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- PDB-8fx5: Human M4 muscarinic acetylcholine receptor complex with Gi1 and x... -
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Open data
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Basic information
Entry | Database: PDB / ID: 8fx5 | |||||||||||||||||||||||||||||||||||||||||||||
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Title | Human M4 muscarinic acetylcholine receptor complex with Gi1 and xanomeline | |||||||||||||||||||||||||||||||||||||||||||||
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![]() | MEMBRANE PROTEIN/SIGNALING PROTEIN / 7 transmembrane receptor / SIGNALING PROTEIN-IMMUNE SYSTEM complex / MEMBRANE PROTEIN / MEMBRANE PROTEIN-SIGNALING PROTEIN-IMMUNE SYSTEM complex / MEMBRANE PROTEIN-SIGNALING PROTEIN complex | |||||||||||||||||||||||||||||||||||||||||||||
Function / homology | ![]() Adenylate cyclase inhibitory pathway / adenylate cyclase inhibitor activity / Adrenaline,noradrenaline inhibits insulin secretion / ADP signalling through P2Y purinoceptor 12 / Muscarinic acetylcholine receptors / G protein-coupled acetylcholine receptor activity / Extra-nuclear estrogen signaling / G alpha (i) signalling events / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / regulation of locomotion ...Adenylate cyclase inhibitory pathway / adenylate cyclase inhibitor activity / Adrenaline,noradrenaline inhibits insulin secretion / ADP signalling through P2Y purinoceptor 12 / Muscarinic acetylcholine receptors / G protein-coupled acetylcholine receptor activity / Extra-nuclear estrogen signaling / G alpha (i) signalling events / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / regulation of locomotion / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / negative regulation of insulin secretion / positive regulation of protein localization to cell cortex / T cell migration / D2 dopamine receptor binding / response to prostaglandin E / adenylate cyclase-inhibiting serotonin receptor signaling pathway / cellular response to forskolin / regulation of mitotic spindle organization / positive regulation of cholesterol biosynthetic process / G protein-coupled receptor binding / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / centriolar satellite / 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 / GDP binding / 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 / G alpha (12/13) signalling events / sensory perception of taste / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / G protein activity / GTPase binding / Ca2+ pathway / retina development in camera-type eye / midbody / cell cortex / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / fibroblast proliferation / G alpha (i) signalling events / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / 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 / cell surface receptor signaling pathway / ciliary basal body / G protein-coupled receptor signaling pathway / lysosomal membrane / cell division / GTPase activity / synapse / centrosome / dendrite / protein-containing complex binding / GTP binding / nucleolus / magnesium ion binding / Golgi apparatus / signal transduction / extracellular exosome / nucleoplasm / membrane / plasma membrane Similarity search - Function | |||||||||||||||||||||||||||||||||||||||||||||
Biological species | ![]() ![]() ![]() | |||||||||||||||||||||||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.45 Å | |||||||||||||||||||||||||||||||||||||||||||||
![]() | Vuckovic, Z. / Mobbs, J.I. / Glukhova, A. / Sexton, P.M. / Danev, R. / Thal, D.M. | |||||||||||||||||||||||||||||||||||||||||||||
Funding support | ![]() ![]() ![]()
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![]() | ![]() Title: Xanomeline displays concomitant orthosteric and allosteric binding modes at the M mAChR. Authors: Wessel A C Burger / Vi Pham / Ziva Vuckovic / Alexander S Powers / Jesse I Mobbs / Yianni Laloudakis / Alisa Glukhova / Denise Wootten / Andrew B Tobin / Patrick M Sexton / Steven M Paul / ...Authors: Wessel A C Burger / Vi Pham / Ziva Vuckovic / Alexander S Powers / Jesse I Mobbs / Yianni Laloudakis / Alisa Glukhova / Denise Wootten / Andrew B Tobin / Patrick M Sexton / Steven M Paul / Christian C Felder / Radostin Danev / Ron O Dror / Arthur Christopoulos / Celine Valant / David M Thal / ![]() ![]() ![]() ![]() Abstract: The M muscarinic acetylcholine receptor (M mAChR) has emerged as a drug target of high therapeutic interest due to its expression in regions of the brain involved in the regulation of psychosis, ...The M muscarinic acetylcholine receptor (M mAChR) has emerged as a drug target of high therapeutic interest due to its expression in regions of the brain involved in the regulation of psychosis, cognition, and addiction. The mAChR agonist, xanomeline, has provided significant improvement in the Positive and Negative Symptom Scale (PANSS) scores in a Phase II clinical trial for the treatment of patients suffering from schizophrenia. Here we report the active state cryo-EM structure of xanomeline bound to the human M mAChR in complex with the heterotrimeric G transducer protein. Unexpectedly, two molecules of xanomeline were found to concomitantly bind to the monomeric M mAChR, with one molecule bound in the orthosteric (acetylcholine-binding) site and a second molecule in an extracellular vestibular allosteric site. Molecular dynamic simulations supports the structural findings, and pharmacological validation confirmed that xanomeline acts as a dual orthosteric and allosteric ligand at the human M mAChR. These findings provide a basis for further understanding xanomeline's complex pharmacology and highlight the myriad of ways through which clinically relevant ligands can bind to and regulate GPCRs. | |||||||||||||||||||||||||||||||||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 239.1 KB | Display | ![]() |
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PDB format | ![]() | 182.6 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 29524MC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
-Guanine nucleotide-binding protein ... , 3 types, 3 molecules BGA
#2: Protein | Mass: 38402.867 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#3: Protein | Mass: 7729.947 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#5: Protein | Mass: 40414.047 Da / Num. of mol.: 1 / Mutation: S47N, G203A, E245A, A326S Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-Protein / Antibody , 2 types, 2 molecules RH
#1: Protein | Mass: 39598.277 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#4: Antibody | Mass: 26466.486 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Non-polymers , 2 types, 49 molecules 


#6: Chemical | #7: Water | ChemComp-HOH / | |
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-Details
Has ligand of interest | Y |
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Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: M4 mAChR bound to agonist xanomeline in complex with dominant negative Galpha-i1, Gbeta1, Ggamma2, and scFv16 Type: COMPLEX / Entity ID: #1-#5 / Source: MULTIPLE SOURCES |
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Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: TFS KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 1500 nm / Nominal defocus min: 500 nm |
Image recording | Electron dose: 52.4 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
Software | Name: PHENIX / Version: 1.20.1_4487: / Classification: refinement | ||||||||||||||||||||||||
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EM software | Name: PHENIX / Category: model refinement | ||||||||||||||||||||||||
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 2.45 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 395419 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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