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- PDB-8wc7: Cryo-EM structure of the ZH8667-bound mTAAR1-Gs complex -

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Basic information

Entry
Database: PDB / ID: 8wc7
TitleCryo-EM structure of the ZH8667-bound mTAAR1-Gs complex
Components
  • (Guanine nucleotide-binding protein ...) x 3
  • Trace amine-associated receptor 1
  • scFv16
KeywordsMEMBRANE PROTEIN / ZH8667 / mTAAR1
Function / homology
Function and homology information


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 / G protein-coupled receptor activity / 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 / G protein-coupled receptor activity / 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 activation / G protein-coupled acetylcholine receptor signaling pathway / 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 / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / 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 / adenylate cyclase-activating dopamine receptor signaling pathway / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / sensory perception of taste / GPER1 signaling / G-protein beta-subunit binding / heterotrimeric G-protein complex / Inactivation, recovery and regulation of the phototransduction cascade / extracellular vesicle / G alpha (12/13) signalling events / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / retina development in camera-type eye / GTPase binding / 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 / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / protein-containing complex binding / signal transduction / extracellular exosome / membrane / plasma membrane / cytosol / cytoplasm
Similarity search - Function
Trace amine associated receptor 1 / Trace amine associated receptor family / Serpentine type 7TM GPCR chemoreceptor Srsx / G-protein, gamma subunit / G-protein gamma subunit domain profile. / GGL domain / G-protein gamma-like domain superfamily / G-protein gamma-like domain / GGL domain / G protein gamma subunit-like motifs ...Trace amine associated receptor 1 / Trace amine associated receptor family / Serpentine type 7TM GPCR chemoreceptor Srsx / G-protein, gamma subunit / G-protein gamma subunit domain profile. / GGL domain / G-protein gamma-like domain superfamily / G-protein gamma-like domain / GGL domain / G protein gamma subunit-like motifs / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / G-protein coupled receptors family 1 signature. / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family) / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily
Similarity search - Domain/homology
2-[4-(3-fluorophenyl)phenyl]ethanamine / Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Trace amine-associated receptor 1
Similarity search - Component
Biological speciesHomo sapiens (human)
Mus musculus (house mouse)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.1 Å
AuthorsRong, N.K. / Guo, L.L. / Zhang, M.H. / Li, Q. / Yang, F. / Sun, J.P.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)81773704 China
CitationJournal: Cell / Year: 2023
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
DepositionSep 11, 2023Deposition site: PDBJ / Processing site: PDBC
Revision 1.0Dec 27, 2023Provider: repository / Type: Initial release

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Structure visualization

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Assembly

Deposited unit
A: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
B: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
R: Trace amine-associated receptor 1
S: scFv16
Y: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)156,0226
Polymers155,8075
Non-polymers2151
Water0
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Guanine nucleotide-binding protein ... , 3 types, 3 molecules ABY

#1: Protein Guanine nucleotide-binding protein G(s) subunit alpha isoforms short


Mass: 42010.664 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Spodoptera frugiperda (fall armyworm)
#2: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


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: Spodoptera frugiperda (fall armyworm) / References: UniProt: P62873
#5: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / G gamma-I


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: Spodoptera frugiperda (fall armyworm) / References: UniProt: P59768

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Protein / Antibody / Non-polymers , 3 types, 3 molecules RS

#3: Protein Trace amine-associated receptor 1 / TaR-1 / Trace amine receptor 1


Mass: 37656.586 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Gene: Taar1, Ta1, Tar1, Trar1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q923Y8
#4: Antibody scFv16


Mass: 30363.043 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) synthetic construct (others) / Production host: Spodoptera frugiperda (fall armyworm)
#6: Chemical ChemComp-VMK / 2-[4-(3-fluorophenyl)phenyl]ethanamine


Mass: 215.266 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C14H14FN

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Details

Has ligand of interestY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Cryo-EM structure of the ZH8667-bound mTAAR1-Gs complex
Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: DIFFRACTION / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 1.875 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

CTF correctionType: NONE
3D reconstructionResolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 448155 / Symmetry type: POINT

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