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- PDB-7jvr: Cryo-EM structure of Bromocriptine-bound dopamine receptor 2 in c... -

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Basic information

Entry
Database: PDB / ID: 7jvr
TitleCryo-EM structure of Bromocriptine-bound dopamine receptor 2 in complex with Gi protein
Components
  • (Guanine nucleotide-binding protein ...) x 3
  • Antibody fragment ScFv16
  • Soluble cytochrome b562,D(2) dopamine receptor
KeywordsSIGNALING PROTEIN / Dopamine receptor 2 / Gi protein / bromocriptine
Function / homology
Function and homology information


negative regulation of dopamine receptor signaling pathway / positive regulation of dopamine uptake involved in synaptic transmission / negative regulation of dephosphorylation / positive regulation of glial cell-derived neurotrophic factor production / acid secretion / dopamine neurotransmitter receptor activity, coupled via Gi/Go / nervous system process involved in regulation of systemic arterial blood pressure / response to histamine / negative regulation of circadian sleep/wake cycle, sleep / regulation of synapse structural plasticity ...negative regulation of dopamine receptor signaling pathway / positive regulation of dopamine uptake involved in synaptic transmission / negative regulation of dephosphorylation / positive regulation of glial cell-derived neurotrophic factor production / acid secretion / dopamine neurotransmitter receptor activity, coupled via Gi/Go / nervous system process involved in regulation of systemic arterial blood pressure / response to histamine / negative regulation of circadian sleep/wake cycle, sleep / regulation of synapse structural plasticity / regulation of locomotion involved in locomotory behavior / neuron-neuron synaptic transmission / adenohypophysis development / negative regulation of dopamine secretion / positive regulation of renal sodium excretion / negative regulation of cellular response to hypoxia / hyaloid vascular plexus regression / adenylate cyclase-inhibiting dopamine receptor signaling pathway / response to inactivity / regulation of potassium ion transport / orbitofrontal cortex development / cerebral cortex GABAergic interneuron migration / Dopamine receptors / negative regulation of neuron migration / dopamine binding / branching morphogenesis of a nerve / regulation of dopamine uptake involved in synaptic transmission / positive regulation of growth hormone secretion / phospholipase C-activating dopamine receptor signaling pathway / peristalsis / heterotrimeric G-protein binding / drinking behavior / G protein-coupled receptor complex / grooming behavior / behavioral response to ethanol / auditory behavior / positive regulation of G protein-coupled receptor signaling pathway / striatum development / dopaminergic synapse / positive regulation of urine volume / positive regulation of multicellular organism growth / G protein-coupled receptor internalization / non-motile cilium / negative regulation of synaptic transmission, glutamatergic / heterocyclic compound binding / response to iron ion / adult walking behavior / arachidonate secretion / response to morphine / ciliary membrane / negative regulation of cytosolic calcium ion concentration / temperature homeostasis / regulation of synaptic transmission, GABAergic / positive regulation of neuroblast proliferation / pigmentation / positive regulation of cytokinesis / dopamine uptake involved in synaptic transmission / dopamine metabolic process / regulation of dopamine secretion / cellular response to ethanol / response to light stimulus / associative learning / positive regulation of receptor internalization / lateral plasma membrane / G-protein alpha-subunit binding / endocytic vesicle / neuroblast proliferation / negative regulation of protein secretion / long-term memory / potassium channel regulator activity / sperm flagellum / prepulse inhibition / postsynaptic modulation of chemical synaptic transmission / response to axon injury / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / behavioral response to cocaine / regulation of sodium ion transport / Adenylate cyclase inhibitory pathway / T cell migration / synapse assembly / negative regulation of blood pressure / D2 dopamine receptor binding / response to prostaglandin E / cellular response to retinoic acid / adenylate cyclase regulator activity / G protein-coupled serotonin receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / release of sequestered calcium ion into cytosol / axon terminus / ionotropic glutamate receptor binding / presynaptic modulation of chemical synaptic transmission / negative regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / acrosomal vesicle / cellular response to forskolin / axonogenesis / regulation of heart rate / negative regulation of innate immune response / regulation of mitotic spindle organization / negative regulation of cell migration
Similarity search - Function
Dopamine D2 receptor / Dopamine receptor family / Cytochrome b562 / Cytochrome b562 / Cytochrome c/b562 / G-protein alpha subunit, group I / YVTN repeat-like/Quinoprotein amine dehydrogenase / Serpentine type 7TM GPCR chemoreceptor Srsx / 7 Propeller / Methylamine Dehydrogenase; Chain H ...Dopamine D2 receptor / Dopamine receptor family / Cytochrome b562 / Cytochrome b562 / Cytochrome c/b562 / G-protein alpha subunit, group I / YVTN repeat-like/Quinoprotein amine dehydrogenase / Serpentine type 7TM GPCR chemoreceptor Srsx / 7 Propeller / Methylamine Dehydrogenase; Chain H / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G-alpha domain profile. / G protein alpha subunit / 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. / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family) / WD domain, G-beta repeat / 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 / P-loop containing nucleoside triphosphate hydrolase / Mainly Beta
