PDB
9IZA
Resolution
3.1 Å
Released
April 2, 2025
Receptor
HCA2
Class
A
Species
Homo sapiens
Ligand
SCH 900271
Function
Agonist
Reference
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Ligand Amino Acid Generic Number Segment Interaction Type
SCH 900271 L83 2.60x60 TM2 hydrophobic
SCH 900271 W91 ECL1 hydrophobic
SCH 900271 W93 23.50x50 ECL1 hydrophobic
SCH 900271 L107 3.32x32 TM3 hydrophobic
SCH 900271 R111 3.36x36 TM3 polar (charge-assisted hydrogen bond)
SCH 900271 C177 45.50x50 ECL2 hydrophobic
SCH 900271 C177 45.50x50 ECL2 Van der Waals
SCH 900271 S178 45.51x51 ECL2 Van der Waals
SCH 900271 S179 45.52x52 ECL2 polar (hydrogen bond with backbone)
SCH 900271 S179 45.52x52 ECL2 polar (hydrogen bond)
SCH 900271 S179 45.52x52 ECL2 Van der Waals
SCH 900271 S179 45.52x52 ECL2 polar (hydrogen bond)
SCH 900271 F180 ECL2 Van der Waals
SCH 900271 F180 ECL2 hydrophobic
SCH 900271 H189 ECL2 Van der Waals
SCH 900271 F277 7.36x35 TM7 hydrophobic
SCH 900271 L280 7.39x38 TM7 hydrophobic
SCH 900271 L280 7.39x38 TM7 Van der Waals
SCH 900271 Y284 7.43x42 TM7 polar (hydrogen bond)
SCH 900271 Y284 7.43x42 TM7 polar (hydrogen bond)

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

GPCRdb(A)
GPCRdb(A)
HCA2 receptor
TM2
2x60 2.60x60 L83
ECL1
23x50 23.50x50 W93
TM3
3x32 3.32x32 L107
3x36 3.36x36 R111
ECL2
45x50 45.50x50 C177
45x51 45.51x51 S178
45x52 45.52x52 S179
TM7
7x35 7.36x35 F277
7x38 7.39x38 L280
7x42 7.43x42 Y284