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- EMDB-21243: Structure of a D2 dopamine receptor-G-protein complex in a lipid ... -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-21243 | |||||||||
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Title | Structure of a D2 dopamine receptor-G-protein complex in a lipid membrane | |||||||||
![]() | Catecholamine receptor structure | |||||||||
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![]() | Dopamine / Dopamine receptor / GPCR / G protein / Parkinson's disease / SIGNALING PROTEIN | |||||||||
Function / homology | ![]() negative regulation of dopamine receptor signaling pathway / positive regulation of dopamine uptake involved in synaptic transmission / negative regulation of dephosphorylation / negative regulation of circadian sleep/wake cycle, sleep / positive regulation of glial cell-derived neurotrophic factor production / acid secretion / dopamine neurotransmitter receptor activity, coupled via Gi/Go / nervous system process involved in regulation of systemic arterial blood pressure / response to histamine / regulation of synapse structural plasticity ...negative regulation of dopamine receptor signaling pathway / positive regulation of dopamine uptake involved in synaptic transmission / negative regulation of dephosphorylation / negative regulation of circadian sleep/wake cycle, sleep / positive regulation of glial cell-derived neurotrophic factor production / acid secretion / dopamine neurotransmitter receptor activity, coupled via Gi/Go / nervous system process involved in regulation of systemic arterial blood pressure / response to histamine / regulation of synapse structural plasticity / regulation of locomotion involved in locomotory behavior / neuron-neuron synaptic transmission / adenohypophysis development / positive regulation of renal sodium excretion / Extra-nuclear estrogen signaling / negative regulation of cellular response to hypoxia / regulation of potassium ion transport / hyaloid vascular plexus regression / Adenylate cyclase inhibitory pathway / negative regulation of dopamine secretion / adenylate cyclase-inhibiting dopamine receptor signaling pathway / response to inactivity / orbitofrontal cortex development / cerebral cortex GABAergic interneuron migration / Dopamine receptors / positive regulation of growth hormone secretion / negative regulation of neuron migration / dopamine binding / branching morphogenesis of a nerve / regulation of dopamine uptake involved in synaptic transmission / phospholipase C-activating dopamine receptor signaling pathway / peristalsis / heterotrimeric G-protein binding / drinking behavior / G protein-coupled receptor complex / grooming behavior / behavioral response to ethanol / auditory behavior / positive regulation of G protein-coupled receptor signaling pathway / striatum development / dopaminergic synapse / positive regulation of urine volume / positive regulation of multicellular organism growth / negative regulation of synaptic transmission / G protein-coupled receptor internalization / GTPase activating protein binding / negative regulation of synaptic transmission, glutamatergic / non-motile cilium / heterocyclic compound binding / Adrenaline,noradrenaline inhibits insulin secretion / ADP signalling through P2Y purinoceptor 12 / response to iron ion / G alpha (i) signalling events / adult walking behavior / arachidonate secretion / response to morphine / ciliary membrane / negative regulation of cytosolic calcium ion concentration / neurotransmitter receptor localization to postsynaptic specialization membrane / temperature homeostasis / pigmentation / positive regulation of neuroblast proliferation / positive regulation of cytokinesis / dopamine uptake involved in synaptic transmission / regulation of synaptic transmission, GABAergic / regulation of dopamine secretion / dopamine metabolic process / cellular response to ethanol / response to light stimulus / associative learning / positive regulation of receptor internalization / sperm flagellum / lateral plasma membrane / endocytic vesicle / G-protein alpha-subunit binding / neuroblast proliferation / negative regulation of protein secretion / long-term memory / potassium channel regulator activity / postsynaptic modulation of chemical synaptic transmission / prepulse inhibition / response to axon injury / viral release from host cell by cytolysis / behavioral response to cocaine / positive regulation of protein localization to cell cortex / regulation of sodium ion transport / T cell migration / synapse assembly / D2 dopamine receptor binding / response to prostaglandin E / negative regulation of blood pressure / G protein-coupled serotonin receptor binding / adenylate cyclase regulator activity / cellular response to retinoic acid / adenylate cyclase-inhibiting serotonin receptor signaling pathway / axon terminus / release of sequestered calcium ion into cytosol / peptidoglycan catabolic process / presynaptic modulation of chemical synaptic transmission / ionotropic glutamate receptor binding Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.8 Å | |||||||||
![]() | Yin J / Chen KM | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structure of a D2 dopamine receptor-G-protein complex in a lipid membrane. Authors: Jie Yin / Kuang-Yui M Chen / Mary J Clark / Mahdi Hijazi / Punita Kumari / Xiao-Chen Bai / Roger K Sunahara / Patrick Barth / Daniel M Rosenbaum / ![]() ![]() Abstract: The D2 dopamine receptor (DRD2) is a therapeutic target for Parkinson's disease and antipsychotic drugs. DRD2 is activated by the endogenous neurotransmitter dopamine and synthetic agonist drugs such ...The D2 dopamine receptor (DRD2) is a therapeutic target for Parkinson's disease and antipsychotic drugs. DRD2 is activated by the endogenous neurotransmitter dopamine and synthetic agonist drugs such as bromocriptine, leading to stimulation of G and inhibition of adenylyl cyclase. Here we used cryo-electron microscopy to elucidate the structure of an agonist-bound activated