Similarity search - Domain/homology
bromoergocryptine / Soluble cytochrome b562 / D(2) dopamine receptor / 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(i) subunit alpha-1
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
Homo sapiens (human)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.8 Å
AuthorsZhuang, Y. / Xu, P. / Mao, C. / Wang, L. / Krumm, B. / Zhou, X.E. / Huang, S. / Liu, H. / Cheng, X. / Huang, X.-P. ...Zhuang, Y. / Xu, P. / Mao, C. / Wang, L. / Krumm, B. / Zhou, X.E. / Huang, S. / Liu, H. / Cheng, X. / Huang, X.-P. / Sheng, D.-D. / Xu, T. / Liu, Y.-F. / Wang, Y. / Guo, J. / Jiang, Y. / Jiang, H. / Melcher, K. / Roth, B.L. / Zhang, Y. / Zhang, C. / Xu, H.E.
Funding support China, United States, 4items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)81922071 China
National Natural Science Foundation of China (NSFC)31770796 China
National Institutes of Health/National Institute of Mental Health (NIH/NIMH)RO1MH112205 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35GM128641 United States
CitationJournal: Cell / Year: 2021
Title: Structural insights into the human D1 and D2 dopamine receptor signaling complexes.
Authors: Youwen Zhuang / Peiyu Xu / Chunyou Mao / Lei Wang / Brian Krumm / X Edward Zhou / Sijie Huang / Heng Liu / Xi Cheng / Xi-Ping Huang / Dan-Dan Shen / Tinghai Xu / Yong-Feng Liu / Yue Wang / ...Authors: Youwen Zhuang / Peiyu Xu / Chunyou Mao / Lei Wang / Brian Krumm / X Edward Zhou / Sijie Huang / Heng Liu / Xi Cheng / Xi-Ping Huang / Dan-Dan Shen / Tinghai Xu / Yong-Feng Liu / Yue Wang / Jia Guo / Yi Jiang / Hualiang Jiang / Karsten Melcher / Bryan L Roth / Yan Zhang / Cheng Zhang / H Eric Xu /
Abstract: The D1- and D2-dopamine receptors (D1R and D2R), which signal through G and G, respectively, represent the principal stimulatory and inhibitory dopamine receptors in the central nervous system. D1R ...The D1- and D2-dopamine receptors (D1R and D2R), which signal through G and G, respectively, represent the principal stimulatory and inhibitory dopamine receptors in the central nervous system. D1R and D2R also represent the main therapeutic targets for Parkinson's disease, schizophrenia, and many other neuropsychiatric disorders, and insight into their signaling is essential for understanding both therapeutic and side effects of dopaminergic drugs. Here, we report four cryoelectron microscopy (cryo-EM) structures of D1R-G and D2R-G signaling complexes with selective and non-selective dopamine agonists, including two currently used anti-Parkinson's disease drugs, apomorphine and bromocriptine. These structures, together with mutagenesis studies, reveal the conserved binding mode of dopamine agonists, the unique pocket topology underlying ligand selectivity, the conformational changes in receptor activation, and potential structural determinants for G protein-coupling selectivity. These results provide both a molecular understanding of dopamine signaling and multiple structural templates for drug design targeting the dopaminergic system.
History
DepositionAug 22, 2020Deposition site: RCSB / Processing site: RCSB
Revision 1.0Feb 24, 2021Provider: repository / Type: Initial release
Revision 1.0Feb 24, 2021Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Feb 24, 2021Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Feb 24, 2021Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.0Feb 24, 2021Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Feb 24, 2021Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.0Feb 24, 2021Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Feb 24, 2021Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.0Feb 24, 2021Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Feb 24, 2021Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.1Mar 3, 2021Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 2.0Mar 31, 2021Group: Atomic model / Data collection / Structure summary / Category: atom_site / em_software / entity
Item: _atom_site.B_iso_or_equiv / _atom_site.Cartn_x ..._atom_site.B_iso_or_equiv / _atom_site.Cartn_x / _atom_site.Cartn_y / _atom_site.Cartn_z / _em_software.category / _em_software.fitting_id / _em_software.imaging_id / _entity.pdbx_description
Description: Ligand geometry
Details: Corrected the configurations of two nitrogen atoms in the ligand bromoergocryptine.
Provider: author / Type: Coordinate replacement
Revision 2.1Oct 23, 2024Group: Data collection / Database references / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _em_admin.last_update / _pdbx_entry_details.has_protein_modification
Revision 2.2May 28, 2025Group: Data collection / Category: em_admin / em_software / Item: _em_admin.last_update / _em_software.name
Revision 1.1May 28, 2025Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Data processing / Experimental summary / Data content type: EM metadata / EM metadata / Category: em_admin / em_software / Data content type: EM metadata / EM metadata / Item: _em_admin.last_update / _em_software.name

