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- PDB-8jsr: Cryo-EM structure of the anamorelin-bound ghrelin receptor and Gq... -

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Basic information

Entry
Database: PDB / ID: 8jsr
TitleCryo-EM structure of the anamorelin-bound ghrelin receptor and Gq complex
Components
  • (Guanine nucleotide-binding protein ...) x 2
  • Engineered G-alpha-q
  • Growth hormone secretagogue receptor type 1
  • Nb35
  • scFv16
KeywordsMEMBRANE PROTEIN / GPCR / SBDD / Cachexia
Function / homology
Function and homology information


growth hormone secretagogue receptor activity / regulation of hindgut contraction / regulation of growth hormone secretion / positive regulation of small intestinal transit / 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 / ghrelin secretion ...growth hormone secretagogue receptor activity / regulation of hindgut contraction / regulation of growth hormone secretion / positive regulation of small intestinal transit / 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 / ghrelin secretion / positive regulation of appetite / growth hormone secretion / negative regulation of norepinephrine secretion / positive regulation of small intestine smooth muscle contraction / negative regulation of macrophage apoptotic process / positive regulation of eating behavior / adult feeding behavior / negative regulation of appetite / actin polymerization or depolymerization / positive regulation of multicellular organism growth / cellular response to thyroid hormone stimulus / response to growth hormone / positive regulation of insulin-like growth factor receptor signaling pathway / regulation of postsynapse organization / positive regulation of vascular endothelial cell proliferation / response to L-glutamate / 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 / positive regulation of sprouting angiogenesis / regulation of neurotransmitter receptor localization to postsynaptic specialization membrane / decidualization / peptide hormone binding / negative regulation of interleukin-6 production / negative regulation of tumor necrosis factor production / postsynaptic modulation of chemical synaptic transmission / response to hormone / hormone-mediated signaling pathway / insulin-like growth factor receptor signaling pathway / synaptic membrane / Peptide ligand-binding receptors / negative regulation of insulin secretion / G protein-coupled receptor activity / negative regulation of inflammatory response / Schaffer collateral - CA1 synapse / cellular response to insulin stimulus / 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-coupled acetylcholine receptor signaling pathway / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / G beta:gamma signalling through CDC42 / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / ADP signalling through P2Y purinoceptor 12 / photoreceptor disc membrane / Sensory perception of sweet, bitter, and umami (glutamate) taste / Glucagon-type ligand receptors / 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 / ADP signalling through P2Y purinoceptor 1 / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / G beta:gamma signalling through PI3Kgamma / response to estradiol / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / G-protein beta-subunit binding / cellular response to prostaglandin E stimulus / heterotrimeric G-protein complex / Inactivation, recovery and regulation of the phototransduction cascade / G alpha (12/13) signalling events / extracellular vesicle / sensory perception of taste / Thrombin signalling through proteinase activated receptors (PARs) / signaling receptor complex adaptor activity / cellular response to lipopolysaccharide / retina development in camera-type eye / GTPase binding / Ca2+ pathway / fibroblast proliferation / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / spermatogenesis / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / Ras protein signal transduction
Similarity search - Function
Growth hormone secretagogue receptor/motilin receptor / G-protein, gamma subunit / G-protein gamma subunit domain profile. / G-protein gamma-like domain / G-protein gamma-like domain superfamily / GGL domain / G protein gamma subunit-like motifs / GGL domain / G protein beta WD-40 repeat protein / Guanine nucleotide-binding protein, beta subunit ...Growth hormone secretagogue receptor/motilin receptor / G-protein, gamma subunit / G-protein gamma subunit domain profile. / G-protein gamma-like domain / G-protein gamma-like domain superfamily / GGL domain / G protein gamma subunit-like motifs / GGL domain / G protein beta WD-40 repeat protein / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / G-protein coupled receptors family 1 signature. / 7 transmembrane receptor (rhodopsin family) / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 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. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily
Similarity search - Domain/homology
: / 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 / Growth hormone secretagogue receptor type 1
Similarity search - Component
Biological speciesHomo sapiens (human)
Mus musculus (house mouse)
Lama glama (llama)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.9 Å
AuthorsIm, D. / Shiimura, Y. / Asada, H. / Iwata, S.
Funding support Japan, 1items
OrganizationGrant numberCountry
Japan Society for the Promotion of Science (JSPS)18K16217, 20K06531, 20KK0359, 22KK0099 Japan
CitationJournal: Nat Struct Mol Biol / Year: 2025
Title: The structure and function of the ghrelin receptor coding for drug actions.
Authors: Yuki Shiimura / Dohyun Im / Ryosuke Tany / Hidetsugu Asada / Ryoji Kise / Eon Kurumiya / Hideko Wakasugi-Masuho / Satoshi Yasuda / Kazuma Matsui / Jun-Ichi Kishikawa / Takayuki Kato / ...Authors: Yuki Shiimura / Dohyun Im / Ryosuke Tany / Hidetsugu Asada / Ryoji Kise / Eon Kurumiya / Hideko Wakasugi-Masuho / Satoshi Yasuda / Kazuma Matsui / Jun-Ichi Kishikawa / Takayuki Kato / Takeshi Murata / Masayasu Kojima / So Iwata / Ikuo Masuho /
Abstract: Drugs targeting the ghrelin receptor hold therapeutic potential in anorexia, obesity and diabetes. However, developing effective drugs is challenging. To tackle this common issue across a broad drug ...Drugs targeting the ghrelin receptor hold therapeutic potential in anorexia, obesity and diabetes. However, developing effective drugs is challenging. To tackle this common issue across a broad drug target, this study aims to understand how anamorelin, the only approved drug targeting the ghrelin receptor, operates compared to other synthetic drugs. Our research elucidated the receptor's structure with anamorelin and miniG, unveiling anamorelin's superagonistic activity. We demonstrated that ligands with distinct chemical structures uniquely bind to the receptor, resulting in diverse conformations and biasing signal transduction. Moreover, our study showcased the utility of structural information in effectively identifying natural genetic variations altering drug action and causing severe functional deficiencies, offering a basis for selecting the right medication on the basis of the individual's genomic sequence. Thus, by building on structural analysis, this study enhances the foundational framework for selecting therapeutic agents targeting the ghrelin receptor, by effectively leveraging signaling bias and genetic variations.
History
DepositionJun 20, 2023Deposition site: PDBJ / Processing site: PDBJ
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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
R: Growth hormone secretagogue receptor type 1
A: Engineered G-alpha-q
B: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
C: scFv16
G: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
N: Nb35
hetero molecules


