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- PDB-7aue: Melanocortin receptor 4 (MC4R) Gs protein complex -

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Basic information

Entry
Database: PDB / ID: 7aue
TitleMelanocortin receptor 4 (MC4R) Gs protein complex
Components
  • (Guanine nucleotide-binding protein ...) x 3
  • AMINOSERINE
  • Melanocortin receptor 4
  • scFv16
KeywordsMEMBRANE PROTEIN / MC4R / Melanocortin / Obesity / GPCR / agonist / setmelanotide
Function / homology
Function and homology information


regulation of eating behavior / melanocyte-stimulating hormone receptor activity / response to melanocyte-stimulating hormone / melanocortin receptor activity / regulation of grooming behavior / energy reserve metabolic process / neuropeptide binding / regulation of metabolic process / feeding behavior / insulin secretion ...regulation of eating behavior / melanocyte-stimulating hormone receptor activity / response to melanocyte-stimulating hormone / melanocortin receptor activity / regulation of grooming behavior / energy reserve metabolic process / neuropeptide binding / regulation of metabolic process / feeding behavior / insulin secretion / diet induced thermogenesis / negative regulation of feeding behavior / PKA activation in glucagon signalling / peptide hormone binding / hair follicle placode formation / intracellular transport / D1 dopamine receptor binding / developmental growth / positive regulation of bone resorption / Hedgehog 'off' state / positive regulation of cAMP-mediated signaling / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / adenylate cyclase activator activity / Peptide ligand-binding receptors / trans-Golgi network membrane / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / response to insulin / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / bone development / 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 / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / adenylate cyclase-activating G protein-coupled receptor signaling pathway / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / Adrenaline,noradrenaline inhibits insulin secretion / platelet aggregation / Glucagon-type ligand receptors / cognition / Vasopressin regulates renal water homeostasis via Aquaporins / positive regulation of GTPase activity / G alpha (z) signalling events / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / adenylate cyclase-activating dopamine receptor signaling pathway / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / sensory perception of taste / GPER1 signaling / G-protein beta-subunit binding / heterotrimeric G-protein complex / Inactivation, recovery and regulation of the phototransduction cascade / extracellular vesicle / G alpha (12/13) signalling events / signaling receptor complex adaptor activity / sensory perception of smell / Thrombin signalling through proteinase activated receptors (PARs) / retina development in camera-type eye / GTPase binding / Ca2+ pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / positive regulation of cold-induced thermogenesis / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / G alpha (q) signalling events / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / ubiquitin protein ligase binding / protein-containing complex binding / GTP binding / signal transduction / extracellular exosome / membrane / metal ion binding / plasma membrane / cytosol / cytoplasm
Similarity search - Function
Melanocortin 4 receptor / Melanocortin receptor 3-5 / Melanocortin/ACTH receptor / G-protein alpha subunit, group S / Serpentine type 7TM GPCR chemoreceptor Srsx / G-alpha domain profile. / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G protein alpha subunit ...Melanocortin 4 receptor / Melanocortin receptor 3-5 / Melanocortin/ACTH receptor / G-protein alpha subunit, group S / Serpentine type 7TM GPCR chemoreceptor Srsx / G-alpha domain profile. / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G protein alpha subunit / G-protein, gamma subunit / G-protein gamma subunit domain profile. / GGL domain / G-protein gamma-like domain superfamily / G-protein gamma-like domain / GGL domain / G protein gamma subunit-like motifs / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / G-protein coupled receptors family 1 signature. / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family) / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Melanocortin receptor 4 / 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 / Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
Similarity search - Component
Biological speciesHomo sapiens (human)
Mus musculus (house mouse)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.97 Å
AuthorsDegtjarik, O. / Israeli, H. / Prabahar, V. / Shalev-Benami, M.
CitationJournal: Science / Year: 2021
Title: Structure reveals the activation mechanism of the MC4 receptor to initiate satiation signaling.
Authors: Hadar Israeli / Oksana Degtjarik / Fabrizio Fierro / Vidicha Chunilal / Amandeep Kaur Gill / Nicolas J Roth / Joaquin Botta / Vadivel Prabahar / Yoav Peleg / Li F Chan / Danny Ben-Zvi / ...Authors: Hadar Israeli / Oksana Degtjarik / Fabrizio Fierro / Vidicha Chunilal / Amandeep Kaur Gill / Nicolas J Roth / Joaquin Botta / Vadivel Prabahar / Yoav Peleg / Li F Chan / Danny Ben-Zvi / Peter J McCormick / Masha Y Niv / Moran Shalev-Benami /
Abstract: Obesity is a global epidemic that causes morbidity and impaired quality of life. The melanocortin receptor 4 (MC4R) is at the crux of appetite, energy homeostasis, and body-weight control in the ...Obesity is a global epidemic that causes morbidity and impaired quality of life. The melanocortin receptor 4 (MC4R) is at the crux of appetite, energy homeostasis, and body-weight control in the central nervous system and is a prime target for anti-obesity drugs. Here, we present the cryo-electron microscopy (cryo-EM) structure of the human MC4R-G signaling complex bound to the agonist setmelanotide, a cyclic peptide recently approved for the treatment of obesity. The work reveals the mechanism of MC4R activation, highlighting a molecular switch that initiates satiation signaling. In addition, our findings indicate that calcium (Ca) is required for agonist, but not antagonist, efficacy. These results fill a gap in the understanding of MC4R activation and could guide the design of future weight-management drugs.
History
DepositionNov 2, 2020Deposition site: PDBE / Processing site: PDBE
Revision 1.0Apr 28, 2021Provider: repository / Type: Initial release
Revision 1.1Jun 2, 2021Group: Database references / Category: citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID
Revision 2.0Mar 15, 2023Group: Atomic model / Author supporting evidence ...Atomic model / Author supporting evidence / Data collection / Database references / Derived calculations / Non-polymer description / Polymer sequence / Source and taxonomy / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / database_2 / em_entity_assembly / entity / entity_poly / entity_poly_seq / entity_src_gen / pdbx_entity_instance_feature / pdbx_entity_src_syn / pdbx_poly_seq_scheme / pdbx_validate_torsion / struct_conn / struct_ref / struct_ref_seq / struct_ref_seq_dif
Item: _atom_site.auth_atom_id / _atom_site.auth_comp_id ..._atom_site.auth_atom_id / _atom_site.auth_comp_id / _atom_site.auth_seq_id / _atom_site.group_PDB / _atom_site.label_atom_id / _atom_site.label_comp_id / _atom_site.label_seq_id / _chem_comp.formula / _chem_comp.formula_weight / _chem_comp.id / _chem_comp.mon_nstd_flag / _chem_comp.name / _chem_comp.type / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _em_entity_assembly.entity_id_list / _entity.formula_weight / _entity.pdbx_description / _entity_poly.pdbx_seq_one_letter_code / _entity_poly.pdbx_seq_one_letter_code_can / _pdbx_entity_src_syn.pdbx_end_seq_num / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id

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Structure visualization

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  • Deposited structure unit
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  • EMDB-11927
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Structure viewerMolecule:
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Assembly

Deposited unit
R: Melanocortin receptor 4
A: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
B: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
G: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
S: scFv16
C: AMINOSERINE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)157,8037
Polymers157,7636
Non-polymers401
Water181
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area12970 Å2
ΔGint-89 kcal/mol
Surface area51600 Å2
MethodPISA

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Components

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Guanine nucleotide-binding protein ... , 3 types, 3 molecules ABG

#2: Protein Guanine nucleotide-binding protein G(s) subunit alpha isoforms short / Adenylate cyclase-stimulating G alpha protein


Mass: 43194.902 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNAS, GNAS1, GSP / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P63092
#3: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 39286.891 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
#4: 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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Protein / Antibody / Protein/peptide , 3 types, 3 molecules RSC

#1: Protein Melanocortin receptor 4 / / MC4-R


Mass: 38972.852 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: MC4R / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P32245
#5: Antibody scFv16


Mass: 27340.482 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Production host: Trichoplusia ni (cabbage looper)
#6: Protein/peptide AMINOSERINE


Mass: 1106.349 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)

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Non-polymers , 2 types, 2 molecules

#7: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Ca
#8: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestY

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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

Component
IDNameTypeEntity IDParent-IDSource
1Melanocortine 4 (MC4R) - GalphaS protein comlexCOMPLEX#1-#50MULTIPLE SOURCES
2Melanocortine 4 (MC4R) - GalphaS protein comlexCOMPLEX#1-#41RECOMBINANT
3scFv16COMPLEX#51RECOMBINANT
4AMINOSERINECOMPLEX#61SYNTHETIC
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
22Homo sapiens (human)9606
33Mus musculus (house mouse)10090
44synthetic construct (others)32630
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
22Spodoptera frugiperda (fall armyworm)7108
33Trichoplusia ni (cabbage looper)7111
44synthetic construct (others)32630
Buffer solutionpH: 7.5
SpecimenConc.: 14 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: GOLD / Grid mesh size: 200 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 295 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: OTHER
Electron lensMode: BRIGHT FIELDBright-field microscopy / C2 aperture diameter: 100 µm
Image recordingElectron dose: 45.5 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

Software
NameVersionClassification
phenix.real_space_refine1.14_3260refinement
PHENIX1.14_3260refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.97 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 366496 / Symmetry type: POINT
RefinementStereochemistry target values: CDL v1.2
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00348934
ELECTRON MICROSCOPYf_angle_d0.781412113
ELECTRON MICROSCOPYf_chiral_restr0.05221397
ELECTRON MICROSCOPYf_plane_restr0.0061525
ELECTRON MICROSCOPYf_dihedral_angle_d17.46685268

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