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- PDB-6pt0: Cryo-EM structure of human cannabinoid receptor 2-Gi protein in c... -

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Basic information

Entry
Database: PDB / ID: 6pt0
TitleCryo-EM structure of human cannabinoid receptor 2-Gi protein in complex with agonist WIN 55,212-2
Components
  • (Guanine nucleotide-binding protein ...) x 3
  • Cannabinoid receptor 2Cannabinoid receptor type 2
  • scFv16
KeywordsMEMBRANE PROTEIN / GPCR complex / WIN55 / 212-2
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 / cellular response to forskolin / regulation of mitotic spindle organization / extrinsic component of cytoplasmic side of plasma membrane / response to amphetamine / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / Regulation of insulin secretion / 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 / adenylate cyclase-activating G protein-coupled receptor signaling pathway / 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 / photoreceptor disc membrane / response to peptide hormone / 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 / G-protein beta-subunit binding / GDP 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) / retina development in camera-type eye / GTPase binding / phospholipase C-activating G protein-coupled receptor signaling pathway / Ca2+ pathway / cell cortex / midbody / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / G alpha (q) signalling events / perikaryon / cell population proliferation / Ras protein signal transduction / response to lipopolysaccharide / Extra-nuclear estrogen signaling / inflammatory response / immune response / G protein-coupled receptor signaling pathway / cell cycle / lysosomal membrane / cell division / GTPase activity / centrosome / synapse / dendrite / protein-containing complex binding / nucleolus / GTP binding / 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 / Transducin (heterotrimeric G protein), gamma chain / G Protein Gi Gamma 2 / 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 ...Cannabinoid receptor type 2 / Cannabinoid receptor family / Transducin (heterotrimeric G protein), gamma chain / G Protein Gi Gamma 2 / 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 / 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) / Few Secondary Structures / Irregular / G-protein beta WD-40 repeat / 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 / Immunoglobulins / Up-down Bundle / Immunoglobulin-like / Sandwich / P-loop containing nucleoside triphosphate hydrolase / Mainly Beta / Mainly Alpha
Similarity search - Domain/homology
CHOLESTEROL / PALMITIC ACID / Chem-WI5 / 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)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsXu, T.H. / Xing, C. / Zhuang, Y. / Feng, Z. / Zhou, X.E. / Chen, M. / Wang, L. / Meng, X. / Xue, Y. / Wang, J. ...Xu, T.H. / Xing, C. / Zhuang, Y. / Feng, Z. / Zhou, X.E. / Chen, M. / Wang, L. / Meng, X. / Xue, Y. / Wang, J. / Liu, H. / McGuire, T. / Zhao, G. / Melcher, K. / Zhang, C. / Xu, H.E. / Xie, X.Q.
Funding support United States, China, 6items
OrganizationGrant numberCountry
National Institutes of Health/National Institute on Drug Abuse (NIH/NIDA)P30 DA035778A1 United States
National Institutes of Health/National Institute on Drug Abuse (NIH/NIDA)R01 DA025612 United States
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)1R35GM128641 United States
Ministry of Science and Technology (MoST, China)XDB08020303 China
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)1R01GM127710 United States
Jay and Betty Van Andel Foundation United States
CitationJournal: Cell / Year: 2020
Title: Cryo-EM Structure of the Human Cannabinoid Receptor CB2-G Signaling Complex.
Authors: Changrui Xing / Youwen Zhuang / Ting-Hai Xu / Zhiwei Feng / X Edward Zhou / Maozi Chen / Lei Wang / Xing Meng / Ying Xue / Junmei Wang / Heng Liu / Terence Francis McGuire / Gongpu Zhao / ...Authors: Changrui Xing / Youwen Zhuang / Ting-Hai Xu / Zhiwei Feng / X Edward Zhou / Maozi Chen / Lei Wang / Xing Meng / Ying Xue / Junmei Wang / Heng Liu / Terence Francis McGuire / Gongpu Zhao / Karsten Melcher / Cheng Zhang / H Eric Xu / Xiang-Qun Xie /
Abstract: Drugs selectively targeting CB2 hold promise for treating neurodegenerative disorders, inflammation, and pain while avoiding psychotropic side effects mediated by CB1. The mechanisms underlying CB2 ...Drugs selectively targeting CB2 hold promise for treating neurodegenerative disorders, inflammation, and pain while avoiding psychotropic side effects mediated by CB1. The mechanisms underlying CB2 activation and signaling are poorly understood but critical for drug design. Here we report the cryo-EM structure of the human CB2-G signaling complex bound to the agonist WIN 55,212-2. The 3D structure reveals the binding mode of WIN 55,212-2 and structural determinants for distinguishing CB2 agonists from antagonists, which are supported by a pair of rationally designed agonist and antagonist. Further structural analyses with computational docking results uncover the differences between CB2 and CB1 in receptor activation, ligand recognition, and G coupling. These findings are expected to facilitate rational structure-based discovery of drugs targeting the cannabinoid system.
History
DepositionJul 14, 2019Deposition site: RCSB / Processing site: RCSB
Revision 1.0Feb 12, 2020Provider: repository / Type: Initial release
Revision 1.1Mar 4, 2020Group: Database references / Category: citation / Item: _citation.journal_volume / _citation.page_first

