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Open data
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Basic information
Entry | Database: PDB / ID: 7f9y | |||||||||
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Title | ghrelin-bound ghrelin receptor in complex with Gq | |||||||||
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![]() | MEMBRANE PROTEIN / ghrelin / GPCR / Gq | |||||||||
Function / homology | ![]() ghrelin receptor binding / positive regulation of bone development / positive regulation of gastric mucosal blood circulation / negative regulation of locomotion / 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 / regulation of response to food ...ghrelin receptor binding / positive regulation of bone development / positive regulation of gastric mucosal blood circulation / negative regulation of locomotion / 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 / regulation of response to food / regulation of gastric motility / regulation of transmission of nerve impulse / gastric acid secretion / positive regulation of corticotropin secretion / positive regulation of cortisol secretion / growth hormone secretion / positive regulation of growth rate / positive regulation of eating behavior / positive regulation of appetite / positive regulation of small intestine smooth muscle contraction / adult feeding behavior / positive regulation of growth hormone secretion / positive regulation of growth hormone receptor signaling pathway / positive regulation of multicellular organism growth / actin polymerization or depolymerization / positive regulation of synapse assembly / cartilage development / negative regulation of interleukin-1 beta production / positive regulation of vascular endothelial cell proliferation / regulation of postsynapse organization / postsynaptic modulation of chemical synaptic transmission / 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 / negative regulation of interleukin-6 production / negative regulation of tumor necrosis factor production / decidualization / Synthesis, secretion, and deacylation of Ghrelin / negative regulation of insulin secretion / response to electrical stimulus / synapse assembly / positive regulation of adipose tissue development / excitatory postsynaptic potential / hormone-mediated signaling pathway / negative regulation of angiogenesis / Peptide ligand-binding receptors / response to hormone / G protein-coupled receptor binding / Schaffer collateral - CA1 synapse / 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 activation / positive regulation of insulin secretion / 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 / 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 / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / negative regulation of inflammatory response / 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 / response to estrogen / 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 / glucose metabolic process / G-protein beta-subunit 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) / GTPase binding / retina development in camera-type eye / phospholipase C-activating G protein-coupled receptor signaling pathway / Ca2+ pathway / positive regulation of cold-induced thermogenesis / regulation of cell population proliferation / G alpha (i) signalling events Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.9 Å | |||||||||
![]() | Wang, Y. / Zhuang, Y. / Xu, P. / Xu, H.E. / Jiang, Y. | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Molecular recognition of an acyl-peptide hormone and activation of ghrelin receptor. Authors: Yue Wang / Shimeng Guo / Youwen Zhuang / Ying Yun / Peiyu Xu / Xinheng He / Jia Guo / Wanchao Yin / H Eric Xu / Xin Xie / Yi Jiang / ![]() Abstract: Ghrelin, also called "the hunger hormone", is a gastric peptide hormone that regulates food intake, body weight, as well as taste sensation, reward, cognition, learning and memory. One unique feature ...Ghrelin, also called "the hunger hormone", is a gastric peptide hormone that regulates food intake, body weight, as well as taste sensation, reward, cognition, learning and memory. One unique feature of ghrelin is its acylation, primarily with an octanoic acid, which is essential for its binding and activation of the ghrelin receptor, a G protein-coupled receptor. The multifaceted roles of ghrelin make ghrelin receptor a highly attractive drug target for growth retardation, obesity, and metabolic disorders. Here we present two cryo-electron microscopy structures of G-coupled ghrelin receptor bound to ghrelin and a synthetic agonist, GHRP-6. Analysis of these two structures reveals a unique binding pocket for the octanoyl group, which guides the correct positioning of the peptide to initiate the receptor activation. Together with mutational and functional data, our structures define the rules for recognition of the acylated peptide hormone and activation of ghrelin receptor, and provide structural templates to facilitate drug design targeting ghrelin receptor. | |||||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 225.2 KB | Display | ![]() |
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PDB format | ![]() | 176.1 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 875.5 KB | Display | ![]() |
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Full document | ![]() | 884.4 KB | Display | |
Data in XML | ![]() | 33.6 KB | Display | |
Data in CIF | ![]() | 49.8 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 31500MC ![]() 7f9zC M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Assembly
Deposited unit | ![]()
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Components
-Protein , 2 types, 2 molecules AR
#1: Protein | Mass: 41855.578 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#6: Protein | Mass: 74282.609 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-Guanine nucleotide-binding protein ... , 2 types, 2 molecules BG
#2: Protein | Mass: 40226.992 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#4: Protein | Mass: 7861.143 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-Protein/peptide / Antibody , 2 types, 2 molecules CN
#3: Protein/peptide | Mass: 3252.726 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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#5: Antibody | Mass: 15343.019 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
-Non-polymers , 2 types, 3 molecules ![](data/chem/img/OCA.gif)
![](data/chem/img/CLR.gif)
![](data/chem/img/CLR.gif)
#7: Chemical | ChemComp-OCA / |
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#8: Chemical |
-Details
Has ligand of interest | Y |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: ghrelin-bound ghrelin receptor in complex with Gq / Type: COMPLEX / Entity ID: #1-#6 / Source: RECOMBINANT |
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Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() ![]() |
Buffer solution | pH: 7.4 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: OTHER / Nominal defocus max: 3000 nm / Nominal defocus min: 500 nm |
Image recording | Electron dose: 80 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
CTF correction | Type: NONE |
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3D reconstruction | Resolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 522055 / Symmetry type: POINT |