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Yorodumi- EMDB-27969: CryoEM structure of miniGq-coupled hM3R in complex with Iperoxo -
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Basic information
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| Title | CryoEM structure of miniGq-coupled hM3R in complex with Iperoxo | |||||||||
Map data | CryoEM structure of miniGq-coupled hM3R in complex with Iperoxo | |||||||||
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Keywords | GPCR / IXO / active state / MEMBRANE PROTEIN / hM3R / Iperoxo | |||||||||
| Function / homology | Function and homology informationsaliva 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 / smooth muscle contraction / positive regulation of smooth muscle contraction / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / acetylcholine receptor signaling pathway ...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 / smooth muscle contraction / positive regulation of smooth muscle contraction / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / acetylcholine receptor signaling pathway / acetylcholine binding / regulation of smooth muscle contraction / ligand-gated ion channel signaling pathway / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / basal plasma membrane / protein modification process / calcium-mediated signaling / positive regulation of insulin secretion / 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 / 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) / G beta:gamma signalling through BTK / photoreceptor disc membrane / ADP signalling through P2Y purinoceptor 12 / Glucagon-type ligand receptors / Sensory perception of sweet, bitter, and umami (glutamate) taste / 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 / G beta:gamma signalling through PI3Kgamma / ADORA2B mediated anti-inflammatory cytokines production / adenylate cyclase-activating dopamine receptor signaling pathway / nervous system development / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / cellular response to prostaglandin E stimulus / GPER1 signaling / heterotrimeric G-protein complex / Inactivation, recovery and regulation of the phototransduction cascade / G alpha (12/13) signalling events / G-protein beta-subunit binding / extracellular vesicle / Thrombin signalling through proteinase activated receptors (PARs) / signaling receptor complex adaptor activity / signaling receptor activity / GTPase binding / chemical synaptic transmission / 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 / basolateral plasma membrane / G alpha (q) signalling events / Ras protein signal transduction / postsynaptic membrane / 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 / cytosol / cytoplasm Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) / ![]() | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 2.69 Å | |||||||||
Authors | Zhang S / Fay JF / Roth BL | |||||||||
| Funding support | United States, 2 items
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Citation | Journal: Nature / Year: 2022Title: 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. | |||||||||
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Structure visualization
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_27969.map.gz | 77.7 MB | EMDB map data format | |
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| Header (meta data) | emd-27969-v30.xml emd-27969.xml | 25.5 KB 25.5 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_27969_fsc.xml | 13.3 KB | Display | FSC data file |
| Images | emd_27969.png | 61.4 KB | ||
| Filedesc metadata | emd-27969.cif.gz | 7.4 KB | ||
| Others | emd_27969_half_map_1.map.gz emd_27969_half_map_2.map.gz | 84.5 MB 84.5 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-27969 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-27969 | 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 F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_27969.map.gz / Format: CCP4 / Size: 91.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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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 | ||||||||||||
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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 | ||||||||||||
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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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Processing | 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: FIELD EMISSION GUN |
| 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 |
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About Yorodumi



Keywords
Homo sapiens (human)
Authors
United States, 2 items
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Processing
FIELD EMISSION GUN


