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Yorodumi- PDB-7f23: Cryo-EM structure of the GTP-bound dopamine receptor 1 and mini-G... -
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-Basic information
Entry | Database: PDB / ID: 7f23 | ||||||
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Title | Cryo-EM structure of the GTP-bound dopamine receptor 1 and mini-Gs complex with Nb35 | ||||||
Components |
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Keywords | MEMBRANE 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 / modification of postsynaptic structure / dopamine binding / heterotrimeric G-protein binding / peristalsis ...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 / modification of postsynaptic structure / dopamine binding / heterotrimeric G-protein binding / peristalsis / regulation of dopamine metabolic process / G protein-coupled receptor complex / sensitization / grooming behavior / phospholipase C-activating dopamine receptor signaling pathway / positive regulation of neuron migration / habituation / dopamine transport / astrocyte development / conditioned taste aversion / striatum development / positive regulation of potassium ion transport / dentate gyrus development / maternal behavior / arrestin family protein binding / non-motile cilium / long-term synaptic depression / mating behavior / adult walking behavior / ciliary membrane / G protein-coupled dopamine receptor signaling pathway / temperature homeostasis / D-glucose import / transmission of nerve impulse / dopamine metabolic process / PKA activation in glucagon signalling / behavioral response to cocaine / hair follicle placode formation / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / developmental growth / neuronal action potential / D1 dopamine receptor binding / G-protein alpha-subunit binding / intracellular transport / behavioral fear response / renal water homeostasis / Hedgehog 'off' state / prepulse inhibition / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / GABA-ergic synapse / cellular response to glucagon stimulus / synapse assembly / adenylate cyclase activator activity / presynaptic modulation of chemical synaptic transmission / regulation of insulin secretion / response to amphetamine / positive regulation of synaptic transmission, glutamatergic / positive regulation of release of sequestered calcium ion into cytosol / trans-Golgi network membrane / synaptic transmission, glutamatergic / G protein-coupled receptor activity / negative regulation of inflammatory response to antigenic stimulus / long-term synaptic potentiation / regulation of protein phosphorylation / bone development / visual learning / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / adenylate cyclase-activating G protein-coupled receptor signaling pathway / Activation of the phototransduction cascade / G protein activity / cilium / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / platelet aggregation / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / memory / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / cognition / 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 / vasodilation / G alpha (z) signalling events / protein import into nucleus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production Similarity search - Function | ||||||
Biological species | Homo sapiens (human) synthetic construct (others) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.58 Å | ||||||
Authors | Xiao, T. / Zheng, S. | ||||||
Funding support | China, 1items
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Citation | Journal: 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 |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 7f23.cif.gz | 230.6 KB | Display | PDBx/mmCIF format |
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PDB format | pdb7f23.ent.gz | 172.3 KB | Display | PDB format |
PDBx/mmJSON format | 7f23.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 7f23_validation.pdf.gz | 999.9 KB | Display | wwPDB validaton report |
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Full document | 7f23_full_validation.pdf.gz | 1 MB | Display | |
Data in XML | 7f23_validation.xml.gz | 35.7 KB | Display | |
Data in CIF | 7f23_validation.cif.gz | 54.5 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/f2/7f23 ftp://data.pdbj.org/pub/pdb/validation_reports/f2/7f23 | HTTPS FTP |
-Related structure data
Related structure data | 31426MC 7f0tC 7f1oC 7f1zC 7f24C M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-Guanine nucleotide-binding protein ... , 3 types, 3 molecules ABD
#2: 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 |
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#3: Protein | 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 | 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 |
-Protein / Antibody , 2 types, 2 molecules FE
#1: Protein | 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 |
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#4: Antibody | 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) |
-Non-polymers , 2 types, 2 molecules
#6: Chemical | ChemComp-LDP / |
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#7: Chemical | ChemComp-GTP / |
-Details
Has ligand of interest | Y |
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Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Cryo-EM structure of the GTP-bound dopamine receptor 1 and mini-Gs complex with Nb35 Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT |
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Source (natural) | Organism: Homo sapiens (human) |
Source (recombinant) | Organism: Homo sapiens (human) |
Buffer solution | pH: 7.5 |
Specimen | Conc.: 4 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 281 K |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 64000 X |
Specimen holder | Cryogen: NITROGEN |
Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of real images: 1242 |
-Processing
Software | Name: PHENIX / Version: 1.16_3549: / Classification: refinement | ||||||||||||||||||||||||
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EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
Particle selection | Num. of particles selected: 1968728 | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.58 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 310901 / Num. of class averages: 1 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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