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Open data
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Basic information
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Title | Cryo-EM structure of the CHA-bound mTAAR1 complex | |||||||||
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![]() | CHA / mTAAR1 / MEMBRANE PROTEIN | |||||||||
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 / adenylate cyclase-activating dopamine receptor signaling pathway / G protein-coupled receptor signaling pathway / membrane / plasma membrane Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.04 Å | |||||||||
![]() | Rong NK / Guo LL / Zhang MH / Li Q / Yang F / Sun JP | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural and signaling mechanisms of TAAR1 enabled preferential agonist design. Authors: Pan Shang / Naikang Rong / Jing-Jing Jiang / Jie Cheng / Ming-Hui Zhang / Dongwei Kang / Lei Qi / Lulu Guo / Gong-Ming Yang / Qun Liu / Zhenzhen Zhou / Xiao-Bing Li / Kong-Kai Zhu / Qing- ...Authors: Pan Shang / Naikang Rong / Jing-Jing Jiang / Jie Cheng / Ming-Hui Zhang / Dongwei Kang / Lei Qi / Lulu Guo / Gong-Ming Yang / Qun Liu / Zhenzhen Zhou / Xiao-Bing Li / Kong-Kai Zhu / Qing-Biao Meng / Xiang Han / Wenqi Yan / Yalei Kong / Lejin Yang / Xiaohui Wang / Dapeng Lei / Xin Feng / Xinyong Liu / Xiao Yu / Yue Wang / Qian Li / Zhen-Hua Shao / Fan Yang / Jin-Peng Sun / ![]() Abstract: 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 ...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 D 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. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 987.6 KB | ![]() | |
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Header (meta data) | ![]() ![]() | 14.5 KB 14.5 KB | Display Display | ![]() |
Images | ![]() | 89.1 KB | ||
Filedesc metadata | ![]() | 5.5 KB | ||
Others | ![]() ![]() | 59.3 MB 59.3 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 590 KB | Display | ![]() |
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Full document | ![]() | 589.6 KB | Display | |
Data in XML | ![]() | 12.1 KB | Display | |
Data in CIF | ![]() | 14.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8wccMC ![]() 8wc3C ![]() 8wc4C ![]() 8wc5C ![]() 8wc6C ![]() 8wc7C ![]() 8wc8C ![]() 8wc9C ![]() 8wcaC ![]() 8wcbC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Voxel size | X=Y=Z: 0.92 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #1
File | emd_37438_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_37438_half_map_2.map | ||||||||||||
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Density Histograms |
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Sample components
-Entire : Cryo-EM structure of the CHA-bound mTAAR1 complex
Entire | Name: Cryo-EM structure of the CHA-bound mTAAR1 complex |
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Components |
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-Supramolecule #1: Cryo-EM structure of the CHA-bound mTAAR1 complex
Supramolecule | Name: Cryo-EM structure of the CHA-bound mTAAR1 complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #1: Trace amine-associated receptor 1
Macromolecule | Name: Trace amine-associated receptor 1 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 37.656586 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MHLCHAITNI SHRNSDWSRE VQASLYSLMS LIILATLVGN LIVIISISHF KQLHTPTNWL LHSMAIVDFL LGCLIMPCSM VRTVERCWY FGEILCKVHT STDIMLSSAS IFHLAFISID RYCAVCDPLR YKAKINISTI LVMILVSWSL PAVYAFGMIF L ELNLKGVE ...String: MHLCHAITNI SHRNSDWSRE VQASLYSLMS LIILATLVGN LIVIISISHF KQLHTPTNWL LHSMAIVDFL LGCLIMPCSM VRTVERCWY FGEILCKVHT STDIMLSSAS IFHLAFISID RYCAVCDPLR YKAKINISTI LVMILVSWSL PAVYAFGMIF L ELNLKGVE ELYRSQVSDL GGCSPFFSKV SGVLAFMTSF YIPGSVMLFV YYRIYFIAKG QARSINRTNV QVGLEGKSQA PQ SKETKAA KTLGIMVGVF LVCWCPFFLC TVLDPFLGYV IPPSLNDALY WFGYLNSALN PMVYAFFYPW FRRALKMVLL GKI FQKDSS RSKLFL UniProtKB: Trace amine-associated receptor 1 |
-Macromolecule #2: CYCLOHEXYLAMMONIUM ION
Macromolecule | Name: CYCLOHEXYLAMMONIUM ION / type: ligand / ID: 2 / Number of copies: 1 / Formula: HAI |
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Molecular weight | Theoretical: 100.182 Da |
Chemical component information | ![]() ChemComp-HAI: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.4 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 1.875 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: DIFFRACTION / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: OTHER |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.04 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 296951 |
Initial angle assignment | Type: ANGULAR RECONSTITUTION |
Final angle assignment | Type: ANGULAR RECONSTITUTION |