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Structure visualization

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  • Deposited structure unit
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Assembly

Deposited unit
R: Cannabinoid receptor 2
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
E: scFv16
hetero molecules


Theoretical massNumber of molelcules
Total (without water)158,67814
Polymers155,6795
Non-polymers2,9999
Water0
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area17270 Å2
ΔGint-62 kcal/mol
Surface area59290 Å2

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Components

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Guanine nucleotide-binding protein ... , 3 types, 3 molecules ABC

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


Mass: 40414.047 Da / Num. of mol.: 1 / Mutation: S47N/G203A/E245A/A326S
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNAI1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P63096
#3: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 39151.855 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P62873
#4: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / G gamma-I


Mass: 7563.750 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNG2 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P59768

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Protein / Antibody , 2 types, 2 molecules RE

#1: Protein Cannabinoid receptor 2 / Cannabinoid receptor type 2 / hCB2 / CX5


Mass: 40764.820 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CNR2, CB2A, CB2B / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P34972
#5: Antibody scFv16


Mass: 27784.896 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) synthetic construct (others) / Production host: Escherichia coli (E. coli)

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Non-polymers , 3 types, 9 molecules

#6: Chemical ChemComp-WI5 / {(3R)-5-methyl-3-[(morpholin-4-yl)methyl]-2,3-dihydro[1,4]oxazino[2,3,4-hi]indol-6-yl}(naphthalen-1-yl)methanone / WIN 55,212-2


Mass: 426.507 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C27H26N2O3 / Feature type: SUBJECT OF INVESTIGATION / Comment: agonist*YM
#7: Chemical
ChemComp-PLM / PALMITIC ACID / Palmitic acid


Mass: 256.424 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C16H32O2
#8: Chemical
ChemComp-CLR / CHOLESTEROL / Cholesterol


Mass: 386.654 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C27H46O

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Details

Has ligand of interestY

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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: human cannabinoid receptor 2-Gi protein / Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT
Molecular weightUnits: MEGADALTONS / Experimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.2
SpecimenConc.: 7 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Details: Cryo-EM structure of human cannabinoid receptor 2-Gi protein in complex agonist WIN 55,212-2
Specimen supportGrid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 281 K

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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 FIELDBright-field microscopy / Cs: 2.7 mm
Specimen holderCryogen: NITROGEN
Image recordingAverage exposure time: 8 sec. / Electron dose: 2.08 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of real images: 8810

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Processing

SoftwareName: PHENIX / Version: 1.13_2998: / Classification: refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 1590810
3D reconstructionResolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 721844 / Symmetry type: POINT

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