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Title | Cryo-EM structure of CB2-G protein complex | |||||||||
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![]() | GPCR / G protein / cryo-EM / membrane protein / STRUCTURAL PROTEIN | |||||||||
Function / homology | ![]() trans-synaptic signaling by endocannabinoid, modulating synaptic transmission / 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) / leukocyte chemotaxis / extrinsic component of cytoplasmic side of plasma membrane / regulation of metabolic process / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger ...trans-synaptic signaling by endocannabinoid, modulating synaptic transmission / 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) / leukocyte chemotaxis / extrinsic component of cytoplasmic side of plasma membrane / regulation of metabolic process / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / positive regulation of protein localization to cell cortex / Adenylate cyclase inhibitory pathway / T cell migration / D2 dopamine receptor binding / response to prostaglandin E / G protein-coupled serotonin receptor binding / adenylate cyclase regulator activity / adenylate cyclase-inhibiting serotonin receptor signaling pathway / cellular response to forskolin / response to amphetamine / regulation of mitotic spindle organization / Regulation of insulin secretion / positive regulation of cholesterol biosynthetic process / G protein-coupled receptor binding / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / response to peptide hormone / G-protein beta/gamma-subunit complex binding / centriolar satellite / 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 / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / 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 / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / GDP binding / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / adenylate cyclase-activating dopamine receptor signaling pathway / 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 / sensory perception of taste / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / G protein activity / GTPase binding / Ca2+ pathway / retina development in camera-type eye / midbody / cell cortex / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / fibroblast proliferation / G alpha (i) signalling events / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / perikaryon / response to lipopolysaccharide / postsynaptic membrane / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell population proliferation / ciliary basal body / immune response / G protein-coupled receptor signaling pathway / inflammatory response / lysosomal membrane / cell division / GTPase activity / synapse / centrosome / dendrite / protein-containing complex binding / GTP binding Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.08 Å | |||||||||
![]() | Wu LJ / Hua T / Liu ZJ / Li XT / Chang H | |||||||||
Funding support | ![]()
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![]() | ![]() 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 |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 25.5 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 22.6 KB 22.6 KB | Display Display | ![]() |
Images | ![]() | 24.4 KB | ||
Filedesc metadata | ![]() | 7.4 KB | ||
Others | ![]() ![]() | 25 MB 25 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8guqMC ![]() 8gurC ![]() 8gusC ![]() 8gutC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.38667 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #1
File | emd_34276_half_map_1.map | ||||||||||||
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Density Histograms |
-Half map: #2
File | emd_34276_half_map_2.map | ||||||||||||
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Density Histograms |
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Sample components
-Entire : Ternary complex of Cannabinoid receptor 2 with Guanine nucleotide...
Entire | Name: Ternary complex of Cannabinoid receptor 2 with Guanine nucleotide-binding protein and Single-chain variable fragment |
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Components |
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-Supramolecule #1: Ternary complex of Cannabinoid receptor 2 with Guanine nucleotide...
Supramolecule | Name: Ternary complex of Cannabinoid receptor 2 with Guanine nucleotide-binding protein and Single-chain variable fragment type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5 |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 140 kDa/nm |
-Macromolecule #1: Guanine nucleotide-binding protein G(i) subunit alpha-1
Macromolecule | Name: Guanine nucleotide-binding protein G(i) subunit alpha-1 type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 40.415031 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: 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 UniProtKB: Guanine nucleotide-binding protein G(i) subunit alpha-1 |
-Macromolecule #2: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
Macromolecule | Name: 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 |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 37.41693 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: 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 UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-Macromolecule #3: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
Macromolecule | Name: 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 |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 7.861143 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 |
-Macromolecule #4: Cannabinoid receptor 2
Macromolecule | Name: Cannabinoid receptor 2 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 39.722715 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: 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 UniProtKB: Cannabinoid receptor 2 |
-Macromolecule #5: scFv16
Macromolecule | Name: scFv16 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 27.784896 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: 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 |
-Macromolecule #6: Olorinab
Macromolecule | Name: Olorinab / type: ligand / ID: 6 / Number of copies: 1 / Formula: KNF |
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Molecular weight | Theoretical: 357.407 Da |
Chemical component information | ![]() ChemComp-KNF: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.5 |
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Grid | Model: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 400 / Support film - Material: CARBON / Support film - topology: HOLEY |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Temperature | Min: 70.0 K / Max: 70.0 K |
Specialist optics | Energy filter - Name: GIF Quantum LS / Energy filter - Slit width: 20 eV |
Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 1.5 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 50.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 105000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: PDB ENTRY PDB model - PDB ID: |
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Final reconstruction | Applied symmetry - Point group: C1 (asymmetric) / Algorithm: FOURIER SPACE / Resolution.type: BY AUTHOR / Resolution: 3.08 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 1152146 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |