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- PDB-9jkq: Cryo-EM structure of the METH-bound hTAAR1-Gs complex -

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Basic information

Entry
Database: PDB / ID: 9jkq
TitleCryo-EM structure of the METH-bound hTAAR1-Gs complex
Components
  • (Guanine nucleotide-binding protein ...) x 3
  • Nb35
  • Soluble cytochrome b562,Trace amine-associated receptor 1
KeywordsSIGNALING PROTEIN / cryo-EM / GPCR / Trace amine-associated receptor 1
Function / homology
Function and homology information


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 ...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 / electron transport chain / 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 / electron transfer activity / periplasmic space / Extra-nuclear estrogen signaling / iron ion binding / G protein-coupled receptor signaling pathway / lysosomal membrane / heme binding / GTPase activity / GTP binding / endoplasmic reticulum membrane / synapse / protein-containing complex binding / signal transduction / extracellular exosome / membrane / plasma membrane
Similarity search - Function
Trace amine associated receptor 1 / Trace amine associated receptor family / : / G-protein alpha subunit, group S / Cytochrome b562 / Cytochrome b562 / Cytochrome c/b562 / Serpentine type 7TM GPCR chemoreceptor Srsx / G protein alpha subunit, helical insertion / G protein alpha subunit ...Trace amine associated receptor 1 / Trace amine associated receptor family / : / G-protein alpha subunit, group S / Cytochrome b562 / Cytochrome b562 / Cytochrome c/b562 / Serpentine type 7TM GPCR chemoreceptor Srsx / G protein alpha subunit, helical insertion / G protein alpha subunit / Guanine nucleotide binding protein (G-protein), alpha subunit / G-protein alpha subunit / G-alpha domain profile. / G-protein, gamma subunit / G-protein gamma subunit domain profile. / G-protein gamma-like domain / G-protein gamma-like domain superfamily / GGL domain / G protein gamma subunit-like motifs / GGL domain / Guanine nucleotide-binding protein, beta subunit / G protein beta WD-40 repeat protein / G-protein, beta subunit / G-protein coupled receptors family 1 signature. / 7 transmembrane receptor (rhodopsin family) / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
(2S)-N-methyl-1-phenylpropan-2-amine / Soluble cytochrome b562 / 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 / Guanine nucleotide-binding protein G(s) subunit alpha isoforms short / Trace amine-associated receptor 1
Similarity search - Component
Biological speciesHomo sapiens (human)
Escherichia coli (E. coli)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.66 Å
AuthorsLin, Y. / Wang, J. / Shi, F.
Funding support China, 7items
OrganizationGrant numberCountry
Ministry of Science and Technology (MoST, China)2020YFA0908500 China
Ministry of Science and Technology (MoST, China)2020YFA0908400 China
Ministry of Science and Technology (MoST, China)2018YFA0508100 China
National Natural Science Foundation of China (NSFC)31971127 China
National Natural Science Foundation of China (NSFC)31900895 China
National Natural Science Foundation of China (NSFC)32000851 China
National Natural Science Foundation of China (NSFC)31900930 China
CitationJournal: J Med Chem / Year: 2024
Title: Molecular Mechanisms of Methamphetamine-Induced Addiction via TAAR1 Activation.
Authors: Yun Lin / Jiening Wang / Fan Shi / Linlin Yang / Shan Wu / Anna Qiao / Sheng Ye /
Abstract: Trace amine-associated receptor 1 (TAAR1), a member of the trace amine receptor family, recognizes various trace amines in the brain, including endogenous β-phenylethylamine (PEA) and ...Trace amine-associated receptor 1 (TAAR1), a member of the trace amine receptor family, recognizes various trace amines in the brain, including endogenous β-phenylethylamine (PEA) and methamphetamine (METH). TAAR1 is a novel target for several neurological disorders, including schizophrenia, depression, and substance abuse. Herein, we report the structure of the human TAAR1-G protein complex bound to METH. Using functional studies, we reveal the molecular basis of METH recognition by TAAR1, and potential mechanisms underlying the selectivity of TAAR1 for different ligands. Molecular dynamics simulations further elucidated possible mechanisms for the binding of chiral amphetamine (AMPH)-like psychoactive drugs to TAAR1. Additionally, we discovered a hydrophobic core on the transmembrane helices (TM), TM5 and TM6, explaining the unique mechanism of TAAR1 activation. These findings reveal the ligand recognition pattern and activation mechanism of TAAR1, which has important implications for the development of next-generation treatments for substance abuse and various neurological disorders.
History
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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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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
C: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
N: Nb35
R: Soluble cytochrome b562,Trace amine-associated receptor 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)167,9336
Polymers167,7835
Non-polymers1491
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

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

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


Mass: 45683.434 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: Trichoplusia ni (cabbage looper) / References: UniProt: P63092
#2: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1


Mass: 38744.371 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P62873
#3: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / G gamma-I


Mass: 7845.078 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNG2 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P59768

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Protein , 2 types, 2 molecules NR

#4: Protein Nb35


Mass: 17540.746 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Trichoplusia ni (cabbage looper)
#5: Protein Soluble cytochrome b562,Trace amine-associated receptor 1 / Cytochrome b-562 / TaR-1 / Trace amine receptor 1


Mass: 57969.645 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli), (gene. exp.) Homo sapiens (human)
Gene: cybC, TAAR1, TA1, TAR1, TRAR1 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P0ABE7, UniProt: Q96RJ0

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Non-polymers , 1 types, 1 molecules

#6: Chemical ChemComp-B40 / (2S)-N-methyl-1-phenylpropan-2-amine / Methamphetamine


Mass: 149.233 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H15N / Feature type: SUBJECT OF INVESTIGATION

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Details

Has ligand of interestY
Has protein modificationY

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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: METH-bound hTAAR1-Gs complex / Type: COMPLEX / Entity ID: #1-#5 / Source: MULTIPLE SOURCES
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Trichoplusia ni (cabbage looper)
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: BRIGHT FIELD / Nominal defocus max: 1500 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 54 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

EM softwareName: PHENIX / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.66 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 647397 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0038568
ELECTRON MICROSCOPYf_angle_d0.51411591
ELECTRON MICROSCOPYf_dihedral_angle_d4.4991150
ELECTRON MICROSCOPYf_chiral_restr0.0421287
ELECTRON MICROSCOPYf_plane_restr0.0041472

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