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Structure visualization

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Assembly

Deposited unit
R: Soluble cytochrome b562,D(2) dopamine receptor
A: Guanine nucleotide-binding protein G(i) subunit alpha-1
B: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
C: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
E: Antibody fragment ScFv16
hetero molecules


Theoretical massNumber of molelcules
Total (without water)183,1246
Polymers182,4705
Non-polymers6551
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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

#2: Protein Guanine nucleotide-binding protein G(i) subunit alpha-1 / Adenylate cyclase-inhibiting G alpha protein


Mass: 40414.047 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNAI1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P63096
#3: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 38146.707 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 / Non-polymers , 3 types, 3 molecules RE

#1: Protein Soluble cytochrome b562,D(2) dopamine receptor / Cytochrome b-562 / Dopamine D2 receptor


Mass: 67234.578 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli), (gene. exp.) Homo sapiens (human)
Gene: cybC, DRD2 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P0ABE7, UniProt: P14416
#5: Antibody Antibody fragment ScFv16


Mass: 28813.047 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) synthetic construct (others) / Production host: Escherichia coli (E. coli)
#6: Chemical ChemComp-08Y / bromoergocryptine / bromocriptine


Mass: 654.594 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C32H40BrN5O5 / Feature type: SUBJECT OF INVESTIGATION

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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: Bromocriptin-bound dopamine receptor 2 in complex with Gi protein
Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.2
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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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
Image recordingElectron dose: 64 e/Å2 / Film or detector model: GATAN K2 BASE (4k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.13_2998: / Classification: refinement
EM softwareName: PHENIX / Category: model refinement
CTF correctionType: NONE
3D reconstructionResolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 632558 / Symmetry type: POINT

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