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- PDB-6ddf: Mu Opioid Receptor-Gi Protein Complex -

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Basic information

Entry
Database: PDB / ID: 6ddf
TitleMu Opioid Receptor-Gi Protein Complex
Components
  • DAMGO
  • Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
  • Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
  • Guanine nucleotide-binding protein G(i) subunit alpha-1
  • Mu-type opioid receptor
KeywordsMEMBRANE PROTEIN / Complex / Transmembrane
Function / homology
Function and homology information


Opioid Signalling / spine apparatus / beta-endorphin receptor activity / morphine receptor activity / negative regulation of Wnt protein secretion / Peptide ligand-binding receptors / adenylate cyclase-inhibiting opioid receptor signaling pathway / positive regulation of appetite / G-protein activation / G protein-coupled opioid receptor activity ...Opioid Signalling / spine apparatus / beta-endorphin receptor activity / morphine receptor activity / negative regulation of Wnt protein secretion / Peptide ligand-binding receptors / adenylate cyclase-inhibiting opioid receptor signaling pathway / positive regulation of appetite / G-protein activation / G protein-coupled opioid receptor activity / negative regulation of luteinizing hormone secretion / G protein-coupled opioid receptor signaling pathway / sperm ejaculation / G alpha (i) signalling events / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / negative regulation of nitric oxide biosynthetic process / negative regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / neuropeptide binding / negative regulation of cAMP-mediated signaling / regulation of NMDA receptor activity / positive regulation of neurogenesis / eating behavior / negative regulation of cytosolic calcium ion concentration / transmission of nerve impulse / social behavior / G-protein alpha-subunit binding / Adenylate cyclase inhibitory pathway / GABA-ergic synapse / voltage-gated calcium channel activity / neuropeptide signaling pathway / positive regulation of protein localization to cell cortex / regulation of cAMP-mediated signaling / D2 dopamine receptor binding / G protein-coupled serotonin receptor binding / regulation of mitotic spindle organization / cellular response to forskolin / positive regulation of gluconeogenesis / sensory perception of pain / dendrite membrane / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / presynaptic modulation of chemical synaptic transmission / excitatory postsynaptic potential / dendrite cytoplasm / locomotory behavior / Regulation of insulin secretion / G protein-coupled receptor activity / G protein-coupled receptor binding / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G-protein activation / G protein-coupled acetylcholine receptor signaling pathway / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / Sensory perception of sweet, bitter, and umami (glutamate) taste / response to peptide hormone / photoreceptor disc membrane / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / adenylate cyclase-activating dopamine receptor signaling pathway / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / GDP binding / G-protein beta-subunit binding / Inactivation, recovery and regulation of the phototransduction cascade / heterotrimeric G-protein complex / G alpha (12/13) signalling events / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / GTPase binding / retina development in camera-type eye / phospholipase C-activating G protein-coupled receptor signaling pathway / Ca2+ pathway / presynaptic membrane / cell cortex / midbody / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / G alpha (q) signalling events
Similarity search - Function
Mu opioid receptor / Transducin (heterotrimeric G protein), gamma chain / G Protein Gi Gamma 2 / Opioid receptor / Rhopdopsin 7-helix transmembrane proteins / Rhodopsin 7-helix transmembrane proteins / YVTN repeat-like/Quinoprotein amine dehydrogenase / G-protein alpha subunit, group I / 7 Propeller / Methylamine Dehydrogenase; Chain H ...Mu opioid receptor / Transducin (heterotrimeric G protein), gamma chain / G Protein Gi Gamma 2 / Opioid receptor / Rhopdopsin 7-helix transmembrane proteins / Rhodopsin 7-helix transmembrane proteins / YVTN repeat-like/Quinoprotein amine dehydrogenase / G-protein alpha subunit, group I / 7 Propeller / Methylamine Dehydrogenase; Chain H / G-alpha domain profile. / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G protein alpha subunit / G-protein, gamma subunit / G-protein gamma subunit domain profile. / GGL domain / G-protein gamma-like domain superfamily / G-protein gamma-like domain / GGL domain / G protein gamma subunit-like motifs / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / G-protein coupled receptors family 1 signature. / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family) / Few Secondary Structures / Irregular / G-protein beta WD-40 repeat / P-loop containing nucleotide triphosphate hydrolases / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / Up-down Bundle / P-loop containing nucleoside triphosphate hydrolase / Rossmann fold / 3-Layer(aba) Sandwich / Mainly Beta / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
DAMGO / Mu-type opioid receptor / Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Guanine nucleotide-binding protein G(i) subunit alpha-1
Similarity search - Component
Biological speciesHomo sapiens (human)
Mus musculus (house mouse)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.5 Å
AuthorsKoehl, A. / Hu, H. / Maeda, S. / Manglik, A. / Kobilka, B.K. / Skiniotis, G. / Weis, W.I.
Funding support United States, Switzerland, 5items
OrganizationGrant numberCountry
National Institutes of Health/National Institute on Drug Abuse (NIH/NIDA)R37DA036246 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM083118 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)T32GM007276 United States
Swiss National Science Foundation310030_153145 Switzerland
Swiss National Science Foundation310030B_17335 Switzerland
CitationJournal: Nature / Year: 2018
Title: Structure of the µ-opioid receptor-G protein complex.
Authors: Antoine Koehl / Hongli Hu / Shoji Maeda / Yan Zhang / Qianhui Qu / Joseph M Paggi / Naomi R Latorraca / Daniel Hilger / Roger Dawson / Hugues Matile / Gebhard F X Schertler / Sebastien ...Authors: Antoine Koehl / Hongli Hu / Shoji Maeda / Yan Zhang / Qianhui Qu / Joseph M Paggi / Naomi R Latorraca / Daniel Hilger / Roger Dawson / Hugues Matile / Gebhard F X Schertler / Sebastien Granier / William I Weis / Ron O Dror / Aashish Manglik / Georgios Skiniotis / Brian K Kobilka /
Abstract: The μ-opioid receptor (μOR) is a G-protein-coupled receptor (GPCR) and the target of most clinically and recreationally used opioids. The induced positive effects of analgesia and euphoria are ...The μ-opioid receptor (μOR) is a G-protein-coupled receptor (GPCR) and the target of most clinically and recreationally used opioids. The induced positive effects of analgesia and euphoria are mediated by μOR signalling through the adenylyl cyclase-inhibiting heterotrimeric G protein G. Here we present the 3.5 Å resolution cryo-electron microscopy structure of the μOR bound to the agonist peptide DAMGO and nucleotide-free G. DAMGO occupies the morphinan ligand pocket, with its N terminus interacting with conserved receptor residues and its C terminus engaging regions important for opioid-ligand selectivity. Comparison of the μOR-G complex to previously determined structures of other GPCRs bound to the stimulatory G protein G reveals differences in the position of transmembrane receptor helix 6 and in the interactions between the G protein α-subunit and the receptor core. Together, these results shed light on the structural features that contribute to the G protein-coupling specificity of the µOR.
History
DepositionMay 10, 2018Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 13, 2018Provider: repository / Type: Initial release
Revision 1.1Jun 27, 2018Group: Data collection / Database references / Category: citation / Item: _citation.pdbx_database_id_PubMed / _citation.title
Revision 1.2Jul 4, 2018Group: Data collection / Database references / Category: citation
Item: _citation.journal_id_ISSN / _citation.journal_volume ..._citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.title
Revision 1.3Dec 11, 2019Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 2.0Nov 15, 2023Group: Atomic model / Data collection ...Atomic model / Data collection / Database references / Derived calculations
Category: atom_site / chem_comp_atom ...atom_site / chem_comp_atom / chem_comp_bond / database_2 / struct_conn
Item: _atom_site.auth_atom_id / _atom_site.label_atom_id ..._atom_site.auth_atom_id / _atom_site.label_atom_id / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_conn.pdbx_leaving_atom_flag

