PDB
9M3Q
Resolution
2.7 Å
Released
March 11, 2026
Receptor
taar13c
Class
A
Species
Danio rerio
Ligand
SPERMIDINE
Function
Agonist
Reference
—

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Ligand Amino Acid Generic Number Segment Interaction Type
SPERMIDINE D112 3.32x32 TM3 polar (charge-assisted hydrogen bond)
SPERMIDINE L113 3.33x33 TM3 hydrophobic
SPERMIDINE L113 3.33x33 TM3 Van der Waals
SPERMIDINE T116 3.36x36 TM3 Van der Waals
SPERMIDINE D202 5.42x43 TM5 polar (charge-assisted hydrogen bond)
SPERMIDINE T206 5.46x461 TM5 polar (hydrogen bond)
SPERMIDINE T206 5.46x461 TM5 Van der Waals
SPERMIDINE F272 6.51x51 TM6 Van der Waals
SPERMIDINE F272 6.51x51 TM6 hydrophobic
SPERMIDINE F273 6.52x52 TM6 Van der Waals
SPERMIDINE D292 7.36x35 TM7 polar (charge-assisted hydrogen bond)
SPERMIDINE G295 7.39x38 TM7 Van der Waals
SPERMIDINE Y299 7.43x42 TM7 Van der Waals

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

GPCRdb(A)
GPCRdb(A)
taar13c
TM3
3x32 3.32x32 D112
3x33 3.33x33 L113
3x36 3.36x36 T116
TM5
5x43 5.42x43 D202
5x461 5.46x461 T206
TM6
6x51 6.51x51 F272
6x52 6.52x52 F273
TM7
7x35 7.36x35 D292
7x38 7.39x38 G295
7x42 7.43x42 Y299