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Open data
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Basic information
| Entry | Database: PDB / ID: 9pa2 | |||||||||||||||||||||
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| Title | PCP bound mu-opioid receptor in complex with Gi1 | |||||||||||||||||||||
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Keywords | SIGNALING PROTEIN / mu-opioid receptor / GPCR | |||||||||||||||||||||
| Function / homology | Function and homology informationOpioid Signalling / beta-endorphin receptor activity / morphine receptor activity / negative regulation of Wnt protein secretion / regulation of cellular response to stress / G protein-coupled opioid receptor signaling pathway / negative regulation of nitric oxide biosynthetic process / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / behavioral response to ethanol / regulation of NMDA receptor activity ...Opioid Signalling / beta-endorphin receptor activity / morphine receptor activity / negative regulation of Wnt protein secretion / regulation of cellular response to stress / G protein-coupled opioid receptor signaling pathway / negative regulation of nitric oxide biosynthetic process / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / behavioral response to ethanol / regulation of NMDA receptor activity / neuropeptide binding / positive regulation of neurogenesis / sensory perception / negative regulation of cytosolic calcium ion concentration / G-protein alpha-subunit binding / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / voltage-gated calcium channel activity / MECP2 regulates neuronal receptors and channels / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / T cell migration / positive regulation of relaxation of smooth muscle / Adenylate cyclase inhibitory pathway / D2 dopamine receptor binding / sensory perception of pain / adenylate cyclase-inhibiting serotonin receptor signaling pathway / G protein-coupled serotonin receptor binding / cellular response to forskolin / Peptide ligand-binding receptors / regulation of mitotic spindle organization / chemokine-mediated signaling pathway / Regulation of insulin secretion / neuropeptide signaling pathway / response to prostaglandin E / positive regulation of cholesterol biosynthetic process / negative regulation of insulin secretion / G protein-coupled receptor binding / response to peptide hormone / G protein-coupled receptor activity / centriolar satellite / G-protein beta/gamma-subunit complex binding / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / 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 / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / 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 / GDP binding / 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 / ADORA2B mediated anti-inflammatory cytokines production / 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 / cellular response to prostaglandin E stimulus / heterotrimeric G-protein complex / G alpha (12/13) signalling events / Inactivation, recovery and regulation of the phototransduction cascade / G-protein beta-subunit binding / extracellular vesicle / sensory perception of taste / sperm principal piece / Thrombin signalling through proteinase activated receptors (PARs) / adenylate cyclase-activating G protein-coupled receptor signaling pathway / signaling receptor complex adaptor activity / retina development in camera-type eye / Interleukin-4 and Interleukin-13 signaling / GTPase binding / fibroblast proliferation / G protein activity / midbody / Ca2+ pathway / cell cortex / 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 / G alpha (q) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / perikaryon / Ras protein signal transduction Similarity search - Function | |||||||||||||||||||||
| Biological species | Homo sapiens (human)![]() | |||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.86 Å | |||||||||||||||||||||
Authors | Jiang, Q.R. / Han, J.M. / Fay, J.F. / Che, T. | |||||||||||||||||||||
| Funding support | United States, 2items
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Citation | Journal: Nat.Struct.Mol.Biol. / Year: 2026Title: Structural basis of opioid receptor activation by PCP and ketamine. Authors: Jiang, Q. / Han, J. / Fine, E.J. / Ramos-Gonzalez, N. / Rangari, V.A. / Ruiz, M.V. / Critz, M.L. / Suomivuori, C.M. / Wang, J. / Albert, T.L. / Whiddon, K. / Li, K. / Robertson, M.J. / ...Authors: Jiang, Q. / Han, J. / Fine, E.J. / Ramos-Gonzalez, N. / Rangari, V.A. / Ruiz, M.V. / Critz, M.L. / Suomivuori, C.M. / Wang, J. / Albert, T.L. / Whiddon, K. / Li, K. / Robertson, M.J. / Huang, X.P. / Land, B.B. / Majumdar, S. / Fay, J.F. / Dror, R.O. / Che, T. | |||||||||||||||||||||
| History |
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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 | 9pa2.cif.gz | 234.8 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb9pa2.ent.gz | 179.2 KB | Display | PDB format |
| PDBx/mmJSON format | 9pa2.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/pa/9pa2 ftp://data.pdbj.org/pub/pdb/validation_reports/pa/9pa2 | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 71430 ![]() 9pa1C ![]() 9pa3C ![]() 9pa4C ![]() 9pa5C ![]() 9pa6C 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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| 1 |
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Components
-Guanine nucleotide-binding protein ... , 3 types, 3 molecules ABC
| #2: Protein | Mass: 40414.047 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNAI1 / Production host: ![]() |
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| #3: Protein | Mass: 37342.785 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Production host: ![]() |
| #4: 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: ![]() |
-Protein / Antibody / Non-polymers , 3 types, 3 molecules RE

| #1: Protein | Mass: 35233.996 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: OPRM1, MOR1 / Production host: ![]() |
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| #5: Antibody | Mass: 26679.721 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
| #6: Chemical | ChemComp-1PC / |
-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: The cryo-EM structure of MOR and PCP Ligand: PCP / Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT |
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| Molecular weight | Experimental value: NO |
| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 7.4 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Tecnai Polara / Image courtesy: FEI Company |
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| Microscopy | Model: FEI POLARA 300 |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2720 nm / Nominal defocus min: 480 nm |
| Image recording | Electron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 2.86 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 397212 / Symmetry type: POINT | ||||||||||||||||||||||||
| Refinement | Highest resolution: 2.86 Å Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||
| Refine LS restraints |
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About Yorodumi




Homo sapiens (human)

United States, 2items
Citation





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FIELD EMISSION GUN