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- PDB-8e9z: CryoEM structure of miniGq-coupled hM3R in complex with Iperoxo -

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Basic information

Entry
Database: PDB / ID: 8e9z
TitleCryoEM structure of miniGq-coupled hM3R in complex with Iperoxo
Components
  • (Guanine nucleotide-binding protein ...) x 2
  • Muscarinic acetylcholine receptor M3
  • miniGq
  • scFv16
KeywordsMEMBRANE PROTEIN / GPCR / IXO / active state / hM3R / Iperoxo
Function / homology
Function and homology information


saliva secretion / phospholipase C-activating G protein-coupled acetylcholine receptor signaling pathway / Muscarinic acetylcholine receptors / Acetylcholine regulates insulin secretion / G protein-coupled acetylcholine receptor activity / phosphatidylinositol-4,5-bisphosphate phospholipase C activity / regulation of smooth muscle contraction / positive regulation of smooth muscle contraction / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / acetylcholine binding ...saliva secretion / phospholipase C-activating G protein-coupled acetylcholine receptor signaling pathway / Muscarinic acetylcholine receptors / Acetylcholine regulates insulin secretion / G protein-coupled acetylcholine receptor activity / phosphatidylinositol-4,5-bisphosphate phospholipase C activity / regulation of smooth muscle contraction / positive regulation of smooth muscle contraction / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / acetylcholine binding / acetylcholine receptor signaling pathway / ligand-gated ion channel signaling pathway / smooth muscle contraction / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / basal plasma membrane / protein modification process / calcium-mediated signaling / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G protein-coupled acetylcholine receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / positive regulation of insulin secretion / 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 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / 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 / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADP signalling through P2Y purinoceptor 1 / ADORA2B mediated anti-inflammatory cytokines production / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / nervous system development / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / cellular response to prostaglandin E stimulus / heterotrimeric G-protein complex / G-protein beta-subunit binding / G alpha (12/13) signalling events / Inactivation, recovery and regulation of the phototransduction cascade / extracellular vesicle / sensory perception of taste / Thrombin signalling through proteinase activated receptors (PARs) / signaling receptor complex adaptor activity / retina development in camera-type eye / signaling receptor activity / GTPase binding / fibroblast proliferation / 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 / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / chemical synaptic transmission / basolateral plasma membrane / Ras protein signal transduction / postsynaptic membrane / cell population proliferation / Extra-nuclear estrogen signaling / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / dendrite / endoplasmic reticulum membrane / protein-containing complex binding / signal transduction / extracellular exosome / membrane / plasma membrane / cytoplasm / cytosol
Similarity search - Function
Muscarinic acetylcholine receptor M3 / Muscarinic acetylcholine receptor family / YVTN repeat-like/Quinoprotein amine dehydrogenase / 7 Propeller / Methylamine Dehydrogenase; Chain H / Serpentine type 7TM GPCR chemoreceptor Srsx / G-protein, gamma subunit / G-protein gamma subunit domain profile. / G-protein gamma-like domain / G-protein gamma-like domain superfamily ...Muscarinic acetylcholine receptor M3 / Muscarinic acetylcholine receptor family / YVTN repeat-like/Quinoprotein amine dehydrogenase / 7 Propeller / Methylamine Dehydrogenase; Chain H / Serpentine type 7TM GPCR chemoreceptor Srsx / 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 / G protein beta WD-40 repeat protein / Guanine nucleotide-binding protein, beta subunit / 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. / P-loop containing nucleotide triphosphate hydrolases / 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 / Immunoglobulins / Immunoglobulin-like / Sandwich / Rossmann fold / 3-Layer(aba) Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
Chem-IXO / CHOLESTEROL HEMISUCCINATE / Muscarinic acetylcholine receptor M3 / 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
Similarity search - Component
Biological speciesHomo sapiens (human)
Mus musculus (house mouse)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.69 Å
AuthorsZhang, S. / Fay, J.F. / Roth, B.L.
Funding support United States, 2items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK)U24DK1169195 United States
National Institutes of Health/National Institute of Mental Health (NIH/NIMH)Psychoactive Drug Screening (PDSP) United States
CitationJournal: Nature / Year: 2022
Title: Molecular basis for selective activation of DREADD-based chemogenetics.
Authors: Shicheng Zhang / Ryan H Gumpper / Xi-Ping Huang / Yongfeng Liu / Brian E Krumm / Can Cao / Jonathan F Fay / Bryan L Roth /
Abstract: Designer receptors exclusively activated by designer drugs (DREADDs) represent a powerful chemogenetic technology for the remote control of neuronal activity and cellular signalling. The muscarinic ...Designer receptors exclusively activated by designer drugs (DREADDs) represent a powerful chemogenetic technology for the remote control of neuronal activity and cellular signalling. The muscarinic receptor-based DREADDs are the most widely used chemogenetic tools in neuroscience research. The G-coupled DREADD (hM3Dq) is used to enhance neuronal activity, whereas the G-coupled DREADD (hM4Di) is utilized to inhibit neuronal activity. Here we report four DREADD-related cryogenic electron microscopy high-resolution structures: a hM3Dq-miniG complex and a hM4Di-miniG complex bound to deschloroclozapine; a hM3Dq-miniG complex bound to clozapine-N-oxide; and a hM3R-miniG complex bound to iperoxo. Complemented with mutagenesis, functional and computational simulation data, our structures reveal key details of the recognition of DREADD chemogenetic actuators and the molecular basis for activation. These findings should accelerate the structure-guided discovery of next-generation chemogenetic tools.
History
DepositionAug 27, 2022Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 30, 2022Provider: repository / Type: Initial release
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Revision 1.1Dec 14, 2022Group: Database references / Category: citation / citation_author
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Revision 1.2Dec 21, 2022Group: Database references / Category: citation
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Revision 1.3Oct 16, 2024Group: Data collection / Structure summary
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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Muscarinic acetylcholine receptor M3
B: miniGq
C: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
D: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
E: scFv16
hetero molecules


