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Yorodumi- EMDB-32268: Cryo-EM structure of the ghrelin-bound human ghrelin receptor-Go ... -
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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-32268 | |||||||||
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| Title | Cryo-EM structure of the ghrelin-bound human ghrelin receptor-Go complex | |||||||||
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| Function / homology | Function and homology informationpositive regulation of bone development / positive regulation of gastric mucosal blood circulation / ghrelin receptor binding / negative regulation of locomotion / cortisol secretion / growth hormone secretagogue receptor activity / regulation of hindgut contraction / growth hormone-releasing hormone activity / negative regulation of circadian sleep/wake cycle, REM sleep / regulation of growth hormone secretion ...positive regulation of bone development / positive regulation of gastric mucosal blood circulation / ghrelin receptor binding / negative regulation of locomotion / cortisol secretion / growth hormone secretagogue receptor activity / regulation of hindgut contraction / growth hormone-releasing hormone activity / negative regulation of circadian sleep/wake cycle, REM sleep / regulation of growth hormone secretion / positive regulation of small intestinal transit / regulation of response to food / negative regulation of locomotion involved in locomotory behavior / growth hormone-releasing hormone receptor activity / regulation of gastric motility / response to follicle-stimulating hormone / regulation of transmission of nerve impulse / positive regulation of circadian sleep/wake cycle, non-REM sleep / positive regulation of cortisol secretion / positive regulation of corticotropin secretion / positive regulation of growth rate / ghrelin secretion / positive regulation of appetite / gastric acid secretion / growth hormone secretion / negative regulation of norepinephrine secretion / positive regulation of small intestine smooth muscle contraction / negative regulation of macrophage apoptotic process / neuronal dense core vesicle lumen / positive regulation of eating behavior / adult feeding behavior / positive regulation of growth hormone secretion / positive regulation of growth hormone receptor signaling pathway / negative regulation of appetite / mu-type opioid receptor binding / corticotropin-releasing hormone receptor 1 binding / actin polymerization or depolymerization / positive regulation of multicellular organism growth / cellular response to thyroid hormone stimulus / cartilage development / response to growth hormone / vesicle docking involved in exocytosis / regulation of postsynapse organization / positive regulation of insulin-like growth factor receptor signaling pathway / response to L-glutamate / positive regulation of synapse assembly / positive regulation of vascular endothelial cell proliferation / G protein-coupled dopamine receptor signaling pathway / negative regulation of interleukin-1 beta production / response to food / positive regulation of fatty acid metabolic process / response to dexamethasone / cellular response to insulin-like growth factor stimulus / regulation of synapse assembly / regulation of heart contraction / positive regulation of sprouting angiogenesis / parallel fiber to Purkinje cell synapse / negative regulation of endothelial cell proliferation / regulation of neurotransmitter receptor localization to postsynaptic specialization membrane / dendrite development / decidualization / peptide hormone binding / negative regulation of interleukin-6 production / protein tyrosine kinase activator activity / response to electrical stimulus / negative regulation of tumor necrosis factor production / Synthesis, secretion, and deacylation of Ghrelin / positive regulation of insulin secretion involved in cellular response to glucose stimulus / postsynaptic modulation of chemical synaptic transmission / synapse assembly / response to hormone / hormone-mediated signaling pathway / positive regulation of adipose tissue development / adenylate cyclase regulator activity / G protein-coupled serotonin receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / insulin-like growth factor receptor signaling pathway / muscle contraction / Peptide ligand-binding receptors / synaptic membrane / negative regulation of angiogenesis / excitatory postsynaptic potential / locomotory behavior / negative regulation of insulin secretion / G protein-coupled receptor binding / G protein-coupled receptor activity / positive regulation of insulin secretion / GABA-ergic synapse / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / negative regulation of inflammatory response / response to estrogen / G-protein beta/gamma-subunit complex binding / Schaffer collateral - CA1 synapse / Olfactory Signaling Pathway / Activation of the phototransduction cascade / glucose metabolic process / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / cellular response to insulin stimulus Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) / synthetic construct (others) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 2.8 Å | |||||||||