Theoretical massNumber of molelcules
Total (without water)193,0437
Polymers192,4966
Non-polymers5471
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Protein , 2 types, 2 molecules RA

#1: Protein Growth hormone secretagogue receptor type 1 / GHS-R / GH-releasing peptide receptor / GHRP / Ghrelin receptor


Mass: 58827.020 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GHSR / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q92847
#2: Protein Engineered G-alpha-q


Mass: 41724.383 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Spodoptera frugiperda (fall armyworm)

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Guanine nucleotide-binding protein ... , 2 types, 2 molecules BG

#3: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 42282.156 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
#5: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / G gamma-I


Mass: 7861.143 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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Antibody , 2 types, 2 molecules CN

#4: Antibody scFv16


Mass: 27784.896 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Production host: Spodoptera frugiperda (fall armyworm)
#6: Antibody Nb35


Mass: 14016.636 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Lama glama (llama) / Production host: Spodoptera frugiperda (fall armyworm)

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Non-polymers , 1 types, 1 molecules

#7: Chemical ChemComp-UYI / Anamorelin / 2-azanyl-N-[(2R)-1-[(3R)-3-[dimethylamino(methyl)carbamoyl]-3-(phenylmethyl)piperidin-1-yl]-3-(1H-indol-3-yl)-1-oxidanylidene-propan-2-yl]-2-methyl-propanamide / DB06645


Mass: 546.704 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C31H42N6O3

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Details

Has ligand of interestY
Has protein modificationY

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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: Anamorelin-bound ghrelin receptor in complex with Gq / Type: COMPLEX / Entity ID: #2-#6, #1 / Source: RECOMBINANT
Molecular weightValue: 0.19 MDa / Experimental value: YES
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.5
SpecimenConc.: 10 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / 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: 281.15 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 FIELD / Nominal defocus max: 1800 nm / Nominal defocus min: 800 nm
Specimen holderSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

EM softwareName: PHENIX / Version: 1.21rc1_5109: / Category: model refinement
CTF correctionType: NONE
3D reconstructionResolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 500563 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00310213
ELECTRON MICROSCOPYf_angle_d0.54413843
ELECTRON MICROSCOPYf_dihedral_angle_d5.1541400
ELECTRON MICROSCOPYf_chiral_restr0.0411564
ELECTRON MICROSCOPYf_plane_restr0.0041752

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