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Open data
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Basic information
Entry | Database: PDB / ID: 8jlk | ||||||
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Title | Ulotaront(SEP-363856)-bound mTAAR1-Gs protein complex | ||||||
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![]() | MEMBRANE PROTEIN/IMMUNE SYSTEM / Complex / Agonist / MEMBRANE PROTEIN / MEMBRANE PROTEIN-IMMUNE SYSTEM complex | ||||||
Function / homology | ![]() G protein-coupled amine receptor activity / Amine ligand-binding receptors / trace-amine receptor activity / G alpha (s) signalling events / electron transport chain / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors ...G protein-coupled amine receptor activity / Amine ligand-binding receptors / trace-amine receptor activity / G alpha (s) signalling events / electron transport chain / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / adenylate cyclase-activating dopamine receptor signaling pathway / GPER1 signaling / Inactivation, recovery and regulation of the phototransduction cascade / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / sensory perception of taste / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / GTPase binding / Ca2+ pathway / retina development in camera-type eye / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / fibroblast proliferation / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / Ras protein signal transduction / periplasmic space / electron transfer activity / Extra-nuclear estrogen signaling / cell population proliferation / G protein-coupled receptor signaling pathway / iron ion binding / lysosomal membrane / GTPase activity / synapse / heme binding / endoplasmic reticulum membrane / protein-containing complex binding / signal transduction / extracellular exosome / membrane / plasma membrane / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.22 Å | ||||||
![]() | Xu, Z. / Guo, L.L. / Zhao, C. / Shen, S.Y. / Sun, J.P. / Shao, Z.H. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Ligand recognition and G-protein coupling of trace amine receptor TAAR1. Authors: Zheng Xu / Lulu Guo / Jingjing Yu / Siyuan Shen / Chao Wu / Weifeng Zhang / Chang Zhao / Yue Deng / Xiaowen Tian / Yuying Feng / Hanlin Hou / Lantian Su / Hongshuang Wang / Shuo Guo / Heli ...Authors: Zheng Xu / Lulu Guo / Jingjing Yu / Siyuan Shen / Chao Wu / Weifeng Zhang / Chang Zhao / Yue Deng / Xiaowen Tian / Yuying Feng / Hanlin Hou / Lantian Su / Hongshuang Wang / Shuo Guo / Heli Wang / Kexin Wang / Peipei Chen / Jie Zhao / Xiaoyu Zhang / Xihao Yong / Lin Cheng / Lunxu Liu / Shengyong Yang / Fan Yang / Xiaohui Wang / Xiao Yu / Yunfei Xu / Jin-Peng Sun / Wei Yan / Zhenhua Shao / ![]() Abstract: Trace-amine-associated receptors (TAARs), a group of biogenic amine receptors, have essential roles in neurological and metabolic homeostasis. They recognize diverse endogenous trace amines and ...Trace-amine-associated receptors (TAARs), a group of biogenic amine receptors, have essential roles in neurological and metabolic homeostasis. They recognize diverse endogenous trace amines and subsequently activate a range of G-protein-subtype signalling pathways. Notably, TAAR1 has emerged as a promising therapeutic target for treating psychiatric disorders. However, the molecular mechanisms underlying its ability to recognize different ligands remain largely unclear. Here we present nine cryo-electron microscopy structures, with eight showing human and mouse TAAR1 in a complex with an array of ligands, including the endogenous 3-iodothyronamine, two antipsychotic agents, the psychoactive drug amphetamine and two identified catecholamine agonists, and one showing 5-HTR in a complex with an antipsychotic agent. These structures reveal a rigid consensus binding motif in TAAR1 that binds to endogenous trace amine stimuli and two extended binding pockets that accommodate diverse chemotypes. Combined with mutational analysis, functional assays and molecular dynamic simulations, we elucidate the structural basis of drug polypharmacology and identify the species-specific differences between human and mouse TAAR1. Our study provides insights into the mechanism of ligand recognition and G-protein selectivity by TAAR1, which may help in the discovery of ligands or therapeutic strategies for neurological and metabolic disorders. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 218.1 KB | Display | ![]() |
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PDB format | ![]() | 164.9 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 36400MC ![]() 8jljC ![]() 8jlnC ![]() 8jloC ![]() 8jlpC ![]() 8jlqC ![]() 8jlrC ![]() 8jsoC ![]() 8jspC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
-Protein , 2 types, 2 molecules AR
#1: Protein | Mass: 41879.465 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#3: Protein | Mass: 50420.719 Da / Num. of mol.: 1 / Mutation: M15W,H110I,R114L Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() Gene: cybC, Taar1 / Production host: ![]() ![]() |
-Guanine nucleotide-binding protein ... , 2 types, 2 molecules BY
#2: Protein | Mass: 39418.086 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#5: Protein | Mass: 7861.143 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-Antibody / Non-polymers , 2 types, 2 molecules S

#4: Antibody | Mass: 26709.748 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
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#6: Chemical | ChemComp-UJL / |
-Details
Has ligand of interest | Y |
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Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
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Source (recombinant) |
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Buffer solution | pH: 7.5 | ||||||||||||||||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 1800 nm / Nominal defocus min: 1000 nm / Cs: 2.7 mm |
Image recording | Electron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
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3D reconstruction | Resolution: 3.22 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 418011 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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