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Open data
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Basic information
| Entry | ![]() | |||||||||
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| Title | Cannabinoid Receptor 1-Gi Complex | |||||||||
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Keywords | Cannabinoid Receptor 1 / GPCR / membrane protein / active / MEMBRANE PROTEIN-IMMUNE SYSTEM complex | |||||||||
| Function / homology | Function and homology informationcannabinoid signaling pathway / retrograde trans-synaptic signaling by endocannabinoid / cannabinoid receptor activity / regulation of presynaptic cytosolic calcium ion concentration / Class A/1 (Rhodopsin-like receptors) / axonal fasciculation / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / T cell migration ...cannabinoid signaling pathway / retrograde trans-synaptic signaling by endocannabinoid / cannabinoid receptor activity / regulation of presynaptic cytosolic calcium ion concentration / Class A/1 (Rhodopsin-like receptors) / axonal fasciculation / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / 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 / adenylate cyclase-inhibiting serotonin receptor signaling pathway / G protein-coupled serotonin receptor binding / cellular response to forskolin / 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 / GABA-ergic synapse / G-protein beta/gamma-subunit complex binding / centriolar satellite / 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 / G beta:gamma signalling through CDC42 / Prostacyclin signalling through prostacyclin receptor / 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 / Sensory perception of sweet, bitter, and umami (glutamate) taste / Glucagon-type ligand receptors / GDP binding / 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 / glucose homeostasis / 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 / actin cytoskeleton / sperm principal piece / Thrombin signalling through proteinase activated receptors (PARs) / signaling receptor complex adaptor activity / adenylate cyclase-activating G protein-coupled receptor signaling pathway / growth cone / retina development in camera-type eye / GTPase binding / G protein activity / fibroblast proliferation / presynaptic membrane / Ca2+ pathway / midbody / 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 / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / Ras protein signal transduction / mitochondrial outer membrane / Extra-nuclear estrogen signaling / cell population proliferation / ciliary basal body / membrane raft / G protein-coupled receptor signaling pathway / cell division / lysosomal membrane / GTPase activity / centrosome Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) / ![]() | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 2.42 Å | |||||||||
Authors | Liao Y / Zhang Y | |||||||||
| Funding support | 1 items
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Citation | Journal: Cell / Year: 2026Title: Rational design of G-biased CB1 agonist with reduced side effects. Authors: Yu-Ying Liao / Jinxin Che / Yun-Tao Gao / Jianheng Xue / Linjie Li / Lin-Lin Wu / Jia-Xue Hu / Meng-Ting Hu / Linghua Xie / Huibing Zhang / Dan-Dan Shen / Yingjun Dong / Shaokun Zang / Na ...Authors: Yu-Ying Liao / Jinxin Che / Yun-Tao Gao / Jianheng Xue / Linjie Li / Lin-Lin Wu / Jia-Xue Hu / Meng-Ting Hu / Linghua Xie / Huibing Zhang / Dan-Dan Shen / Yingjun Dong / Shaokun Zang / Na Zhang / Hao Wang / Yan Zhang / Xiaowu Dong / Xiao-Ming Li / ![]() Abstract: The cannabinoid receptor 1 (CB1) has emerged as a promising candidate for next-generation non-opioid therapies. However, the development of therapeutics targeting CB1 has been consistently hindered ...The cannabinoid receptor 1 (CB1) has emerged as a promising candidate for next-generation non-opioid therapies. However, the development of therapeutics targeting CB1 has been consistently hindered by significant adverse effects. Here, through structure-activity relationship analyses focused on biased signaling, we rationally design two G-biased CB1 agonists, LZD503 and LZD505. Our design strategy employed structural spatial tuning of the agonist scaffold to disrupt specific molecular interactions and minimize steric conflicts with critical tip residues within the ligand-binding pocket, thereby promoting preferential G-pathway signaling. Cryo-electron microscopy structures of the CB1-G-protein complexes bound to these designed agonists confirmed that their anticipated conformational poses favored G-biased signaling. Both designed compounds demonstrated promising results by alleviating pain and mitigating unwanted responses in mice. The elucidated CB1 complex structures and the resulting insights establish a comprehensive framework for the structure-guided development of innovative CB1-targeted analgesics with reduced adverse effect profiles. | |||||||||
| History |
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_69006.map.gz | 41.1 MB | EMDB map data format | |
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| Header (meta data) | emd-69006-v30.xml emd-69006.xml | 21.1 KB 21.1 KB | Display Display | EMDB header |
