[English] 日本語
![](img/lk-miru.gif)
- EMDB-32268: Cryo-EM structure of the ghrelin-bound human ghrelin receptor-Go ... -
+
Open data
-
Basic information
Entry | Database: EMDB / ID: EMD-32268 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Title | Cryo-EM structure of the ghrelin-bound human ghrelin receptor-Go complex | |||||||||
![]() | ||||||||||
![]() |
| |||||||||
Function / homology | ![]() growth hormone secretagogue receptor activity / regulation of hindgut contraction / ghrelin receptor binding / positive regulation of bone development / positive regulation of gastric mucosal blood circulation / regulation of growth hormone secretion / negative regulation of locomotion / growth hormone-releasing hormone receptor activity / cortisol secretion / positive regulation of small intestinal transit ...growth hormone secretagogue receptor activity / regulation of hindgut contraction / ghrelin receptor binding / positive regulation of bone development / positive regulation of gastric mucosal blood circulation / regulation of growth hormone secretion / negative regulation of locomotion / growth hormone-releasing hormone receptor activity / cortisol secretion / positive regulation of small intestinal transit / growth hormone-releasing hormone activity / negative regulation of circadian sleep/wake cycle, REM sleep / positive regulation of circadian sleep/wake cycle, non-REM sleep / negative regulation of locomotion involved in locomotory behavior / regulation of response to food / regulation of gastric motility / guanyl nucleotide binding / regulation of transmission of nerve impulse / gastric acid secretion / positive regulation of corticotropin secretion / response to follicle-stimulating hormone / positive regulation of cortisol secretion / growth hormone secretion / ghrelin secretion / positive regulation of growth rate / positive regulation of eating behavior / negative regulation of norepinephrine secretion / positive regulation of appetite / positive regulation of small intestine smooth muscle contraction / negative regulation of macrophage apoptotic process / adult feeding behavior / positive regulation of growth hormone secretion / negative regulation of appetite / positive regulation of growth hormone receptor signaling pathway / positive regulation of multicellular organism growth / actin polymerization or depolymerization / vesicle docking involved in exocytosis / cellular response to thyroid hormone stimulus / response to growth hormone / positive regulation of synapse assembly / cartilage development / positive regulation of insulin-like growth factor receptor signaling pathway / regulation of neurotransmitter receptor localization to postsynaptic specialization membrane / response to food / positive regulation of vascular endothelial cell proliferation / negative regulation of interleukin-1 beta production / cellular response to insulin-like growth factor stimulus / regulation of postsynapse organization / response to L-glutamate / regulation of synapse assembly / G protein-coupled dopamine receptor signaling pathway / regulation of heart contraction / positive regulation of fatty acid metabolic process / postsynaptic modulation of chemical synaptic transmission / response to dexamethasone / protein tyrosine kinase activator activity / positive regulation of sprouting angiogenesis / dendrite development / negative regulation of endothelial cell proliferation / positive regulation of insulin secretion involved in cellular response to glucose stimulus / peptide hormone binding / negative regulation of interleukin-6 production / negative regulation of tumor necrosis factor production / decidualization / mu-type opioid receptor binding / corticotropin-releasing hormone receptor 1 binding / Synthesis, secretion, and deacylation of Ghrelin / negative regulation of insulin secretion / G protein-coupled serotonin receptor binding / response to electrical stimulus / synapse assembly / positive regulation of adipose tissue development / excitatory postsynaptic potential / hormone-mediated signaling pathway / Peptide ligand-binding receptors / negative regulation of angiogenesis / insulin-like growth factor receptor signaling pathway / response to hormone / synaptic membrane / locomotory behavior / G protein-coupled receptor activity / muscle contraction / G protein-coupled receptor binding / G-protein beta/gamma-subunit complex binding / Schaffer collateral - CA1 synapse / 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 / positive regulation of insulin secretion / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / ADP signalling through P2Y purinoceptor 12 Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.8 Å | |||||||||
![]() | Qin J / Ming Q / Ji S / Mao C / Shen D / Zhang Y | |||||||||
Funding support | 1 items
| |||||||||
![]() | ![]() Title: 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. | |||||||||
History |
|
-
Structure visualization
Movie |
![]() |
---|---|
Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
-
Downloads & links
-EMDB archive
Map data | ![]() | 25.3 MB | ![]() | |
---|---|---|---|---|
Header (meta data) | ![]() ![]() | 19.3 KB 19.3 KB | Display Display | ![]() |
Images | ![]() | 82.8 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 472.5 KB | Display | ![]() |
---|---|---|---|---|
Full document | ![]() | 472 KB | Display | |
Data in XML | ![]() | 5.5 KB | Display | |
Data in CIF | ![]() | 6.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7w2zMC ![]() 7f83C M: atomic model generated by this map C: citing same article ( |
---|---|
Similar structure data |
-
Links
EMDB pages | ![]() ![]() |
---|---|
Related items in Molecule of the Month |
-
Map
File | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Voxel size | X=Y=Z: 1.014 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
|
-Supplemental data
-
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 |
---|---|
![]() | single particle reconstruction |
Aggregation state | particle |
-
Sample preparation
Buffer | pH: 7.5 |
---|---|
Vitrification | Cryogen name: ETHANE |
-
Electron microscopy
Microscope | FEI TITAN KRIOS |
---|---|
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: ![]() |
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 |
-
Image processing
Startup model | Type of model: PDB ENTRY PDB model - PDB ID: |
---|---|
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 |