DRD2-G complex reconstituted into a phospholipid membrane. The extracellular ligand-binding site of DRD2 is remodelled in response to agonist binding, with conformational changes in extracellular loop 2, transmembrane domain 5 (TM5), TM6 and TM7, propagating to opening of the intracellular G-binding site. The DRD2-G structure represents, to our knowledge, the first experimental model of a G-protein-coupled receptor-G-protein complex embedded in a phospholipid bilayer, which serves as a benchmark to validate the interactions seen in previous detergent-bound structures. The structure also reveals interactions that are unique to the membrane-embedded complex, including helix 8 burial in the inner leaflet, ordered lysine and arginine side chains in the membrane interfacial regions, and lipid anchoring of the G protein in the membrane. Our model of the activated DRD2 will help to inform the design of subtype-selective DRD2 ligands for multiple human central nervous system disorders. | |||||||||
History |
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Structure visualization
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 78.3 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 16.7 KB 16.7 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 10.1 KB | Display | ![]() |
Images | ![]() | 18.8 KB | ||
Filedesc metadata | ![]() | 6.5 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 580.8 KB | Display | ![]() |
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Full document | ![]() | 580.3 KB | Display | |
Data in XML | ![]() | 11.3 KB | Display | |
Data in CIF | ![]() | 15 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6vmsMC M: atomic model generated by this map C: citing same article ( |
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Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | Catecholamine receptor structure | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.83 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : D2 dopamine receptor-G protein complex
Entire | Name: D2 dopamine receptor-G protein complex |
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Components |
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-Supramolecule #1: D2 dopamine receptor-G protein complex
Supramolecule | Name: D2 dopamine receptor-G protein complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5 |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: Guanine nucleotide-binding protein G(i) subunit alpha-1
Macromolecule | Name: Guanine nucleotide-binding protein G(i) subunit alpha-1 type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 40.382047 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKNTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDAA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...String: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKNTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDAA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI PTQQDVLRTR VKTTGIVETH FTFKDLHFKM FDVGAQRSER KKWIHCFEGV TAIIFCVALS DYDLVLAEDE EM NRMHASM KLFDSICNNK WFTDTSIILF LNKKDLFEEK IKKSPLTICY PEYAGSNTYE EAAAYIQCQF EDLNKRKDTK EIY THFTCA TDTKNVQFVF DAVTDVIIKN NLKDCGLF UniProtKB: Guanine nucleotide-binding protein G(i) subunit alpha-1 |
-Macromolecule #2: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
Macromolecule | Name: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 37.41693 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL ...String: MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL WDIETGQQTT TFTGHTGDVM SLSLAPDTRL FVSGACDASA KLWDVREGMC RQTFTGHESD INAICFFPNG NA FATGSDD ATCRLFDLRA DQELMTYSHD NIICGITSVS FSKSGRLLLA GYDDFNCNVW DALKADRAGV LAGHDNRVSC LGV TDDGMA VATGSWDSFL KIWN UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-Macromolecule #3: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
Macromolecule | Name: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 9.137474 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MGHHHHHHHH GGASNNTASI AQARKLVEQL KMEANIDRIK VSKAAADLMA YCEAHAKEDP LLTPVPASEN PFREKKFFCA IL UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 |
-Macromolecule #4: scFv16
Macromolecule | Name: scFv16 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 27.784896 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS ...String: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS NGNTYLYWFL QRPGQSPQLL IYRMSNLASG VPDRFSGSGS GTAFTLTISR LEAEDVGVYY CMQHLEYPLT FG AGTKLEL KAAAHHHHHH HH |
-Macromolecule #5: Endolysin,D(2) dopamine receptor,D(2) dopamine receptor
Macromolecule | Name: Endolysin,D(2) dopamine receptor,D(2) dopamine receptor type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO / EC number: lysozyme |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 51.384059 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: DYKDDDDANI FEMLRIDEGL RLKIYKNTEG YYTIGIGHLL TKSPSLNAAK SELDKAIGRN TNGVITKDEA EKLFNQDVDA AVRGILRNA KLKPVYDSLD AVRRAALINM VFQMGETGVA GFTNSLRMLQ QKRWDEAAVN LAKSRWYNQT PNRAKRVITT F RTGTWDAY ...String: DYKDDDDANI FEMLRIDEGL RLKIYKNTEG YYTIGIGHLL TKSPSLNAAK SELDKAIGRN TNGVITKDEA EKLFNQDVDA AVRGILRNA KLKPVYDSLD AVRRAALINM VFQMGETGVA GFTNSLRMLQ QKRWDEAAVN LAKSRWYNQT PNRAKRVITT F RTGTWDAY AADRPHYNYY ATLLTLLIAV IVFGNVLVCM AVSREKALQT TTNYLIVSLA VADLLVATLV MPWVVYLEVV GE WKFSRIH CDIFVTLDVM MCTASILNLC AISIDRYTAV AMPMLYNTRY SSKRRVTVMI SIVWVLSFTI SCPLLFGLNN ADQ NECIIA NPAFVVYSSI VSFYVPFIVI LLVYIKIYIV LRRRRKLVNT NRKLSQQKEK KATQLLAIYL GLFIICWLPF FITH ILNIH CDCNIPPVLY SAFTWLGYVN SAINPIIYTT FNIEFRKAFL KILHC UniProtKB: Endolysin, D(2) dopamine receptor, D(2) dopamine receptor |
-Macromolecule #6: bromoergocryptine
Macromolecule | Name: bromoergocryptine / type: ligand / ID: 6 / Number of copies: 1 / Formula: 08Y |
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Molecular weight | Theoretical: 654.594 Da |
Chemical component information | ![]() ChemComp-08Y: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.4 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 64.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |