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Open data
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Basic information
| Entry | Database: PDB / ID: 8w88 | ||||||
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| Title | Cryo-EM structure of the SEP363856-bound TAAR1-Gs complex | ||||||
Components |
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Keywords | MEMBRANE PROTEIN / TAAR1 / SEP-363856 / GPCR / antipsychotics | ||||||
| Function / homology | Function and homology informationAmine ligand-binding receptors / trace-amine receptor activity / adenylate cyclase-activating G protein-coupled bile acid receptor signaling pathway / adenylate cyclase-activating serotonin receptor signaling pathway / intracellular transport / regulation of skeletal muscle contraction / hair follicle placode formation / developmental growth / PKA activation in glucagon signalling / renal water homeostasis ...Amine ligand-binding receptors / trace-amine receptor activity / adenylate cyclase-activating G protein-coupled bile acid receptor signaling pathway / adenylate cyclase-activating serotonin receptor signaling pathway / intracellular transport / regulation of skeletal muscle contraction / hair follicle placode formation / developmental growth / PKA activation in glucagon signalling / renal water homeostasis / D1 dopamine receptor binding / vascular endothelial cell response to laminar fluid shear stress / Hedgehog 'off' state / activation of adenylate cyclase activity / adenylate cyclase-activating adrenergic receptor signaling pathway / cellular response to acidic pH / endomembrane system / ovarian follicle development / cellular response to glucagon stimulus / intracellular glucose homeostasis / adenylate cyclase activator activity / positive regulation of insulin secretion involved in cellular response to glucose stimulus / positive regulation of insulin secretion / trans-Golgi network membrane / negative regulation of inflammatory response to antigenic stimulus / response to prostaglandin E / bone development / platelet aggregation / cognition / G protein-coupled receptor activity / G-protein beta/gamma-subunit complex binding / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / Olfactory Signaling Pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / Activation of the phototransduction cascade / sensory perception of smell / G protein-coupled acetylcholine receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / Prostacyclin signalling through prostacyclin receptor / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / 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 / ADP signalling through P2Y purinoceptor 1 / cellular response to catecholamine stimulus / G beta:gamma signalling through PI3Kgamma / ADORA2B mediated anti-inflammatory cytokines production / adenylate cyclase-activating dopamine receptor signaling pathway / positive regulation of cold-induced thermogenesis / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / heterotrimeric G-protein complex / G alpha (12/13) signalling events / Inactivation, recovery and regulation of the phototransduction cascade / G-protein beta-subunit binding / extracellular vesicle / Thrombin signalling through proteinase activated receptors (PARs) / adenylate cyclase-activating G protein-coupled receptor signaling pathway / signaling receptor complex adaptor activity / GTPase binding / G protein activity / Ca2+ pathway / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / G alpha (i) signalling events / G alpha (s) signalling events / G alpha (q) signalling events / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / cytoplasmic side of plasma membrane / Ras protein signal transduction / Extra-nuclear estrogen signaling / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / GTP binding / endoplasmic reticulum membrane / synapse / protein-containing complex binding / signal transduction / extracellular exosome / membrane / plasma membrane / cytosol / cytoplasm Similarity search - Function | ||||||
| Biological species | Homo sapiens (human)![]() | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.6 Å | ||||||
Authors | Liu, H. / Zheng, Y. / Wang, Y. / Wang, Y. / He, X. / Xu, P. / Huang, S. / Yuan, Q. / Zhang, X. / Wang, S. ...Liu, H. / Zheng, Y. / Wang, Y. / Wang, Y. / He, X. / Xu, P. / Huang, S. / Yuan, Q. / Zhang, X. / Wang, S. / Xu, H.E. / Xu, F. | ||||||
| Funding support | China, 1items
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Citation | Journal: Nature / Year: 2023Title: Recognition of methamphetamine and other amines by trace amine receptor TAAR1. Authors: Heng Liu / You Zheng / Yue Wang / Yumeng Wang / Xinheng He / Peiyu Xu / Sijie Huang / Qingning Yuan / Xinyue Zhang / Ling Wang / Kexin Jiang / Hong Chen / Zhen Li / Wenbin Liu / Sheng Wang / ...Authors: Heng Liu / You Zheng / Yue Wang / Yumeng Wang / Xinheng He / Peiyu Xu / Sijie Huang / Qingning Yuan / Xinyue Zhang / Ling Wang / Kexin Jiang / Hong Chen / Zhen Li / Wenbin Liu / Sheng Wang / H Eric Xu / Fei Xu / ![]() 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 ...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) as well as methamphetamine, an abused substance that has posed a severe threat to human health and society. 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. 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-HTR (refs. ). 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. | ||||||
| History |
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8w88.cif.gz | 226.6 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8w88.ent.gz | 174.8 KB | Display | PDB format |
| PDBx/mmJSON format | 8w88.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/w8/8w88 ftp://data.pdbj.org/pub/pdb/validation_reports/w8/8w88 | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 37348MC ![]() 8w87C ![]() 8w89C ![]() 8w8aC ![]() 8w8bC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-Guanine nucleotide-binding protein ... , 3 types, 3 molecules ABG
| #1: Protein | Mass: 45755.547 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNAS, GNAS1, GSP / Production host: ![]() |
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| #2: Protein | Mass: 37915.496 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Production host: ![]() |
| #3: Protein | Mass: 7861.143 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNG2 / Production host: ![]() |
-Antibody / Protein , 2 types, 2 molecules NR
| #4: Antibody | Mass: 15271.938 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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| #5: Protein | Mass: 39130.645 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: TAAR1, TA1, TAR1, TRAR1 / Production host: ![]() |
-Non-polymers , 2 types, 4 molecules 


| #6: Chemical | | #7: Chemical | ChemComp-UJL / | |
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-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
| Component | Name: SEP363856-bound TAAR1-Gs complex / Type: COMPLEX / Entity ID: #1-#5 / Source: MULTIPLE SOURCES |
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| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 7.4 |
| 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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: DARK FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
| CTF correction | Type: NONE |
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| 3D reconstruction | Resolution: 2.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 664918 / Symmetry type: POINT |
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Homo sapiens (human)

China, 1items
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FIELD EMISSION GUN