8W89

Cryo-EM structure of the PEA-bound TAAR1-Gs complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.00 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


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Literature

Recognition of methamphetamine and other amines by trace amine receptor TAAR1.

Liu, H.Zheng, Y.Wang, Y.Wang, Y.He, X.Xu, P.Huang, S.Yuan, Q.Zhang, X.Wang, L.Jiang, K.Chen, H.Li, Z.Liu, W.Wang, S.Xu, H.E.Xu, F.

(2023) Nature 624: 663-671

  • DOI: https://doi.org/10.1038/s41586-023-06775-1
  • Primary Citation of Related Structures:  
    8W87, 8W88, 8W89, 8W8A, 8W8B

  • PubMed Abstract: 

    Trace amine-associated receptor 1 (TAAR1), the founding member of a nine-member family of trace amine receptors, is responsible for recognizing a range of biogenic amines in the brain, including the endogenous β-phenylethylamine (β-PEA) 1 as well as methamphetamine 2 , an abused substance that has posed a severe threat to human health and society 3 . Given its unique physiological role in the brain, TAAR1 is also an emerging target for a range of neurological disorders including schizophrenia, depression and drug addiction 2,4,5 . Here we report structures of human TAAR1-G-protein complexes bound to methamphetamine and β-PEA as well as complexes bound to RO5256390, a TAAR1-selective agonist, and SEP-363856, a clinical-stage dual agonist for TAAR1 and serotonin receptor 5-HT 1A R (refs. 6,7 ). Together with systematic mutagenesis and functional studies, the structures reveal the molecular basis of methamphetamine recognition and underlying mechanisms of ligand selectivity and polypharmacology between TAAR1 and other monoamine receptors. We identify a lid-like extracellular loop 2 helix/loop structure and a hydrogen-bonding network in the ligand-binding pockets, which may contribute to the ligand recognition in TAAR1. These findings shed light on the ligand recognition mode and activation mechanism for TAAR1 and should guide the development of next-generation therapeutics for drug addiction and various neurological disorders.


  • Organizational Affiliation

    The State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(s) subunit alpha isoforms short246Homo sapiensMutation(s): 0 
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P04899 (Homo sapiens)
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PHAROS:  P04899
GTEx:  ENSG00000114353 
Find proteins for P63092 (Homo sapiens)
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PHAROS:  P63092
GTEx:  ENSG00000087460 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsP63092P04899
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1345Homo sapiensMutation(s): 0 
Gene Names: GNB1
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Find proteins for P62873 (Homo sapiens)
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PHAROS:  P62873
GTEx:  ENSG00000078369 
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UniProt GroupP62873
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2C [auth G]71Homo sapiensMutation(s): 0 
Gene Names: GNG2
Membrane Entity: Yes 
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PHAROS:  P59768
GTEx:  ENSG00000186469 
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UniProt GroupP59768
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Nanobody35D [auth N]139Lama glamaMutation(s): 0 
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
Trace amine-associated receptor 1E [auth R]339Homo sapiensMutation(s): 0 
Gene Names: TAAR1TA1TAR1TRAR1
Membrane Entity: Yes 
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Find proteins for Q96RJ0 (Homo sapiens)
Explore Q96RJ0 
Go to UniProtKB:  Q96RJ0
PHAROS:  Q96RJ0
GTEx:  ENSG00000146399 
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UniProt GroupQ96RJ0
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
PEA (Subject of Investigation/LOI)
Query on PEA

Download Ideal Coordinates CCD File 
F [auth R]2-PHENYLETHYLAMINE
C8 H12 N
BHHGXPLMPWCGHP-UHFFFAOYSA-O
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.00 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of China (NSFC)China--

Revision History  (Full details and data files)

  • Version 1.0: 2023-11-22
    Type: Initial release
  • Version 1.1: 2024-01-03
    Changes: Database references