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Yorodumi- PDB-7w6p: Cryo-EM structure of the alpha2A adrenergic receptor GoA signalin... -
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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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Keywords | MEMBRANE PROTEIN / GPCR / G-protein / signaling complex / biased agonist | ||||||
| Function / homology | Function and homology informationnegative regulation of uterine smooth muscle contraction / alpha2-adrenergic receptor activity / Adrenaline signalling through Alpha-2 adrenergic receptor / adenylate cyclase-inhibiting adrenergic receptor signaling pathway / alpha-2C adrenergic receptor binding / epinephrine binding / phospholipase C-activating adrenergic receptor signaling pathway / alpha-1B adrenergic receptor binding / negative regulation of norepinephrine secretion / negative regulation of epinephrine secretion ...negative regulation of uterine smooth muscle contraction / alpha2-adrenergic receptor activity / Adrenaline signalling through Alpha-2 adrenergic receptor / adenylate cyclase-inhibiting adrenergic receptor signaling pathway / alpha-2C adrenergic receptor binding / epinephrine binding / phospholipase C-activating adrenergic receptor signaling pathway / alpha-1B adrenergic receptor binding / negative regulation of norepinephrine secretion / negative regulation of epinephrine secretion / heterotrimeric G-protein binding / negative regulation of calcium ion-dependent exocytosis / Surfactant metabolism / positive regulation of potassium ion transport / dopaminergic synapse / thermoception / mu-type opioid receptor binding / fear response / corticotropin-releasing hormone receptor 1 binding / thioesterase binding / negative regulation of insulin secretion involved in cellular response to glucose stimulus / norepinephrine binding / positive regulation of membrane protein ectodomain proteolysis / vesicle docking involved in exocytosis / Adrenoceptors / G protein-coupled dopamine receptor signaling pathway / response to alcohol / intestinal absorption / adrenergic receptor signaling pathway / positive regulation of wound healing / response to morphine / regulation of heart contraction / negative regulation of calcium ion transport / parallel fiber to Purkinje cell synapse / negative regulation of lipid catabolic process / regulation of vasoconstriction / positive regulation of epidermal growth factor receptor signaling pathway / postsynaptic modulation of chemical synaptic transmission / cellular response to hormone stimulus / Rho protein signal transduction / adenylate cyclase-activating adrenergic receptor signaling pathway / presynaptic active zone membrane / G protein-coupled serotonin receptor binding / adenylate cyclase regulator activity / adenylate cyclase-inhibiting serotonin receptor signaling pathway / presynaptic modulation of chemical synaptic transmission / axon terminus / muscle contraction / guanyl-nucleotide exchange factor activity / positive regulation of cytokine production / locomotory behavior / female pregnancy / negative regulation of insulin secretion / platelet activation / postsynaptic density membrane / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / GABA-ergic synapse / vasodilation / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / adenylate cyclase-activating G protein-coupled receptor signaling pathway / 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 / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / G beta:gamma signalling through CDC42 / Prostacyclin signalling through prostacyclin receptor / 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 / photoreceptor disc membrane / 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 / ADP signalling through P2Y purinoceptor 1 / ADORA2B mediated anti-inflammatory cytokines production / cellular response to catecholamine stimulus / 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 / G-protein beta-subunit binding / cellular response to prostaglandin E stimulus / heterotrimeric G-protein complex / G alpha (12/13) signalling events / Inactivation, recovery and regulation of the phototransduction cascade / glucose homeostasis / extracellular vesicle / sensory perception of taste / Thrombin signalling through proteinase activated receptors (PARs) / signaling receptor complex adaptor activity Similarity search - Function | ||||||
| Biological species | Homo sapiens (human)![]() | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.47 Å | ||||||
Authors | Xu, J. / Fink, E.A. / Shoichet, B.K. / Du, Y. | ||||||
| Funding support | 1items
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Citation | Journal: Science / Year: 2022Title: 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. | ||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 7w6p.cif.gz | 208 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb7w6p.ent.gz | 157.4 KB | Display | PDB format |
| PDBx/mmJSON format | 7w6p.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/w6/7w6p ftp://data.pdbj.org/pub/pdb/validation_reports/w6/7w6p | HTTPS FTP |
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-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 F&H Search |
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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.) Homo sapiens (human) / Gene: GNAO1 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P09471 |
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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.) Homo sapiens (human) / Gene: GNB1 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P62873 |
| #3: Protein | 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: Trichoplusia ni (cabbage looper) / References: UniProt: P59768 |
-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.) ![]() Trichoplusia ni (cabbage looper) |
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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.) Homo sapiens (human) / Gene: ADRA2A, ADRA2R, ADRAR / Production host: ![]() |
| #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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| 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 |
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gel filtration
Trichoplusia ni (cabbage looper)
