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- EMDB-41776: CryoEM structure of D2 dopamine receptor in complex with GoA KE m... -

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Entry
Database: EMDB / ID: EMD-41776
TitleCryoEM structure of D2 dopamine receptor in complex with GoA KE mutant and dopamine
Map data
Sample
  • Complex: Human DRD2 in complex with heterotrimeric G protein GoA (K46E) and dopamine
    • Protein or peptide: D(2) dopamine receptor
    • Protein or peptide: Guanine nucleotide-binding protein G(o) subunit alpha
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
  • Ligand: L-DOPAMINE
KeywordsGPCR / Dopamine / DRD2 / Dominant Negative / MEMBRANE PROTEIN
Function / homology
Function and homology information


regulation of locomotion involved in locomotory behavior / negative regulation of dopamine receptor signaling pathway / positive regulation of dopamine uptake involved in synaptic transmission / negative regulation of circadian sleep/wake cycle, sleep / acid secretion / positive regulation of glial cell-derived neurotrophic factor production / dopamine neurotransmitter receptor activity, coupled via Gi/Go / auditory behavior / nervous system process involved in regulation of systemic arterial blood pressure / regulation of synapse structural plasticity ...regulation of locomotion involved in locomotory behavior / negative regulation of dopamine receptor signaling pathway / positive regulation of dopamine uptake involved in synaptic transmission / negative regulation of circadian sleep/wake cycle, sleep / acid secretion / positive regulation of glial cell-derived neurotrophic factor production / dopamine neurotransmitter receptor activity, coupled via Gi/Go / auditory behavior / nervous system process involved in regulation of systemic arterial blood pressure / regulation of synapse structural plasticity / response to histamine / positive regulation of renal sodium excretion / neuron-neuron synaptic transmission / adenohypophysis development / cerebral cortex GABAergic interneuron migration / regulation of potassium ion transport / hyaloid vascular plexus regression / negative regulation of neuron migration / Dopamine receptors / adenylate cyclase-inhibiting dopamine receptor signaling pathway / negative regulation of cellular response to hypoxia / orbitofrontal cortex development / response to inactivity / regulation of dopamine uptake involved in synaptic transmission / branching morphogenesis of a nerve / negative regulation of voltage-gated calcium channel activity / dopamine binding / negative regulation of dopamine secretion / positive regulation of growth hormone secretion / heterotrimeric G-protein binding / behavioral response to ethanol / drinking behavior / peristalsis / G protein-coupled receptor complex / phospholipase C-activating dopamine receptor signaling pathway / dopaminergic synapse / grooming behavior / positive regulation of urine volume / positive regulation of G protein-coupled receptor signaling pathway / striatum development / negative regulation of adenylate cyclase activity / negative regulation of synaptic transmission, glutamatergic / positive regulation of multicellular organism growth / G protein-coupled receptor internalization / non-motile cilium / vesicle docking involved in exocytosis / response to morphine / adult walking behavior / response to iron ion / ciliary membrane / regulation of synaptic transmission, GABAergic / G protein-coupled dopamine receptor signaling pathway / regulation of heart contraction / arachidonate secretion / temperature homeostasis / pigmentation / dopamine uptake involved in synaptic transmission / postsynaptic modulation of chemical synaptic transmission / dopamine metabolic process / regulation of dopamine secretion / positive regulation of neuroblast proliferation / heterocyclic compound binding / negative regulation of cytosolic calcium ion concentration / positive regulation of cytokinesis / associative learning / positive regulation of receptor internalization / behavioral response to cocaine / endocytic vesicle / negative regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / mu-type opioid receptor binding / lateral plasma membrane / corticotropin-releasing hormone receptor 1 binding / G-protein alpha-subunit binding / neuroblast proliferation / response to light stimulus / sperm flagellum / response to axon injury / potassium channel regulator activity / GABA-ergic synapse / negative regulation of protein secretion / negative regulation of insulin secretion / long-term memory / G protein-coupled serotonin receptor binding / prepulse inhibition / adenylate cyclase-activating adrenergic receptor signaling pathway / muscle contraction / regulation of sodium ion transport / axon terminus / release of sequestered calcium ion into cytosol / synapse assembly / response to amphetamine / presynaptic modulation of chemical synaptic transmission / negative regulation of blood pressure / negative regulation of innate immune response / phosphatidylinositol 3-kinase/protein kinase B signal transduction / regulation of heart rate / axonogenesis / acrosomal vesicle / excitatory postsynaptic potential / negative regulation of protein phosphorylation
Similarity search - Function
Dopamine D2 receptor / Dopamine receptor family / G-protein alpha subunit, group I / 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 ...Dopamine D2 receptor / Dopamine receptor family / G-protein alpha subunit, group I / 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. / 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 / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Guanine nucleotide-binding protein G(o) subunit alpha / 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
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.28 Å
AuthorsKrumm BE / Kapolka NJ / Fay JF / Roth BL
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Mental Health (NIH/NIMH)MH112205 United States
CitationJournal: Nat Commun / Year: 2024
Title: A neurodevelopmental disorder mutation locks G proteins in the transitory pre-activated state.
Authors: Kevin M Knight / Brian E Krumm / Nicholas J Kapolka / W Grant Ludlam / Meng Cui / Sepehr Mani / Iya Prytkova / Elizabeth G Obarow / Tyler J Lefevre / Wenyuan Wei / Ning Ma / Xi-Ping Huang / ...Authors: Kevin M Knight / Brian E Krumm / Nicholas J Kapolka / W Grant Ludlam / Meng Cui / Sepehr Mani / Iya Prytkova / Elizabeth G Obarow / Tyler J Lefevre / Wenyuan Wei / Ning Ma / Xi-Ping Huang / Jonathan F Fay / Nagarajan Vaidehi / Alan V Smrcka / Paul A Slesinger / Diomedes E Logothetis / Kirill A Martemyanov / Bryan L Roth / Henrik G Dohlman /
Abstract: Many neurotransmitter receptors activate G proteins through exchange of GDP for GTP. The intermediate nucleotide-free state has eluded characterization, due largely to its inherent instability. Here ...Many neurotransmitter receptors activate G proteins through exchange of GDP for GTP. The intermediate nucleotide-free state has eluded characterization, due largely to its inherent instability. Here we characterize a G protein variant associated with a rare neurological disorder in humans. Gα has a charge reversal that clashes with the phosphate groups of GDP and GTP. As anticipated, the purified protein binds poorly to guanine nucleotides yet retains wild-type affinity for G protein βγ subunits. In cells with physiological concentrations of nucleotide, Gα forms a stable complex with receptors and Gβγ, impeding effector activation. Further, we demonstrate that the mutant can be easily purified in complex with dopamine-bound D2 receptors, and use cryo-electron microscopy to determine the structure, including both domains of Gα, without nucleotide or stabilizing nanobodies. These findings reveal the molecular basis for the first committed step of G protein activation, establish a mechanistic basis for a neurological disorder, provide a simplified strategy to determine receptor-G protein structures, and a method to detect high affinity agonist binding in cells.
History
DepositionAug 28, 2023-
Header (metadata) releaseAug 21, 2024-
Map releaseAug 21, 2024-
UpdateAug 21, 2024-
Current statusAug 21, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_41776.png

