ISDA

Entry Detail

PDB ID:

8WC3

EMDB ID:

EMD-37429

Keywords:

MEMBRANE PROTEIN

Title:

Cryo-EM structure of the SEP363856-bound mTAAR1-Gs complex

Biological Source:

Source Organism:

Homo sapiens, Mus musculus, synthetic construct

Host Organism:

Spodoptera frugiperda

PDB Version:

Deposition Date:

2023-09-11

Release Date:

2023-12-27

Method Details:

Experimental Method:

ELECTRON MICROSCOPY

Resolution:

3.00 Å

Aggregation State:

PARTICLE

Reconstruction Method:

SINGLE PARTICLE

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
Chain IDs:A
Chain Length:362
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P63092 Pfam ID:PF00503

Protein Blast

Polymer Type:polypeptide(L)
Description:Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
Chain IDs:B
Chain Length:345
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P62873 Pfam ID:PF00400

Protein Blast

Polymer Type:polypeptide(L)
Description:Trace amine-associated receptor 1
Chain IDs:C (auth: R)
Chain Length:332
Number of Molecules:1
Biological Source:Mus musculus

UniProt ID:Q923Y8 Pfam ID:PF00001

Polymer Type:polypeptide(L)
Description:scFv16
Chain IDs:D (auth: S)
Chain Length:285
Number of Molecules:1
Biological Source:synthetic construct

Protein Blast

Polymer Type:polypeptide(L)
Description:Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
Chain IDs:E (auth: Y)
Chain Length:71
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P59768 Pfam ID:PF00631

Ligand Molecules

UJL

Primary Citation

Structural and signaling mechanisms of TAAR1 enabled preferential agonist design.

Shang, P, Rong, N, Jiang, J.J, Cheng, J, Zhang, M.H, Kang, D, Qi, L, Guo, L, Yang, G.M, Liu, Q, Zhou, Z, Li, X.B, Zhu, K.K, Meng, Q.B, Han, X, Yan, W, Kong, Y, Yang, L, Wang, X, Lei, D, Feng, X, Liu, X, Yu, X, Wang, Y, Li, Q, Shao, Z.H, Yang, F, Sun, J.P.Show

Cell 186 5347 5362.e24 (2023)

PMID: 37963465 DOI: 10.1016/j.cell.2023.10.014

Abstact

Trace amine-associated receptor 1 (TAAR1) senses a spectrum of endogenous amine-containing metabolites (EAMs) to mediate diverse psychological functions and is useful for schizophrenia treatment without the side effects of catalepsy. Here, we systematically profiled the signaling properties of TAAR1 activation and present nine structures of TAAR1-Gs/Gq in complex with EAMs, clinical drugs, and synthetic compounds. These structures not only revealed the primary amine recognition pocket (PARP) harboring the conserved acidic D3.32 for conserved amine recognition and "twin" toggle switch for receptor activation but also elucidated that targeting specific residues in the second binding pocket (SBP) allowed modulation of signaling preference. In addition to traditional drug-induced Gs signaling, Gq activation by EAM or synthetic compounds is beneficial to schizophrenia treatment. Our results provided a structural and signaling framework for molecular recognition by TAAR1, which afforded structural templates and signal clues for TAAR1-targeted candidate compounds design.

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