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- EMDB-27969: CryoEM structure of miniGq-coupled hM3R in complex with Iperoxo -
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Open data
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Basic information
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Title | CryoEM structure of miniGq-coupled hM3R in complex with Iperoxo | |||||||||
![]() | CryoEM structure of miniGq-coupled hM3R in complex with Iperoxo | |||||||||
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![]() | GPCR / IXO / active state / MEMBRANE PROTEIN / hM3R / Iperoxo | |||||||||
Function / homology | ![]() saliva secretion / Muscarinic acetylcholine receptors / G protein-coupled acetylcholine receptor activity / : / phospholipase C-activating G protein-coupled acetylcholine receptor signaling pathway / Acetylcholine regulates insulin secretion / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / positive regulation of smooth muscle contraction / regulation of smooth muscle contraction / phosphatidylinositol-4,5-bisphosphate phospholipase C activity ...saliva secretion / Muscarinic acetylcholine receptors / G protein-coupled acetylcholine receptor activity / : / phospholipase C-activating G protein-coupled acetylcholine receptor signaling pathway / Acetylcholine regulates insulin secretion / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / positive regulation of smooth muscle contraction / regulation of smooth muscle contraction / phosphatidylinositol-4,5-bisphosphate phospholipase C activity / acetylcholine binding / acetylcholine receptor signaling pathway / ligand-gated ion channel signaling pathway / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / smooth muscle contraction / basal plasma membrane / calcium-mediated signaling / protein modification process / positive regulation of insulin secretion / 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 / G beta:gamma signalling through CDC42 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / 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 / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / adenylate cyclase-activating dopamine receptor signaling pathway / GPER1 signaling / Inactivation, recovery and regulation of the phototransduction cascade / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / nervous system development / G alpha (12/13) signalling events / sensory perception of taste / extracellular vesicle / signaling receptor complex adaptor activity / signaling receptor activity / Thrombin signalling through proteinase activated receptors (PARs) / GTPase binding / Ca2+ pathway / retina development in camera-type eye / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / fibroblast proliferation / G alpha (i) signalling events / basolateral plasma membrane / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / chemical synaptic transmission / G alpha (q) signalling events / postsynaptic membrane / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell population proliferation / 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 / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.69 Å | |||||||||
![]() | Zhang S / Fay JF / Roth BL | |||||||||
Funding support | ![]()
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![]() | ![]() 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 |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 77.7 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 25.5 KB 25.5 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 13.3 KB | Display | ![]() |
Images | ![]() | 61.4 KB | ||
Filedesc metadata | ![]() | 7.4 KB | ||
Others | ![]() ![]() | 84.5 MB 84.5 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 725 KB | Display | ![]() |
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Full document | ![]() | 724.5 KB | Display | |
Data in XML | ![]() | 18.7 KB | Display | |
Data in CIF | ![]() | 24.7 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8e9zMC ![]() 8e9wC ![]() 8e9xC ![]() 8e9yC ![]() 8ea0C 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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Annotation | CryoEM structure of miniGq-coupled hM3R in complex with Iperoxo | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.88 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: Half Map 1
File | emd_27969_half_map_1.map | ||||||||||||
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Annotation | Half Map 1 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half Map 2
File | emd_27969_half_map_2.map | ||||||||||||
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Annotation | Half Map 2 | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
+Entire : Gq-coupled hM3R complex
+Supramolecule #1: Gq-coupled hM3R complex
+Supramolecule #2: muscarinic acetylcholine receptor 3, miniGq protein, Guanine nucl...
+Supramolecule #3: Single-chain variable fragment scFv16
+Macromolecule #1: Muscarinic acetylcholine receptor M3
+Macromolecule #2: miniGq
+Macromolecule #3: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
+Macromolecule #4: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
+Macromolecule #5: scFv16
+Macromolecule #6: 4-(4,5-dihydro-1,2-oxazol-3-yloxy)-N,N,N-trimethylbut-2-yn-1-aminium
+Macromolecule #7: CHOLESTEROL HEMISUCCINATE
-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-PROPANE |
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Electron microscopy
Microscope | FEI TALOS ARCTICA |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Number real images: 2858 / Average electron dose: 59.0 e/Å2 |
Electron beam | Acceleration voltage: 200 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.1 µm / Nominal defocus min: 0.2 µm |
Experimental equipment | ![]() Model: Talos Arctica / Image courtesy: FEI Company |