Downloads & links

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Map

FileDownload / File: emd_41776.map.gz / Format: CCP4 / Size: 172.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
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Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.87 Å/pix.
x 356 pix.
= 311.144 Å		0.87 Å/pix.
x 356 pix.
= 311.144 Å		0.87 Å/pix.
x 356 pix.
= 311.144 Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 0.874 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.1
Minimum - Maximum-0.2542216 - 0.56153995
Average (Standard dev.)-0.00038653292 (±0.010698408)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions356356356
Spacing356356356
CellA=B=C: 311.144 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_41776_half_map_1.map
Projections & Slices
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Half map: #1

Fileemd_41776_half_map_2.map
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Sample components

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Entire : Human DRD2 in complex with heterotrimeric G protein GoA (K46E) an...

EntireName: Human DRD2 in complex with heterotrimeric G protein GoA (K46E) and dopamine
Components
  • Complex: Human DRD2 in complex with heterotrimeric G protein GoA (K46E) and dopamine
    • Protein or peptide: D(2) dopamine receptor
    • Protein or peptide: Guanine nucleotide-binding protein G(o) subunit alpha
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
  • Ligand: L-DOPAMINE

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Supramolecule #1: Human DRD2 in complex with heterotrimeric G protein GoA (K46E) an...

SupramoleculeName: Human DRD2 in complex with heterotrimeric G protein GoA (K46E) and dopamine
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#4
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 120 KDa

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Macromolecule #1: D(2) dopamine receptor

