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- EMDB-22511: Cryo-EM structure of Bromocriptine-bound dopamine receptor 2 in c... -
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Basic information
Entry | Database: EMDB / ID: EMD-22511 | |||||||||||||||
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Title | Cryo-EM structure of Bromocriptine-bound dopamine receptor 2 in complex with Gi protein | |||||||||||||||
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Function / homology | ![]() 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 / adenohypophysis development / neuron-neuron synaptic transmission / hyaloid vascular plexus regression / cerebral cortex GABAergic interneuron migration / regulation of potassium ion transport / 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 / dopamine binding / regulation of dopamine uptake involved in synaptic transmission / branching morphogenesis of a nerve / negative regulation of voltage-gated calcium channel activity / negative regulation of dopamine secretion / positive regulation of growth hormone secretion / heterotrimeric G-protein binding / behavioral response to ethanol / dopaminergic synapse / drinking behavior / peristalsis / G protein-coupled receptor complex / phospholipase C-activating dopamine receptor signaling pathway / grooming behavior / positive regulation of G protein-coupled receptor signaling pathway / positive regulation of urine volume / striatum development / negative regulation of adenylate cyclase activity / positive regulation of multicellular organism growth / negative regulation of synaptic transmission, glutamatergic / G protein-coupled receptor internalization / non-motile cilium / response to morphine / adult walking behavior / response to iron ion / ciliary membrane / dopamine uptake involved in synaptic transmission / regulation of synaptic transmission, GABAergic / arachidonic acid secretion / temperature homeostasis / pigmentation / postsynaptic modulation of chemical synaptic transmission / heterocyclic compound binding / dopamine metabolic process / positive regulation of neuroblast proliferation / negative regulation of cytosolic calcium ion concentration / regulation of dopamine secretion / positive regulation of cytokinesis / associative learning / positive regulation of receptor internalization / behavioral response to cocaine / lateral plasma membrane / endocytic vesicle / G-protein alpha-subunit binding / neuroblast proliferation / response to axon injury / response to light stimulus / GABA-ergic synapse / potassium channel regulator activity / sperm flagellum / negative regulation of protein secretion / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex / negative regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / negative regulation of insulin secretion / regulation of cAMP-mediated signaling / D2 dopamine receptor binding / prepulse inhibition / long-term memory / G protein-coupled serotonin receptor binding / axon terminus / adenylate cyclase-activating adrenergic receptor signaling pathway / regulation of sodium ion transport / release of sequestered calcium ion into cytosol / regulation of mitotic spindle organization / cellular response to forskolin / synapse assembly / response to amphetamine / presynaptic modulation of chemical synaptic transmission / negative regulation of blood pressure / negative regulation of innate immune response / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / excitatory postsynaptic potential / regulation of heart rate / negative regulation of cell migration / axonogenesis / phosphatidylinositol 3-kinase/protein kinase B signal transduction Similarity search - Function | |||||||||||||||
Biological species | ![]() | |||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.8 Å | |||||||||||||||
![]() | Zhuang Y / Xu P / Mao C / Wang L / Krumm B / Zhou XE / Huang S / Liu H / Cheng X / Huang X-P ...Zhuang Y / Xu P / Mao C / Wang L / Krumm B / Zhou XE / Huang S / Liu H / Cheng X / Huang X-P / Sheng D-D / Xu T / Liu Y-F / Wang Y / Guo J / Jiang Y / Jiang H / Melcher K / Roth BL / Zhang Y / Zhang C / Xu HE | |||||||||||||||
Funding support | ![]() ![]()
