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- PDB-7x2f: Cryo-EM structure of the dopamine and LY3154207-bound D1 dopamine... -

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Basic information

Entry
Database: PDB / ID: 7x2f
TitleCryo-EM structure of the dopamine and LY3154207-bound D1 dopamine receptor and mini-Gs complex
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 / cerebral cortex GABAergic interneuron migration / Dopamine receptors / dopamine neurotransmitter receptor activity, coupled via Gs / operant conditioning / dopamine binding / regulation of dopamine uptake involved in synaptic transmission / modification of postsynaptic structure / heterotrimeric G-protein binding / sensitization ...dopamine neurotransmitter receptor activity / cerebral cortex GABAergic interneuron migration / Dopamine receptors / dopamine neurotransmitter receptor activity, coupled via Gs / operant conditioning / dopamine binding / regulation of dopamine uptake involved in synaptic transmission / modification of postsynaptic structure / heterotrimeric G-protein binding / sensitization / regulation of dopamine metabolic process / dopamine transport / peristalsis / phospholipase C-activating dopamine receptor signaling pathway / G protein-coupled receptor complex / grooming behavior / positive regulation of neuron migration / habituation / astrocyte development / conditioned taste aversion / positive regulation of potassium ion transport / striatum development / dentate gyrus development / maternal behavior / arrestin family protein binding / non-motile cilium / adult walking behavior / mating behavior / long-term synaptic depression / ciliary membrane / dopamine receptor signaling pathway / temperature homeostasis / dopamine metabolic process / transmission of nerve impulse / glucose import / behavioral response to cocaine / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / G-protein alpha-subunit binding / neuronal action potential / GABA-ergic synapse / behavioral fear response / prepulse inhibition / adenylate cyclase-activating adrenergic receptor signaling pathway / synapse assembly / activation of adenylate cyclase activity / response to amphetamine / presynaptic modulation of chemical synaptic transmission / positive regulation of synaptic transmission, glutamatergic / positive regulation of release of sequestered calcium ion into cytosol / synaptic transmission, glutamatergic / G protein-coupled receptor activity / long-term synaptic potentiation / regulation of protein phosphorylation / Olfactory Signaling Pathway / Activation of the phototransduction cascade / visual learning / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / 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 / cilium / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / memory / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / 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 / 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 / protein import into nucleus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / vasodilation / GPER1 signaling / 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) / retina development in camera-type eye / GTPase binding / presynaptic membrane
Similarity search - Function
Dopamine D1 receptor / Dopamine receptor family / Serpentine type 7TM GPCR chemoreceptor Srsx / 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 ...Dopamine D1 receptor / Dopamine receptor family / Serpentine type 7TM GPCR chemoreceptor Srsx / 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. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily
Similarity search - Domain/homology
CHOLESTEROL / Chem-G4C / 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
Similarity search - Component
Biological speciesHomo sapiens (human)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3 Å
AuthorsTeng, X. / Zheng, S.
Funding support China, 1items
OrganizationGrant numberCountry
Ministry of Science and Technology (MoST, China) China
CitationJournal: Nat Commun / Year: 2022
Title: Ligand recognition and biased agonism of the D1 dopamine receptor.
Authors: Xiao Teng / Sijia Chen / Yingying Nie / Peng Xiao / Xiao Yu / Zhenhua Shao / Sanduo Zheng /
Abstract: Dopamine receptors are widely distributed in the central nervous system and are important therapeutic targets for treatment of various psychiatric and neurological diseases. Here, we report three ...Dopamine receptors are widely distributed in the central nervous system and are important therapeutic targets for treatment of various psychiatric and neurological diseases. Here, we report three cryo-electron microscopy structures of the D1 dopamine receptor (D1R)-Gs complex bound to two agonists, fenoldopam and tavapadon, and a positive allosteric modulator LY3154207. The structure reveals unusual binding of two fenoldopam molecules, one to the orthosteric binding pocket (OBP) and the other to the extended binding pocket (EBP). In contrast, one elongated tavapadon molecule binds to D1R, extending from OBP to EBP. Moreover, LY3154207 stabilizes the second intracellular loop of D1R in an alpha helical conformation to efficiently engage the G protein. Through a combination of biochemical, biophysical and cellular assays, we further show that the broad conformation stabilized by two fenoldopam molecules and interaction between TM5 and the agonist are important for biased signaling of D1R.
History
DepositionFeb 25, 2022Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jun 15, 2022Provider: repository / Type: Initial release
Revision 1.1Jun 22, 2022Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_PubMed / _citation.title

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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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
E: Nanobody35
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
hetero molecules


Theoretical massNumber of molelcules
Total (without water)147,3109
Polymers145,9335
Non-polymers1,3774
Water0
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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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
#3: Protein Nanobody35


Mass: 17352.498 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)

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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


Mass: 28907.684 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human)
#4: 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
#5: 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 , 3 types, 4 molecules

#6: Chemical ChemComp-CLR / CHOLESTEROL / Cholesterol


Mass: 386.654 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C27H46O
#7: Chemical ChemComp-G4C / 2-[2,6-bis(chloranyl)phenyl]-1-[(1S,3R)-3-(hydroxymethyl)-1-methyl-5-(3-methyl-3-oxidanyl-butyl)-3,4-dihydro-1H-isoquinolin-2-yl]ethanone


Mass: 450.398 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C24H29Cl2NO3 / Feature type: SUBJECT OF INVESTIGATION
#8: Chemical ChemComp-LDP / L-DOPAMINE / DOPAMINE / Dopamine (medication)


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

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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
1Cryo-EM structure of the dopamine-LY3154207-bound D1R-miniGs complextheCOMPLEX#1-#50MULTIPLE SOURCES
2dopamine-LY3154207-bound D1R-miniGsCOMPLEX#1-#2, #4-#51RECOMBINANT
3nanobody35COMPLEX#31SYNTHETIC
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: GOLD / 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 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 FIELDBright-field microscopy / Nominal magnification: 64000 X / Nominal defocus max: 2200 nm / Nominal defocus min: 600 nm
Specimen holderCryogen: NITROGEN
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of real images: 824

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Processing

SoftwareName: PHENIX / Version: 1.19.2_4158: / Classification: refinement
EM softwareName: cryoSPARC / Version: v3 / Category: CTF correction
Details: CTF parameters were estimated using patch-based CTF estimation
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 1493642
3D reconstructionResolution: 3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 234629 / Num. of class averages: 2 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0048426
ELECTRON MICROSCOPYf_angle_d0.7611432
ELECTRON MICROSCOPYf_dihedral_angle_d6.6711157
ELECTRON MICROSCOPYf_chiral_restr0.0491291
ELECTRON MICROSCOPYf_plane_restr0.0051444

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