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- EMDB-31427: Cryo-EM structure of the GTP-bound dopamine receptor 1 and mini-G... -

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Entry
Database: EMDB / ID: EMD-31427
TitleCryo-EM structure of the GTP-bound dopamine receptor 1 and mini-Gs complex without Nb35
Map data
Sample
  • Complex: Cryo-EM structure of the GTP-bound dopamine receptor 1 and mini-Gs complex without Nb35
    • Protein or peptide: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short,Isoform Gnas-2 of Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
    • Protein or peptide: D(1A) dopamine receptor
    • 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: GUANOSINE-5'-TRIPHOSPHATE
  • Ligand: L-DOPAMINE
KeywordsGPCR / dopamine receptor / mini-Gs / MEMBRANE PROTEIN
Function / homology
Function and homology information


dopamine neurotransmitter receptor activity, coupled via Gs / dopamine neurotransmitter receptor activity / cerebral cortex GABAergic interneuron migration / sensitization / operant conditioning / Dopamine receptors / regulation of dopamine uptake involved in synaptic transmission / modification of postsynaptic structure / dopamine binding / heterotrimeric G-protein binding ...dopamine neurotransmitter receptor activity, coupled via Gs / dopamine neurotransmitter receptor activity / cerebral cortex GABAergic interneuron migration / sensitization / operant conditioning / Dopamine receptors / regulation of dopamine uptake involved in synaptic transmission / modification of postsynaptic structure / dopamine binding / heterotrimeric G-protein binding / G protein-coupled receptor complex / peristalsis / regulation of dopamine metabolic process / grooming behavior / phospholipase C-activating dopamine receptor signaling pathway / positive regulation of neuron migration / habituation / dopamine transport / positive regulation of potassium ion transport / astrocyte development / conditioned taste aversion / striatum development / 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 / behavioral fear response / developmental growth / neuronal action potential / G-protein alpha-subunit binding / D1 dopamine receptor binding / intracellular transport / 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 / response to amphetamine / regulation of insulin secretion / positive regulation of synaptic transmission, glutamatergic / positive regulation of release of sequestered calcium ion into cytosol / trans-Golgi network membrane / synaptic transmission, glutamatergic / long-term synaptic potentiation / G protein-coupled receptor activity / negative regulation of inflammatory response to antigenic stimulus / bone development / regulation of protein phosphorylation / visual learning / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / cilium / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / G protein activity / G-protein activation / platelet aggregation / 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 / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / vasodilation / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / protein import into nucleus / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production
Similarity search - Function
Dopamine D1 receptor / Dopamine receptor family / G-protein alpha subunit, group S / Serpentine type 7TM GPCR chemoreceptor Srsx / 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 ...Dopamine D1 receptor / Dopamine receptor family / G-protein alpha subunit, group S / Serpentine type 7TM GPCR chemoreceptor Srsx / 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. / 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
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)
Methodsingle particle reconstruction / cryo EM / Resolution: 4.16 Å
AuthorsXiao T / Zheng S
Funding support China, 1 items
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 10, 2021-
Header (metadata) releaseJun 15, 2022-
Map releaseJun 15, 2022-
UpdateOct 9, 2024-
Current statusOct 9, 2024Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_31427.png

Downloads & links

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Map

FileDownload / File: emd_31427.map.gz / Format: CCP4 / Size: 22.2 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.09 Å/pix.
x 180 pix.
= 195.66 Å		1.09 Å/pix.
x 180 pix.
= 195.66 Å		1.09 Å/pix.
x 180 pix.
= 195.66 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.087 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.017
Minimum - Maximum-0.05433935 - 0.109230705
Average (Standard dev.)0.00007772201 (±0.0035360535)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions180180180
Spacing180180180
CellA=B=C: 195.66 Å
α=β=γ: 90.0 °

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Supplemental data

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Sample components

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Entire : Cryo-EM structure of the GTP-bound dopamine receptor 1 and mini-G...

EntireName: Cryo-EM structure of the GTP-bound dopamine receptor 1 and mini-Gs complex without Nb35
Components
  • Complex: Cryo-EM structure of the GTP-bound dopamine receptor 1 and mini-Gs complex without Nb35
    • Protein or peptide: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short,Isoform Gnas-2 of Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
    • Protein or peptide: D(1A) dopamine receptor
    • 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: GUANOSINE-5'-TRIPHOSPHATE
  • Ligand: L-DOPAMINE

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Supramolecule #1: Cryo-EM structure of the GTP-bound dopamine receptor 1 and mini-G...

