+
Open data
-
Basic information
Entry | ![]() | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Title | Ulotaront(SEP-363856)-bound mTAAR1-Gs protein complex | |||||||||
![]() | ||||||||||
![]() |
| |||||||||
![]() | 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 / positive regulation of cAMP-mediated signaling / electron transport chain / 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 / positive regulation of cAMP-mediated signaling / electron transport chain / 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 / 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 / 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 / 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 / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / G alpha (q) signalling events / 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 / lysosomal membrane / GTPase activity / synapse / heme binding / protein-containing complex binding / signal transduction / extracellular exosome / membrane / plasma membrane / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.22 Å | |||||||||
![]() | Xu Z / Guo LL / Zhao C / Shen SY / Sun JP / Shao ZH | |||||||||
Funding support | ![]()
| |||||||||
![]() | ![]() 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 |
|
-
Structure visualization
Supplemental images |
---|
-
Downloads & links
-EMDB archive
Map data | ![]() | 32.3 MB | ![]() | |
---|---|---|---|---|
Header (meta data) | ![]() ![]() | 21.8 KB 21.8 KB | Display Display | ![]() |
Images | ![]() | 56.3 KB | ||
Filedesc metadata | ![]() | 6.9 KB | ||
Others | ![]() ![]() | 31.8 MB 31.8 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8jlkMC ![]() 8jljC ![]() 8jlnC ![]() 8jloC ![]() 8jlpC ![]() 8jlqC ![]() 8jlrC ![]() 8jsoC ![]() 8jspC M: atomic model generated by this map C: citing same article ( |
---|---|
Similar structure data | Similarity search - Function & homology ![]() |
-
Links
EMDB pages | ![]() ![]() |
---|---|
Related items in Molecule of the Month |
-
Map
File | ![]() | ||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Voxel size | X=Y=Z: 0.92 Å | ||||||||||||||||||||
Density |
| ||||||||||||||||||||
Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
|
-Supplemental data
-Half map: #1
File | emd_36400_half_map_1.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Projections & Slices |
| ||||||||||||
Density Histograms |
-Half map: #2
File | emd_36400_half_map_2.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Projections & Slices |
| ||||||||||||
Density Histograms |
-
Sample components
+Entire : hTAAR1-bound T1AM in complex with Gs heterotrimer
+Supramolecule #1: hTAAR1-bound T1AM in complex with Gs heterotrimer
+Supramolecule #2: Gs heterotrimer
+Supramolecule #3: scFV16
+Supramolecule #4: T1AM-bound hTAAR1
+Macromolecule #1: mGs
+Macromolecule #2: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
+Macromolecule #3: Soluble cytochrome b562,Trace amine-associated receptor 1
+Macromolecule #4: ScFv16
+Macromolecule #5: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
+Macromolecule #6: 1-[(7~{S})-5,7-dihydro-4~{H}-thieno[2,3-c]pyran-7-yl]-~{N}-methyl...
-Experimental details
-Structure determination
Method | cryo EM |
---|---|
![]() | single particle reconstruction |
Aggregation state | particle |
-
Sample preparation
Buffer | pH: 7.5 |
---|---|
Vitrification | Cryogen name: ETHANE |
-
Electron microscopy
Microscope | FEI TITAN KRIOS |
---|---|
Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 60.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 1.8 µm / Nominal defocus min: 1.0 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
-
Image processing
Startup model | Type of model: NONE |
---|---|
Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.22 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 418011 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |