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- EMDB-34277: Cryo-EM structure of CP-CB2-G protein complex -

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Basic information

Entry
Database: EMDB / ID: EMD-34277
TitleCryo-EM structure of CP-CB2-G protein complex
Map data
Sample
  • Complex: Ternary complex of Cannabinoid receptor 2 with Guanine nucleotide-binding protein and Single-chain variable fragment
    • Protein or peptide: Guanine nucleotide-binding protein G(i) subunit alpha-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
    • Protein or peptide: Cannabinoid receptor 2Cannabinoid receptor type 2
    • Protein or peptide: scFv16
  • Ligand: 2-[(1R,2R,5R)-5-hydroxy-2-(3-hydroxypropyl)cyclohexyl]-5-(2-methyloctan-2-yl)phenol
Function / homology
Function and homology information


cannabinoid receptor activity / negative regulation of mast cell activation / negative regulation of synaptic transmission, GABAergic / negative regulation of action potential / Class A/1 (Rhodopsin-like receptors) / regulation of metabolic process / leukocyte chemotaxis / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex ...cannabinoid receptor activity / negative regulation of mast cell activation / negative regulation of synaptic transmission, GABAergic / negative regulation of action potential / Class A/1 (Rhodopsin-like receptors) / regulation of metabolic process / leukocyte chemotaxis / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / Adenylate cyclase inhibitory 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 / response to amphetamine / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / extrinsic component of cytoplasmic side of plasma membrane / Regulation of insulin secretion / G protein-coupled receptor binding / G-protein beta/gamma-subunit complex binding / 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 / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / 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 / adenylate cyclase-activating G protein-coupled receptor signaling pathway / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Sensory perception of sweet, bitter, and umami (glutamate) taste / response to peptide hormone / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / 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 / adenylate cyclase-activating dopamine receptor signaling pathway / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / sensory perception of taste / GPER1 signaling / GDP binding / G-protein beta-subunit binding / heterotrimeric G-protein complex / Inactivation, recovery and regulation of the phototransduction cascade / extracellular vesicle / G alpha (12/13) signalling events / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / retina development in camera-type eye / GTPase binding / Ca2+ pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / cell cortex / midbody / G alpha (i) signalling events / fibroblast proliferation / perikaryon / G alpha (s) signalling events / G alpha (q) signalling events / Ras protein signal transduction / cell population proliferation / response to lipopolysaccharide / Extra-nuclear estrogen signaling / immune response / cell cycle / inflammatory response / G protein-coupled receptor signaling pathway / cell division / lysosomal membrane / GTPase activity / centrosome / dendrite / synapse / protein-containing complex binding / GTP binding / nucleolus / magnesium ion binding / endoplasmic reticulum / signal transduction / extracellular exosome / nucleoplasm / membrane / plasma membrane / cytosol / cytoplasm
Similarity search - Function
Cannabinoid receptor type 2 / Cannabinoid receptor family / G-protein alpha subunit, group I / Serpentine type 7TM GPCR chemoreceptor Srsx / 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 ...Cannabinoid receptor type 2 / Cannabinoid receptor family / G-protein alpha subunit, group I / Serpentine type 7TM GPCR chemoreceptor Srsx / 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) / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Cannabinoid receptor 2 / 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)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.84 Å
AuthorsWu LJ / Hua T / Liu ZJ / Li XT / Chang H
Funding support China, 2 items
OrganizationGrant numberCountry
National Science Foundation (NSF, China)32022038 China
National Natural Science Foundation of China (NSFC)31870744 China
CitationJournal: Nat Commun / Year: 2023
Title: Structural basis of selective cannabinoid CB receptor activation.
Authors: Xiaoting Li / Hao Chang / Jara Bouma / Laura V de Paus / Partha Mukhopadhyay / Janos Paloczi / Mohammed Mustafa / Cas van der Horst / Sanjay Sunil Kumar / Lijie Wu / Yanan Yu / Richard J B H ...Authors: Xiaoting Li / Hao Chang / Jara Bouma / Laura V de Paus / Partha Mukhopadhyay / Janos Paloczi / Mohammed Mustafa / Cas van der Horst / Sanjay Sunil Kumar / Lijie Wu / Yanan Yu / Richard J B H N van den Berg / Antonius P A Janssen / Aron Lichtman / Zhi-Jie Liu / Pal Pacher / Mario van der Stelt / Laura H Heitman / Tian Hua /
Abstract: Cannabinoid CB receptor (CBR) agonists are investigated as therapeutic agents in the clinic. However, their molecular mode-of-action is not fully understood. Here, we report the discovery of LEI-102, ...Cannabinoid CB receptor (CBR) agonists are investigated as therapeutic agents in the clinic. However, their molecular mode-of-action is not fully understood. Here, we report the discovery of LEI-102, a CBR agonist, used in conjunction with three other CBR ligands (APD371, HU308, and CP55,940) to investigate the selective CBR activation by binding kinetics, site-directed mutagenesis, and cryo-EM studies. We identify key residues for CBR activation. Highly lipophilic HU308 and the endocannabinoids, but not the more polar LEI-102, APD371, and CP55,940, reach the binding pocket through a membrane channel in TM1-TM7. Favorable physico-chemical properties of LEI-102 enable oral efficacy in a chemotherapy-induced nephropathy model. This study delineates the molecular mechanism of CBR activation by selective agonists and highlights the role of lipophilicity in CBR engagement. This may have implications for GPCR drug design and sheds light on their activation by endogenous ligands.
History
DepositionSep 13, 2022-
Header (metadata) releaseMay 10, 2023-
Map releaseMay 10, 2023-
UpdateMay 10, 2023-
Current statusMay 10, 2023Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_34277.png

Downloads & links

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Map

FileDownload / File: emd_34277.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.04 Å
Density
Contour LevelBy AUTHOR: 0.17
Minimum - Maximum-0.0016759196 - 1.8889158
Average (Standard dev.)0.0009535074 (±0.02230435)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 266.24 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #1

Fileemd_34277_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_34277_half_map_2.map
Projections & Slices
AxesZYX

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Histogram

Histogram (log scale)

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Sample components

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Entire : Ternary complex of Cannabinoid receptor 2 with Guanine nucleotide...

EntireName: Ternary complex of Cannabinoid receptor 2 with Guanine nucleotide-binding protein and Single-chain variable fragment
Components
  • Complex: Ternary complex of Cannabinoid receptor 2 with Guanine nucleotide-binding protein and Single-chain variable fragment
    • Protein or peptide: Guanine nucleotide-binding protein G(i) subunit alpha-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
    • Protein or peptide: Cannabinoid receptor 2Cannabinoid receptor type 2
    • Protein or peptide: scFv16
  • Ligand: 2-[(1R,2R,5R)-5-hydroxy-2-(3-hydroxypropyl)cyclohexyl]-5-(2-methyloctan-2-yl)phenol

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Supramolecule #1: Ternary complex of Cannabinoid receptor 2 with Guanine nucleotide...

SupramoleculeName: Ternary complex of Cannabinoid receptor 2 with Guanine nucleotide-binding protein and Single-chain variable fragment
type: complex / ID: 1 / Chimera: Yes / Parent: 0 / Macromolecule list: #1-#5
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 140 kDa/nm

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Macromolecule #1: Guanine nucleotide-binding protein G(i) subunit alpha-1

MacromoleculeName: Guanine nucleotide-binding protein G(i) subunit alpha-1
type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 40.415031 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKSTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...String:
MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKSTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI PTQQDVLRTR VKTTGIVETH FTFKDLHFKM FDVGGQRSER KKWIHCFEGV TAIIFCVALS DYDLVLAEDE EM NRMHESM KLFDSICNNK WFTDTSIILF LNKKDLFEEK IKKSPLTICY PEYAGSNTYE EAAAYIQCQF EDLNKRKDTK EIY THFTCA TDTKNVQFVF DAVTDVIIKN NLKDCGLF

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Macromolecule #2: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

MacromoleculeName: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 37.41693 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL ...String:
MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL WDIETGQQTT TFTGHTGDVM SLSLAPDTRL FVSGACDASA KLWDVREGMC RQTFTGHESD INAICFFPNG NA FATGSDD ATCRLFDLRA DQELMTYSHD NIICGITSVS FSKSGRLLLA GYDDFNCNVW DALKADRAGV LAGHDNRVSC LGV TDDGMA VATGSWDSFL KIWN

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Macromolecule #3: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

MacromoleculeName: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 7.861143 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString:
MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L

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Macromolecule #4: Cannabinoid receptor 2

MacromoleculeName: Cannabinoid receptor 2 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 39.722715 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MEECWVTEIA NGSKDGLDSN PMKDYMILSG PQKTAVAVLC TLLGLLSALE NVAVLYLILS SHQLRRKPSY LFIGSLAGAD FLASVVFAC SFVNFHVFHG VDSKAVFLLK IGSVTMTFTA SVGSLLLTAI DRYLCLRYPP SYKALLTRGR ALVTLGIMWV L SALVSYLP ...String:
MEECWVTEIA NGSKDGLDSN PMKDYMILSG PQKTAVAVLC TLLGLLSALE NVAVLYLILS SHQLRRKPSY LFIGSLAGAD FLASVVFAC SFVNFHVFHG VDSKAVFLLK IGSVTMTFTA SVGSLLLTAI DRYLCLRYPP SYKALLTRGR ALVTLGIMWV L SALVSYLP LMGWTCCPRP CSELFPLIPN DYLLSWLLFI AFLFSGIIYT YGHVLWKAHQ HVASLSGHQD RQVPGMARMR LD VRLAKTL GLVLAVLLIC WFPVLALMAH SLATTLSDQV KKAFAFCSML CLINSMVNPV IYALRSGEIR SSAHHCLAHW KKC VRGLGS EAKEEAPRSS VTETEADGKI TPWPDSRDLD LSDC

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Macromolecule #5: scFv16

MacromoleculeName: scFv16 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 27.784896 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS ...String:
DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS NGNTYLYWFL QRPGQSPQLL IYRMSNLASG VPDRFSGSGS GTAFTLTISR LEAEDVGVYY CMQHLEYPLT FG AGTKLEL KAAAHHHHHH HH

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Macromolecule #6: 2-[(1R,2R,5R)-5-hydroxy-2-(3-hydroxypropyl)cyclohexyl]-5-(2-methy...

MacromoleculeName: 2-[(1R,2R,5R)-5-hydroxy-2-(3-hydroxypropyl)cyclohexyl]-5-(2-methyloctan-2-yl)phenol
type: ligand / ID: 6 / Number of copies: 1 / Formula: 9GF
Molecular weightTheoretical: 376.573 Da
Chemical component information

ChemComp-9GF:
2-[(1R,2R,5R)-5-hydroxy-2-(3-hydroxypropyl)cyclohexyl]-5-(2-methyloctan-2-yl)phenol / CP 55,940

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.5
GridModel: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 400 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 50.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Cs: 2.7 mm / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 105000
Specialist opticsEnergy filter - Name: GIF Quantum LS / Energy filter - Slit width: 20 eV
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
TemperatureMin: 70.0 K / Max: 70.0 K
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 1.5 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

6kpf

Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Algorithm: FOURIER SPACE / Resolution.type: BY AUTHOR / Resolution: 2.84 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 440292

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Atomic model buiding 1

Initial modelPDB ID:

6kpf

RefinementProtocol: RIGID BODY FIT / Overall B value: 68
Output model

PDB-8gur:
Cryo-EM structure of CP-CB2-G protein complex

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