Authors | Qin J / Ming Q / Ji S / Mao C / Shen D / Zhang Y | |||||||||
| Funding support | 1 items
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Citation | Journal: Nat Commun / Year: 2022Title: Molecular mechanism of agonism and inverse agonism in ghrelin receptor. Authors: Jiao Qin / Ye Cai / Zheng Xu / Qianqian Ming / Su-Yu Ji / Chao Wu / Huibing Zhang / Chunyou Mao / Dan-Dan Shen / Kunio Hirata / Yanbin Ma / Wei Yan / Yan Zhang / Zhenhua Shao / ![]() Abstract: Much effort has been invested in the investigation of the structural basis of G protein-coupled receptors (GPCRs) activation. Inverse agonists, which can inhibit GPCRs with constitutive activity, are ...Much effort has been invested in the investigation of the structural basis of G protein-coupled receptors (GPCRs) activation. Inverse agonists, which can inhibit GPCRs with constitutive activity, are considered useful therapeutic agents, but the molecular mechanism of such ligands remains insufficiently understood. Here, we report a crystal structure of the ghrelin receptor bound to the inverse agonist PF-05190457 and a cryo-electron microscopy structure of the active ghrelin receptor-Go complex bound to the endogenous agonist ghrelin. Our structures reveal a distinct binding mode of the inverse agonist PF-05190457 in the ghrelin receptor, different from the binding mode of agonists and neutral antagonists. Combining the structural comparisons and cellular function assays, we find that a polar network and a notable hydrophobic cluster are required for receptor activation and constitutive activity. Together, our study provides insights into the detailed mechanism of ghrelin receptor binding to agonists and inverse agonists, and paves the way to design specific ligands targeting ghrelin receptors. | |||||||||
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Structure visualization
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
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Downloads & links
-EMDB archive
| Map data | emd_32268.map.gz | 25.3 MB | EMDB map data format | |
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| Header (meta data) | emd-32268-v30.xml emd-32268.xml | 19.3 KB 19.3 KB | Display Display | EMDB header |
| Images | emd_32268.png | 82.8 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-32268 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-32268 | HTTPS FTP |
-Validation report
| Summary document | emd_32268_validation.pdf.gz | 472.5 KB | Display | EMDB validaton report |
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| Full document | emd_32268_full_validation.pdf.gz | 472 KB | Display | |
| Data in XML | emd_32268_validation.xml.gz | 5.5 KB | Display | |
| Data in CIF | emd_32268_validation.cif.gz | 6.2 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-32268 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-32268 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 7w2zMC ![]() 7f83C M: atomic model generated by this map C: citing same article ( |
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| Similar structure data |
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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_32268.map.gz / Format: CCP4 / Size: 27 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: 1.014 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
+Entire : Cryo-EM structure of the ghrelin-bound human ghrelin receptor-Go ...
+Supramolecule #1: Cryo-EM structure of the ghrelin-bound human ghrelin receptor-Go ...
+Supramolecule #2: Guanine nucleotide-binding protein G(o) subunit alpha, Growth hor...
+Supramolecule #3: Guanine nucleotide-binding protein
+Supramolecule #4: ScFv16
+Supramolecule #5: Appetite-regulating hormone
+Macromolecule #1: Guanine nucleotide-binding protein G(o) subunit alpha
+Macromolecule #2: Growth hormone secretagogue receptor type 1
+Macromolecule #3: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
+Macromolecule #4: ScFv16
+Macromolecule #5: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
+Macromolecule #6: Appetite-regulating hormone
+Macromolecule #7: CHOLESTEROL
-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 | FEI TITAN KRIOS |
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| Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 62.24 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.5 µm |
| 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 | Resolution.type: BY AUTHOR / Resolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 230306 |
| Initial angle assignment | Type: RANDOM ASSIGNMENT |
| Final angle assignment | Type: MAXIMUM LIKELIHOOD |
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