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- PDB-8w8b: Cryo-EM structure of SEP-363856 bounded serotonin 1A (5-HT1A) rec... -
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Open data
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Basic information
Entry | Database: PDB / ID: 8w8b | ||||||
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Title | Cryo-EM structure of SEP-363856 bounded serotonin 1A (5-HT1A) receptor-Gi protein complex | ||||||
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![]() | MEMBRANE PROTEIN / 5-HT1A / SEP363856 / GPCR | ||||||
Function / homology | ![]() regulation of serotonin secretion / adenylate cyclase-inhibiting serotonin receptor signaling pathway / regulation of hormone secretion / regulation of behavior / Serotonin receptors / receptor-receptor interaction / serotonin receptor signaling pathway / regulation of dopamine metabolic process / serotonin metabolic process / serotonin binding ...regulation of serotonin secretion / adenylate cyclase-inhibiting serotonin receptor signaling pathway / regulation of hormone secretion / regulation of behavior / Serotonin receptors / receptor-receptor interaction / serotonin receptor signaling pathway / regulation of dopamine metabolic process / serotonin metabolic process / serotonin binding / G protein-coupled serotonin receptor activity / gamma-aminobutyric acid signaling pathway / exploration behavior / neurotransmitter receptor activity / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / regulation of vasoconstriction / behavioral fear response / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex / regulation of cAMP-mediated signaling / D2 dopamine receptor binding / G protein-coupled serotonin receptor binding / regulation of mitotic spindle organization / cellular response to forskolin / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / Regulation of insulin secretion / G protein-coupled receptor binding / electron transport chain / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine 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 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / response to peptide hormone / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / adenylate cyclase-activating dopamine receptor signaling pathway / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / GDP binding / G-protein beta-subunit binding / Inactivation, recovery and regulation of the phototransduction cascade / heterotrimeric G-protein complex / G alpha (12/13) signalling events / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / GTPase binding / retina development in camera-type eye / Ca2+ pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / cell cortex / midbody / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / G alpha (q) signalling events / chemical synaptic transmission / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / periplasmic space / electron transfer activity / iron ion binding / G protein-coupled receptor signaling pathway / cell division / lysosomal membrane / GTPase activity / centrosome / synapse / dendrite / heme binding / positive regulation of cell population proliferation / protein-containing complex binding / nucleolus / GTP binding / magnesium ion binding Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3 Å | ||||||
![]() | 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 | ![]()
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![]() | ![]() Title: 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: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 240.2 KB | Display | ![]() |
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PDB format | ![]() | 182.4 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 37351MC ![]() 8w87C ![]() 8w88C ![]() 8w89C ![]() 8w8aC 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
-Guanine nucleotide-binding protein ... , 3 types, 3 molecules ABG
#1: Protein | Mass: 40414.047 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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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.) ![]() ![]() ![]() |
#4: Protein | Mass: 7861.143 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-Antibody / Protein , 2 types, 2 molecules ER
#3: Antibody | Mass: 28668.922 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#5: Protein | Mass: 60408.512 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() Gene: cybC, HTR1A, ADRB2RL1, ADRBRL1 / Production host: ![]() ![]() |
-Non-polymers , 3 types, 7 molecules ![](data/chem/img/CLR.gif)
![](data/chem/img/PLM.gif)
![](data/chem/img/UJL.gif)
![](data/chem/img/PLM.gif)
![](data/chem/img/UJL.gif)
#6: Chemical | ChemComp-CLR / #7: Chemical | ChemComp-PLM / | #8: Chemical | ChemComp-UJL / | |
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-Details
Has ligand of interest | Y |
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-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: Cryo-EM structure of SEP-363856 bounded serotonin 1A (5-HT1A) receptor-Gi protein complex Type: COMPLEX / Entity ID: #1-#5 / Source: MULTIPLE SOURCES |
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Source (natural) | Organism: ![]() |
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: ![]() |
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: 3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 396934 / Symmetry type: POINT |