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- PDB-7w6p: Cryo-EM structure of the alpha2A adrenergic receptor GoA signalin... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7w6p | ||||||
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Title | Cryo-EM structure of the alpha2A adrenergic receptor GoA signaling complex bound to a G protein biased agonist | ||||||
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![]() | MEMBRANE PROTEIN / GPCR / G-protein / signaling complex / biased agonist | ||||||
Function / homology | ![]() negative regulation of uterine smooth muscle contraction / adenylate cyclase-inhibiting adrenergic receptor signaling pathway / alpha2-adrenergic receptor activity / Adrenaline signalling through Alpha-2 adrenergic receptor / alpha-2C adrenergic receptor binding / : / phospholipase C-activating adrenergic receptor signaling pathway / negative regulation of epinephrine secretion / epinephrine binding / negative regulation of norepinephrine secretion ...negative regulation of uterine smooth muscle contraction / adenylate cyclase-inhibiting adrenergic receptor signaling pathway / alpha2-adrenergic receptor activity / Adrenaline signalling through Alpha-2 adrenergic receptor / alpha-2C adrenergic receptor binding / : / phospholipase C-activating adrenergic receptor signaling pathway / negative regulation of epinephrine secretion / epinephrine binding / negative regulation of norepinephrine secretion / alpha-1B adrenergic receptor binding / negative regulation of calcium ion transmembrane transporter activity / heterotrimeric G-protein binding / negative regulation of calcium ion-dependent exocytosis / dopaminergic synapse / Surfactant metabolism / positive regulation of potassium ion transport / mu-type opioid receptor binding / corticotropin-releasing hormone receptor 1 binding / thermoception / fear response / thioesterase binding / negative regulation of insulin secretion involved in cellular response to glucose stimulus / vesicle docking involved in exocytosis / response to alcohol / positive regulation of membrane protein ectodomain proteolysis / norepinephrine binding / intestinal absorption / Adrenoceptors / activation of protein kinase activity / response to morphine / positive regulation of epidermal growth factor receptor signaling pathway / positive regulation of wound healing / G protein-coupled dopamine receptor signaling pathway / adrenergic receptor signaling pathway / regulation of heart contraction / parallel fiber to Purkinje cell synapse / negative regulation of calcium ion transport / Rho protein signal transduction / regulation of vasoconstriction / postsynaptic modulation of chemical synaptic transmission / negative regulation of insulin secretion / negative regulation of lipid catabolic process / adenylate cyclase-activating adrenergic receptor signaling pathway / cellular response to hormone stimulus / activation of protein kinase B activity / G protein-coupled serotonin receptor binding / presynaptic active zone membrane / adenylate cyclase-inhibiting serotonin receptor signaling pathway / adenylate cyclase regulator activity / muscle contraction / axon terminus / presynaptic modulation of chemical synaptic transmission / positive regulation of MAP kinase activity / guanyl-nucleotide exchange factor activity / GABA-ergic synapse / positive regulation of cytokine production / female pregnancy / locomotory behavior / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / postsynaptic density membrane / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / platelet activation / 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 / adenylate cyclase-activating G protein-coupled receptor signaling pathway / 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 / vasodilation / 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 / ADORA2B mediated anti-inflammatory cytokines production / cellular response to catecholamine stimulus / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / 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 Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.47 Å | ||||||
![]() | Xu, J. / Fink, E.A. / Shoichet, B.K. / Du, Y. | ||||||
Funding support | 1items
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![]() | ![]() Title: Structure-based discovery of nonopioid analgesics acting through the α-adrenergic receptor. Authors: Elissa A Fink / Jun Xu / Harald Hübner / Joao M Braz / Philipp Seemann / Charlotte Avet / Veronica Craik / Dorothee Weikert / Maximilian F Schmidt / Chase M Webb / Nataliya A Tolmachova / ...Authors: Elissa A Fink / Jun Xu / Harald Hübner / Joao M Braz / Philipp Seemann / Charlotte Avet / Veronica Craik / Dorothee Weikert / Maximilian F Schmidt / Chase M Webb / Nataliya A Tolmachova / Yurii S Moroz / Xi-Ping Huang / Chakrapani Kalyanaraman / Stefan Gahbauer / Geng Chen / Zheng Liu / Matthew P Jacobson / John J Irwin / Michel Bouvier / Yang Du / Brian K Shoichet / Allan I Basbaum / Peter Gmeiner / ![]() ![]() ![]() ![]() ![]() ![]() Abstract: Because nonopioid analgesics are much sought after, we computationally docked more than 301 million virtual molecules against a validated pain target, the α-adrenergic receptor (αAR), seeking new ...Because nonopioid analgesics are much sought after, we computationally docked more than 301 million virtual molecules against a validated pain target, the α-adrenergic receptor (αAR), seeking new αAR agonists chemotypes that lack the sedation conferred by known αAR drugs, such as dexmedetomidine. We identified 17 ligands with potencies as low as 12 nanomolar, many with partial agonism and preferential G and G signaling. Experimental structures of αAR complexed with two of these agonists confirmed the docking predictions and templated further optimization. Several compounds, including the initial docking hit '9087 [mean effective concentration (EC) of 52 nanomolar] and two analogs, '7075 and PS75 (EC 4.1 and 4.8 nanomolar), exerted on-target analgesic activity in multiple in vivo pain models without sedation. These newly discovered agonists are interesting as therapeutic leads that lack the liabilities of opioids and the sedation of dexmedetomidine. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 208 KB | Display | ![]() |
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PDB format | ![]() | 157.4 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 917.9 KB | Display | ![]() |
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Full document | ![]() | 937.3 KB | Display | |
Data in XML | ![]() | 36.8 KB | Display | |
Data in CIF | ![]() | 55.4 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 32331MC ![]() 7w7eC 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 ABG
#1: Protein | Mass: 40100.500 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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#2: Protein | Mass: 38402.867 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#3: Protein | Mass: 7861.143 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Antibody / Protein / Non-polymers , 3 types, 3 molecules HR

#4: Antibody | Mass: 32898.781 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#5: Protein | Mass: 50704.566 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
#6: Chemical | ChemComp-W96 / |
-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: Signaling complex of alpha2A adrenergic receptor with GoA Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT | ||||||||||||
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Molecular weight | Experimental value: NO | ||||||||||||
Source (natural) |
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Source (recombinant) |
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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: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm |
Image recording | Electron dose: 60 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3D reconstruction | Resolution: 3.47 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 287431 / Symmetry type: POINT |