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Structure visualization

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  • EMDB-7869
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Structure viewerMolecule:
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Assembly

Deposited unit
A: Guanine nucleotide-binding protein G(i) subunit alpha-1
B: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
C: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
R: Mu-type opioid receptor
D: DAMGO


Theoretical massNumber of molelcules
Total (without water)126,4565
Polymers126,4565
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: microscopy, Complex was stable in both negative stain and vitrified conditions., gel filtration, Complex co-eluted in a single peak that contained all components by SDS PAGE
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area10290 Å2
ΔGint-71 kcal/mol
Surface area39100 Å2

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Components

#1: Protein Guanine nucleotide-binding protein G(i) subunit alpha-1 / Adenylate cyclase-inhibiting G alpha protein


Mass: 40415.031 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNAI1 / Plasmid: pVL1392 / Production host: Trichoplusia ni (cabbage looper) / Strain (production host): High Five / References: UniProt: P63096
#2: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 37671.102 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Plasmid: pVL1392 / Production host: Trichoplusia ni (cabbage looper) / Strain (production host): High Five / References: UniProt: P62873
#3: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / G gamma-I


Mass: 7861.143 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNG2 / Plasmid: pVL1392 / Production host: Trichoplusia ni (cabbage looper) / Strain (production host): High Five / References: UniProt: P59768
#4: Protein Mu-type opioid receptor / MOR-1


Mass: 39995.105 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Gene: Oprm1, Mor, Oprm / Plasmid: pVL 1392 / Production host: Spodoptera frugiperda (fall armyworm) / Strain (production host): Sf9 / References: UniProt: P42866
#5: Protein/peptide DAMGO


Type: Peptide-like / Mass: 513.587 Da / Num. of mol.: 1 / Source method: obtained synthetically / Details: analogue of enkephalin / Source: (synth.) Homo sapiens (human) / References: DAMGO

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Ternary complex of DAMGO-activated Mu-type opioid receptor with heterotrimeric Gi
Type: COMPLEX
Details: Signaling complex formed by incubation of DAMGO-bound Mu-type opioid receptor and heterotrimeric Gi. Excess GDP removed by addition of apyrase.
Entity ID: all / Source: RECOMBINANT
Molecular weightValue: 0.12 MDa / Experimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.5
Details: Solutions were made fresh. After buffer reconstitution, all buffers were filtered with 0.22um filter.
Buffer component
IDConc.NameFormulaBuffer-ID
1100 mMSodium ChlorideNaCl1
210 mMHEPESC8H18N2O4S1
3100 uMTCEP1
42 uMDAMGO1
50.00075 %Lauryl Maltose Neopentyl Glycol1
60.00025 %Glyco-Digosenin1
70.00001 %Cholesteryl Hemisuccinate1
SpecimenConc.: 7 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Details: This sample was monodisperse by negative stain and Cryo-EM analysis.
Specimen supportGrid material: GOLD / Grid mesh size: 200 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 293 K / Details: blot 1 second before plunging

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Calibrated magnification: 48076 X / Nominal defocus min: 800 nm / Cs: 2.7 mm
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingAverage exposure time: 8 sec. / Electron dose: 37 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of real images: 2642
Details: Images were collected in movie-mode at 10 frames per second.
Image scansMovie frames/image: 80

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Processing

EM software
IDNameVersionCategory
4Gctf1.06CTF correction
10RELION2.1initial Euler assignment
11FREALIGNfinal Euler assignment
CTF correctionType: PHASE FLIPPING ONLY
Particle selectionNum. of particles selected: 893426
3D reconstructionResolution: 3.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 359406 / Symmetry type: POINT

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