SupramoleculeName: Cryo-EM structure of the GTP-bound dopamine receptor 1 and mini-Gs complex without Nb35
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#4
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Guanine nucleotide-binding protein G(s) subunit alpha isoforms sh...

MacromoleculeName: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short,Isoform Gnas-2 of Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 28.907684 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: NSKTEDQRNE EKAQREANKK IEKQLQKDKQ VYRATHRLLL LGADNSGKST IVKQMRILHG GSGGSGGTSG IFETKFQVDK VNFHMFDVG GQRDERRKWI QCFNDVTAII FVVDSSDYNR LQEALNLFKS IWNNRWLRTI SVILFLNKQD LLAEKVLAGK S KIEDYFPE ...String:
NSKTEDQRNE EKAQREANKK IEKQLQKDKQ VYRATHRLLL LGADNSGKST IVKQMRILHG GSGGSGGTSG IFETKFQVDK VNFHMFDVG GQRDERRKWI QCFNDVTAII FVVDSSDYNR LQEALNLFKS IWNNRWLRTI SVILFLNKQD LLAEKVLAGK S KIEDYFPE FARYTTPEDA TPEPGEDPRV TRAKYFIRDE FLRISTASGD GRHYCYPHFT CAVDTENARR IFNDCRDIIQ RM HLRQYEL L

UniProtKB: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short, Guanine nucleotide-binding protein G(s) subunit alpha isoforms short

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Macromolecule #2: D(1A) dopamine receptor

MacromoleculeName: D(1A) dopamine receptor / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 52.409656 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MKTIIALSYI FCLVFADYKD DDDASIDMRT LNTSAMDGTG LVVERDFSVR ILTACFLSLL ILSTLLGNTL VCAAVIRFRH LRSKVTNFF VISLAVSDLL VAVLVMPWKA VAEIAGFWPF GSFCNIWVAF DIMCSTASIL NLCVISVDRY WAISSPFRYE R KMTPKAAF ...String:
MKTIIALSYI FCLVFADYKD DDDASIDMRT LNTSAMDGTG LVVERDFSVR ILTACFLSLL ILSTLLGNTL VCAAVIRFRH LRSKVTNFF VISLAVSDLL VAVLVMPWKA VAEIAGFWPF GSFCNIWVAF DIMCSTASIL NLCVISVDRY WAISSPFRYE R KMTPKAAF ILISVAWTLS VLISFIPVQL SWHKAKPTSP SDGNATSLAE TIDNCDSSLS RTYAISSSVI SFYIPVAIMI VT YTRIYRI AQKQIRRIAA LERAAVHAKN CQTTTGNGKP VECSQPESSF KMSFKRETKV LKTLSVIMGV FVCCWLPFFI LNC ILPFCG SGETQPFCID SNTFDVFVWF GWANSSLNPI IYAFNADFRK AFSTLLGCYR LCPATNNAIE TVSINNNGAA MFSS HHEPR GSISKECNLV YLIPHAVGSS EDLKKEEAAG IARPLEKLSP ALSVILDYDT DVSLEKIQPI TQNGQHPT

UniProtKB: D(1A) dopamine receptor

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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: Trichoplusia ni (cabbage looper)
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: 7.845078 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString:
MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFSAI L

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

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Macromolecule #5: GUANOSINE-5'-TRIPHOSPHATE

MacromoleculeName: GUANOSINE-5'-TRIPHOSPHATE / type: ligand / ID: 5 / Number of copies: 1 / Formula: GTP
Molecular weightTheoretical: 523.18 Da
Chemical component information

ChemComp-GTP:
GUANOSINE-5'-TRIPHOSPHATE / GTP, energy-carrying molecule*YM

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Macromolecule #6: L-DOPAMINE

MacromoleculeName: L-DOPAMINE / type: ligand / ID: 6 / 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

Concentration4.0 mg/mL
BufferpH: 7.5
GridModel: Quantifoil R1.2/1.3 / Support film - Material: CARBON / Support film - topology: HOLEY
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 281 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal magnification: 64000
Sample stageCooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 1968728
Startup modelType of model: EMDB MAP
Final reconstructionNumber classes used: 1 / Resolution.type: BY AUTHOR / Resolution: 4.16 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 310901
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final 3D classificationNumber classes: 4 / Avg.num./class: 310 / Software - Name: RELION

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