MacromoleculeName: D(2) dopamine receptor / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 50.685355 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MDPLNLSWYD DDLERQNWSR PFNGSDGKAD RPHYNYYATL LTLLIAVIVF GNVLVCMAVS REKALQTTTN YLIVSLAVAD LLVATLVMP WVVYLEVVGE WKFSRIHCDI FVTLDVMMCT ASILNLCAIS IDRYTAVAMP MLYNTRYSSK RRVTVMISIV W VLSFTISC ...String:
MDPLNLSWYD DDLERQNWSR PFNGSDGKAD RPHYNYYATL LTLLIAVIVF GNVLVCMAVS REKALQTTTN YLIVSLAVAD LLVATLVMP WVVYLEVVGE WKFSRIHCDI FVTLDVMMCT ASILNLCAIS IDRYTAVAMP MLYNTRYSSK RRVTVMISIV W VLSFTISC PLLFGLNNAD QNECIIANPA FVVYSSIVSF YVPFIVTLLV YIKIYIVLRR RRKRVNTKRS SRAFRAHLRA PL KGNCTHP EDMKLCTVIM KSNGSFPVNR RRVEAARRAQ ELEMEMLSST SPPERTRYSP IPPSHHQLTL PDPSHHGLHS TPD SPAKPE KNGHAKDHPK IAKIFEIQTM PNGKTRTSLK TMSRRKLSQQ KEKKATQMLA IVLGVFIICW LPFFITHILN IHCD CNIPP VLYSAFTWLG YVNSAVNPII YTTFNIEFRK AFLKILHC

UniProtKB: D(2) dopamine receptor

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Macromolecule #2: Guanine nucleotide-binding protein G(o) subunit alpha

MacromoleculeName: Guanine nucleotide-binding protein G(o) subunit alpha / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 40.100434 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MGCTLSAEER AALERSKAIE KNLKEDGISA AKDVKLLLLG AGESGESTIV KQMKIIHEDG FSGEDVKQYK PVVYSNTIQS LAAIVRAMD TLGIEYGDKE RKADAKMVCD VVSRMEDTEP FSAELLSAMM RLWGDSGIQE CFNRSREYQL NDSAKYYLDS L DRIGAADY ...String:
MGCTLSAEER AALERSKAIE KNLKEDGISA AKDVKLLLLG AGESGESTIV KQMKIIHEDG FSGEDVKQYK PVVYSNTIQS LAAIVRAMD TLGIEYGDKE RKADAKMVCD VVSRMEDTEP FSAELLSAMM RLWGDSGIQE CFNRSREYQL NDSAKYYLDS L DRIGAADY QPTEQDILRT RVKTTGIVET HFTFKNLHFR LFDVGGQRSE RKKWIHCFED VTAIIFCVAL SGYDQVLHED ET TNRMHES LMLFDSICNN KFFIDTSIIL FLNKKDLFGE KIKKSPLTIC FPEYTGPNTY EDAAAYIQAQ FESKNRSPNK EIY CHMTCA TDTNNIQVVF DAVTDIIIAN NLRGCGLY

UniProtKB: Guanine nucleotide-binding protein G(o) subunit alpha

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Macromolecule #3: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

MacromoleculeName: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 39.418086 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MHHHHHHLEV LFQGPGSSGS ELDQLRQEAE QLKNQIRDAR KACADATLSQ ITNNIDPVGR IQMRTRRTLR GHLAKIYAMH WGTDSRLLV SASQDGKLII WDSYTTNKVH AIPLRSSWVM TCAYAPSGNY VACGGLDNIC SIYNLKTREG NVRVSRELAG H TGYLSCCR ...String:
MHHHHHHLEV LFQGPGSSGS ELDQLRQEAE QLKNQIRDAR KACADATLSQ ITNNIDPVGR IQMRTRRTLR GHLAKIYAMH WGTDSRLLV SASQDGKLII WDSYTTNKVH AIPLRSSWVM TCAYAPSGNY VACGGLDNIC SIYNLKTREG NVRVSRELAG H TGYLSCCR FLDDNQIVTS SGDTTCALWD IETGQQTTTF TGHTGDVMSL SLAPDTRLFV SGACDASAKL WDVREGMCRQ TF TGHESDI NAICFFPNGN AFATGSDDAT CRLFDLRADQ ELMTYSHDNI ICGITSVSFS KSGRLLLAGY DDFNCNVWDA LKA DRAGVL AGHDNRVSCL GVTDDGMAVA TGSWDSFLKI WN

UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

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Macromolecule #4: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

MacromoleculeName: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 7.861143 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString:
MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L

UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

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Macromolecule #5: L-DOPAMINE

MacromoleculeName: L-DOPAMINE / type: ligand / ID: 5 / Number of copies: 1 / Formula: LDP
Molecular weightTheoretical: 153.178 Da
Chemical component information

ChemComp-LDP:
L-DOPAMINE / medication*YM

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration3.5 mg/mL
BufferpH: 7.5
VitrificationCryogen name: ETHANE-PROPANE

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Electron microscopy

MicroscopeFEI TALOS ARCTICA
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 55.0 e/Å2
Electron beamAcceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.5 µm / Nominal defocus min: 0.7000000000000001 µm
Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company

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Image processing

Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

8irs

Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.28 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 153270
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD

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