| Images | emd_69006.png | 39.4 KB | ||
| Filedesc metadata | emd-69006.cif.gz | 6.9 KB | ||
| Others | emd_69006_half_map_1.map.gz emd_69006_half_map_2.map.gz | 49.6 MB 49.6 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-69006 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-69006 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 23iwMC ![]() 23ivC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_69006.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 0.93 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Half map: #2
| File | emd_69006_half_map_1.map | ||||||||||||
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| Density Histograms |
-Half map: #1
| File | emd_69006_half_map_2.map | ||||||||||||
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| Density Histograms |
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Sample components
-Entire : Cannabinoid receptor 1
| Entire | Name: Cannabinoid receptor 1 |
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| Components |
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-Supramolecule #1: Cannabinoid receptor 1
| Supramolecule | Name: Cannabinoid receptor 1 / type: organelle_or_cellular_component / ID: 1 / Parent: 0 / Macromolecule list: #1-#5 |
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| Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: Cannabinoid receptor 1
| Macromolecule | Name: Cannabinoid receptor 1 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 56.612051 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: MKTIIALSYI FCLVFADYKD DDDKLEVLFQ GPMKSILDGL ADTTFRTITT DLLYVGSNDI QYEDIKGDMA SKLGYFPQKF PLTSFRGSP FQEKMTAGDN PQLVPADQVN ITEFYNKSLS SFKENEENIQ CGENFMDIEC FMVLNPSQQL AIAVLSLTLG T FTVLENLL ...String: MKTIIALSYI FCLVFADYKD DDDKLEVLFQ GPMKSILDGL ADTTFRTITT DLLYVGSNDI QYEDIKGDMA SKLGYFPQKF PLTSFRGSP FQEKMTAGDN PQLVPADQVN ITEFYNKSLS SFKENEENIQ CGENFMDIEC FMVLNPSQQL AIAVLSLTLG T FTVLENLL VLCVILHSRS LRCRPSYHFI GSLAVADLLG SVIFVYSFID FHVFHRKDSR NVFLFKLGGV TASFTASVGS LF LTAIDRY ISIHRPLAYK RIVTRPKAVV AFCLMWTIAI VIAVLPLLGW NCEKLQSVCS DIFPHIDETY LMFWIGVTSV LLL FIVYAY MYILWKAHSH AVRMIQRGTQ KSIIIHTSED GKVQVTRPDQ ARMDIRLAKT LVLILVVLII CWGPLLAIMV YDVF GKMNK LIKTVFAFCS MLCLLNSTVN PIIYALRSKD LRHAFRSMFP SCEGTAQPLD NSMGDSDCLH KHANNAASVH RAAES CIKS TVKIAKVTMS VSTDTSAEAL UniProtKB: Cannabinoid receptor 1 |
-Macromolecule #2: 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: 2 / Number of copies: 1 / Enantiomer: LEVO EC number: Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 40.414047 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKNTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...String: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKNTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI PTQQDVLRTR VKTTGIVETH FTFKDLHFKM FDVGAQRSER KKWIHCFEGV TAIIFCVALS DYDLVLAEDE EM NRMHASM KLFDSICNNK WFTDTSIILF LNKKDLFEEK IKKSPLTICY PEYAGSNTYE EAAAYIQCQF EDLNKRKDTK EIY THFTCS TDTKNVQFVF DAVTDVIIKN NLKDCGLF UniProtKB: Guanine nucleotide-binding protein G(i) subunit alpha-1 |
-Macromolecule #3: 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: 3 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 37.285734 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: SELDQLRQEA EQLKNQIRDA RKACADATLS QITNNIDPVG RIQMRTRRTL RGHLAKIYAM HWGTDSRLLV SASQDGKLII WDSYTTNKV HAIPLRSSWV MTCAYAPSGN YVACGGLDNI CSIYNLKTRE GNVRVSRELA GHTGYLSCCR FLDDNQIVTS S GDTTCALW ...String: SELDQLRQEA EQLKNQIRDA RKACADATLS QITNNIDPVG RIQMRTRRTL RGHLAKIYAM HWGTDSRLLV SASQDGKLII WDSYTTNKV HAIPLRSSWV MTCAYAPSGN YVACGGLDNI CSIYNLKTRE GNVRVSRELA GHTGYLSCCR FLDDNQIVTS S GDTTCALW DIETGQQTTT FTGHTGDVMS LSLAPDTRLF VSGACDASAK LWDVREGMCR QTFTGHESDI NAICFFPNGN AF ATGSDDA TCRLFDLRAD QELMTYSHDN IICGITSVSF SKSGRLLLAG YDDFNCNVWD ALKADRAGVL AGHDNRVSCL GVT DDGMAV ATGSWDSFLK IWN UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-Macromolecule #4: 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: 4 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| 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 #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: 26.610615 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 KGS |
-Macromolecule #6: methyl (2~{S},3~{R})-2-[[1-[(4-fluorophenyl)methyl]indazol-3-yl]c...
| Macromolecule | Name: methyl (2~{S},3~{R})-2-[[1-[(4-fluorophenyl)methyl]indazol-3-yl]carbonylamino]-3-oxidanyl-butanoate type: ligand / ID: 6 / Number of copies: 1 / Formula: A1E5T |
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| Molecular weight | Theoretical: 385.389 Da |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.5 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | TFS KRIOS |
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| Image recording | Film or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 52.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 1.5 µm / Nominal defocus min: 0.7000000000000001 µm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi




Keywords
Homo sapiens (human)
Authors
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Z (Sec.)
Y (Row.)
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Processing
FIELD EMISSION GUN
