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- PDB-7f0t: Cryo-EM structure of dopamine receptor 1 and mini-Gs complex with... -

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Basic information

Entry
Database: PDB / ID: 7f0t
TitleCryo-EM structure of dopamine receptor 1 and mini-Gs complex with dopamine bound
Components
  • (Guanine nucleotide-binding protein ...) x 3
  • D(1A) dopamine receptor
  • Nanobody35
KeywordsMEMBRANE PROTEIN / GPCR / dopamine receptor / mini-Gs
Function / homology
Function and homology information


dopamine neurotransmitter receptor activity, coupled via Gs / dopamine neurotransmitter receptor activity / cerebral cortex GABAergic interneuron migration / operant conditioning / Dopamine receptors / regulation of dopamine uptake involved in synaptic transmission / dopamine binding / phospholipase C-activating dopamine receptor signaling pathway / heterotrimeric G-protein binding / modification of postsynaptic structure ...dopamine neurotransmitter receptor activity, coupled via Gs / dopamine neurotransmitter receptor activity / cerebral cortex GABAergic interneuron migration / operant conditioning / Dopamine receptors / regulation of dopamine uptake involved in synaptic transmission / dopamine binding / phospholipase C-activating dopamine receptor signaling pathway / heterotrimeric G-protein binding / modification of postsynaptic structure / peristalsis / regulation of dopamine metabolic process / G protein-coupled receptor complex / grooming behavior / positive regulation of neuron migration / habituation / sensitization / dopamine transport / astrocyte development / dentate gyrus development / conditioned taste aversion / striatum development / positive regulation of potassium ion transport / maternal behavior / arrestin family protein binding / non-motile cilium / long-term synaptic depression / mating behavior / adult walking behavior / G protein-coupled dopamine receptor signaling pathway / ciliary membrane / temperature homeostasis / D-glucose import / transmission of nerve impulse / dopamine metabolic process / behavioral response to cocaine / PKA activation in glucagon signalling / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / hair follicle placode formation / G-protein alpha-subunit binding / behavioral fear response / developmental growth / D1 dopamine receptor binding / intracellular transport / prepulse inhibition / vascular endothelial cell response to laminar fluid shear stress / neuronal action potential / renal water homeostasis / Hedgehog 'off' state / synapse assembly / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / presynaptic modulation of chemical synaptic transmission / response to amphetamine / regulation of insulin secretion / cellular response to glucagon stimulus / positive regulation of synaptic transmission, glutamatergic / adenylate cyclase activator activity / positive regulation of release of sequestered calcium ion into cytosol / trans-Golgi network membrane / GABA-ergic synapse / synaptic transmission, glutamatergic / negative regulation of inflammatory response to antigenic stimulus / G protein-coupled receptor activity / visual learning / bone development / memory / G-protein beta/gamma-subunit complex binding / platelet aggregation / long-term synaptic potentiation / Olfactory Signaling Pathway / cognition / 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 / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / Glucagon signaling in metabolic regulation / protein import into nucleus / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / vasodilation / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma
Similarity search - Function
Dopamine D1 receptor / Dopamine receptor family / G-protein alpha subunit, group S / 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 ...Dopamine D1 receptor / Dopamine receptor family / G-protein alpha subunit, group S / 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 / 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. / P-loop containing nucleotide triphosphate hydrolases / WD domain, G-beta repeat / 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 / Rossmann fold / P-loop containing nucleoside triphosphate hydrolase / 3-Layer(aba) Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
L-DOPAMINE / D(1A) 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(s) subunit alpha isoforms short
Similarity search - Component
Biological speciesHomo sapiens (human)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.1 Å
AuthorsXiao, T. / Zheng, S.
Funding support China, 1items
OrganizationGrant numberCountry
Ministry of Science and Technology (MoST, China) China
CitationJournal: Sci Adv / Year: 2022
Title: Structural insights into G protein activation by D1 dopamine receptor.
Authors: Xiao Teng / Sijia Chen / Qing Wang / Zhao Chen / Xiaoying Wang / Niu Huang / Sanduo Zheng /
Abstract: G protein-coupled receptors (GPCRs) comprise the largest family of membrane receptors and are the most important drug targets. An agonist-bound GPCR engages heterotrimeric G proteins and triggers the ...G protein-coupled receptors (GPCRs) comprise the largest family of membrane receptors and are the most important drug targets. An agonist-bound GPCR engages heterotrimeric G proteins and triggers the exchange of guanosine diphosphate (GDP) with guanosine triphosphate (GTP) to promote G protein activation. A complete understanding of molecular mechanisms of G protein activation has been hindered by a lack of structural information of GPCR-G protein complex in nucleotide-bound states. Here, we report the cryo-EM structures of the D1 dopamine receptor and mini-G complex in the nucleotide-free and nucleotide-bound states. These structures reveal major conformational changes in Gα such as structural rearrangements of the carboxyl- and amino-terminal α helices that account for the release of GDP and the GTP-dependent dissociation of Gα from Gβγ subunits. As validated by biochemical and cellular signaling studies, our structures shed light into the molecular basis of the entire signaling events of GPCR-mediated G protein activation.
History
DepositionJun 7, 2021Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jun 15, 2022Provider: repository / Type: Initial release
Revision 1.1Dec 28, 2022Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year
Revision 1.2Nov 6, 2024Group: Data collection / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_admin.last_update / _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
F: D(1A) dopamine receptor
A: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short,Isoform Gnas-2 of Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
B: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
D: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
E: Nanobody35
hetero molecules


Theoretical massNumber of molelcules
Total (without water)146,0866
Polymers145,9335
Non-polymers1531
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area13730 Å2
ΔGint-59 kcal/mol
Surface area44090 Å2

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Components

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Protein , 2 types, 2 molecules FE

#1: Protein D(1A) dopamine receptor / Dopamine D1 receptor


Mass: 52409.656 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: DRD1 / Production host: Homo sapiens (human) / References: UniProt: P21728
#5: Protein Nanobody35


Mass: 17352.498 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)

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

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


Mass: 28907.684 Da / Num. of mol.: 1 / Mutation: G49D, E50N, A235D, S238D, I358A, V361I
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNAS, GNAS1, GSP / Production host: Homo sapiens (human) / References: UniProt: P63092
#3: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 39418.086 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P62873
#4: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / G gamma-I


Mass: 7845.078 Da / Num. of mol.: 1 / Mutation: C68S
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNG2 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P59768

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Non-polymers , 1 types, 1 molecules

#6: Chemical ChemComp-LDP / L-DOPAMINE / DOPAMINE


Mass: 153.178 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C8H11NO2 / Feature type: SUBJECT OF INVESTIGATION / Comment: medication*YM

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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: Cryo-EM structure of dopamine receptor 1 and mini-Gs complex with dopamine bound
Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.5
SpecimenConc.: 4 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 281 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
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.16_3549: / Classification: refinement
EM softwareName: cryoSPARC / Category: particle selection
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 1045088 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.018334
ELECTRON MICROSCOPYf_angle_d0.96811287
ELECTRON MICROSCOPYf_dihedral_angle_d11.3755535
ELECTRON MICROSCOPYf_chiral_restr0.0591269
ELECTRON MICROSCOPYf_plane_restr0.0061438

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