Theoretical massNumber of molelcules
Total (without water)166,0757
Polymers165,3915
Non-polymers6842
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Protein , 2 types, 2 molecules AB

#1: Protein Muscarinic acetylcholine receptor M3


Mass: 62966.617 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CHRM3 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P20309
#2: Protein miniGq


Mass: 28084.832 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)

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Guanine nucleotide-binding protein ... , 2 types, 2 molecules CD

#3: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 39798.410 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
#4: 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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Antibody , 1 types, 1 molecules E

#5: Antibody scFv16


Mass: 26679.721 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Production host: Spodoptera frugiperda (fall armyworm)

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Non-polymers , 2 types, 2 molecules

#6: Chemical ChemComp-IXO / 4-(4,5-dihydro-1,2-oxazol-3-yloxy)-N,N,N-trimethylbut-2-yn-1-aminium / Iperoxo


Mass: 197.254 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H17N2O2 / Feature type: SUBJECT OF INVESTIGATION
#7: Chemical ChemComp-Y01 / CHOLESTEROL HEMISUCCINATE


Mass: 486.726 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C31H50O4 / 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

Component
IDNameTypeEntity IDParent-IDSource
1Gq-coupled hM3R complexCOMPLEX#1-#50RECOMBINANT
2muscarinic acetylcholine receptor 3, miniGq protein, Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1, Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2COMPLEX#1-#41RECOMBINANT
3Single-chain variable fragment scFv16COMPLEX#51RECOMBINANT
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
12Homo sapiens (human)9606
23Mus musculus (house mouse)10090
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
12Spodoptera frugiperda (fall armyworm)7108
23Spodoptera frugiperda (fall armyworm)7108
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE-PROPANE

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Electron microscopy imaging

Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company
MicroscopyModel: FEI TALOS ARCTICA
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2100 nm / Nominal defocus min: 200 nm
Image recordingElectron dose: 59 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of real images: 2858

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Processing

SoftwareName: PHENIX / Version: 1.20.1_4487: / Classification: refinement
EM softwareName: PHENIX / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.69 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 462349 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0038811
ELECTRON MICROSCOPYf_angle_d0.6212010
ELECTRON MICROSCOPYf_dihedral_angle_d5.3051240
ELECTRON MICROSCOPYf_chiral_restr0.0441399
ELECTRON MICROSCOPYf_plane_restr0.0061512

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