid Generic Number Segment Interaction Type
all-trans-retinal E107 3.28x28 TM3 Van der Waals
all-trans-retinal G111 3.32x32 TM3 Van der Waals
all-trans-retinal T112 3.33x33 TM3 Van der Waals
all-trans-retinal G115 3.36x36 TM3 Van der Waals
all-trans-retinal S180 ECL2 Van der Waals
all-trans-retinal C181 45.50x50 ECL2 Van der Waals
all-trans-retinal P183 45.52x52 ECL2 hydrophobic
all-trans-retinal L201 5.42x43 TM5 hydrophobic
all-trans-retinal F202 5.43x44 TM5 hydrophobic
all-trans-retinal C205 5.46x461 TM5 hydrophobic
all-trans-retinal F206 5.47x47 TM5 hydrophobic
all-trans-retinal Y259 6.48x48 TM6 hydrophobic
all-trans-retinal Y262 6.51x51 TM6 hydrophobic
all-trans-retinal A263 6.52x52 TM6 hydrophobic
all-trans-retinal S286 7.39x38 TM7 Van der Waals
all-trans-retinal S289 7.42x41 TM7 Van der Waals
all-trans-retinal K290 7.43x42 TM7 covalent bond

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

GPCRdb(A)
GPCRdb(A)
OPN1SW
TM3
3x28 3.28x28 E107
3x32 3.32x32 G111
3x33 3.33x33 T112
3x36 3.36x36 G115
ECL2
45x50 45.50x50 C181
45x52 45.52x52 P183
TM5
5x43 5.42x43 L201
5x44 5.43x44 F202
5x461 5.46x461 C205
5x47 5.47x47 F206
TM6
6x48 6.48x48 Y259
6x51 6.51x51 Y262
6x52 6.52x52 A263
TM7
7x38 7.39x38 S286
7x41 7.42x41 S289
7x42 7.43x42 K290