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![]() | ![]() Title: Structural insights into the human D1 and D2 dopamine receptor signaling complexes. Authors: Youwen Zhuang / Peiyu Xu / Chunyou Mao / Lei Wang / Brian Krumm / X Edward Zhou / Sijie Huang / Heng Liu / Xi Cheng / Xi-Ping Huang / Dan-Dan Shen / Tinghai Xu / Yong-Feng Liu / Yue Wang / ...Authors: Youwen Zhuang / Peiyu Xu / Chunyou Mao / Lei Wang / Brian Krumm / X Edward Zhou / Sijie Huang / Heng Liu / Xi Cheng / Xi-Ping Huang / Dan-Dan Shen / Tinghai Xu / Yong-Feng Liu / Yue Wang / Jia Guo / Yi Jiang / Hualiang Jiang / Karsten Melcher / Bryan L Roth / Yan Zhang / Cheng Zhang / H Eric Xu / ![]() ![]() Abstract: The D1- and D2-dopamine receptors (D1R and D2R), which signal through G and G, respectively, represent the principal stimulatory and inhibitory dopamine receptors in the central nervous system. D1R ...The D1- and D2-dopamine receptors (D1R and D2R), which signal through G and G, respectively, represent the principal stimulatory and inhibitory dopamine receptors in the central nervous system. D1R and D2R also represent the main therapeutic targets for Parkinson's disease, schizophrenia, and many other neuropsychiatric disorders, and insight into their signaling is essential for understanding both therapeutic and side effects of dopaminergic drugs. Here, we report four cryoelectron microscopy (cryo-EM) structures of D1R-G and D2R-G signaling complexes with selective and non-selective dopamine agonists, including two currently used anti-Parkinson's disease drugs, apomorphine and bromocriptine. These structures, together with mutagenesis studies, reveal the conserved binding mode of dopamine agonists, the unique pocket topology underlying ligand selectivity, the conformational changes in receptor activation, and potential structural determinants for G protein-coupling selectivity. These results provide both a molecular understanding of dopamine signaling and multiple structural templates for drug design targeting the dopaminergic system. | |||||||||||||||
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 | ![]() | 26.4 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 17.2 KB 17.2 KB | Display Display | ![]() |
Images | ![]() | 63.8 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 339.7 KB | Display | ![]() |
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Full document | ![]() | 339.2 KB | Display | |
Data in XML | ![]() | 5.6 KB | Display | |
Data in CIF | ![]() | 6.3 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7jvrMC ![]() 7jv5C ![]() 7jvpC ![]() 7jvqC 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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Voxel size | X=Y=Z: 1.045 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 : Bromocriptin-bound dopamine receptor 2 in complex with Gi protein
Entire | Name: Bromocriptin-bound dopamine receptor 2 in complex with Gi protein |
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Components |
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-Supramolecule #1: Bromocriptin-bound dopamine receptor 2 in complex with Gi protein
Supramolecule | Name: Bromocriptin-bound dopamine receptor 2 in complex with Gi protein type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5 |
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Source (natural) | Organism: ![]() |
Recombinant expression | Organism: ![]() ![]() |
-Macromolecule #1: Soluble cytochrome b562,D(2) dopamine receptor
Macromolecule | Name: Soluble cytochrome b562,D(2) dopamine receptor / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 67.234578 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: DYKDDDDAKL QTMHHHHHHH HHHHHHHHAD LEDNWETLND NLKVIEKADN AAQVKDALTK MRAAALDAQK ATPPKLEDKS PDSPEMKDF RHGFDILVGQ IDDALKLANE GKVKEAQAAA EQLKTTRNAY IQKYLASENL YFQGGTMDPL NLSWYDDDLE R QNWSRPFN ...String: DYKDDDDAKL QTMHHHHHHH HHHHHHHHAD LEDNWETLND NLKVIEKADN AAQVKDALTK MRAAALDAQK ATPPKLEDKS PDSPEMKDF RHGFDILVGQ IDDALKLANE GKVKEAQAAA EQLKTTRNAY IQKYLASENL YFQGGTMDPL NLSWYDDDLE R QNWSRPFN GSDGKADRPH YNYYATLLTL LIAVIVFGNV LVCMAVSREK ALQTTTNYLI VSLAVADLLV ATLVMPWVVY LE VVGEWKF SRIHCDIFVT LDVMMCTASI LNLCAISIDR YTAVAMPMLY NTRYSSKRRV TVMISIVWVL SFTISCPLLF GLN NADQNE CIIANPAFVV YSSIVSFYVP FIVTLLVYIK IYIVLRRRRK RVNTKRSSRA FRAHLRAPLK GNCTHPEDMK LCTV IMKSN GSFPVNRRRV EAARRAQELE MEMLSSTSPP ERTRYSPIPP SHHQLTLPDP SHHGLHSTPD SPAKPEKNGH AKDHP KIAK IFEIQTMPNG KTRTSLKTMS RRKLSQQKEK KATQMLAIVL GVFIICWLPF FITHILNIHC DCNIPPVLYS AFTWLG YVN SAVNPIIYTT FNIEFRKAFL KILHC |
-Macromolecule #2: 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: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 40.414047 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKNTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...String: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKNTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA 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 THFTCS TDTKNVQFVF DAVTDVIIKN NLKDCGLF |
-Macromolecule #3: 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: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 38.146707 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MGSLLQSELD QLRQEAEQLK NQIRDARKAC ADATLSQITN NIDPVGRIQM RTRRTLRGHL AKIYAMHWGT DSRLLVSASQ DGKLIIWDS YTTNKVHAIP LRSSWVMTCA YAPSGNYVAC GGLDNICSIY NLKTREGNVR VSRELAGHTG YLSCCRFLDD N QIVTSSGD ...String: MGSLLQSELD QLRQEAEQLK NQIRDARKAC ADATLSQITN NIDPVGRIQM RTRRTLRGHL AKIYAMHWGT DSRLLVSASQ DGKLIIWDS YTTNKVHAIP LRSSWVMTCA YAPSGNYVAC GGLDNICSIY NLKTREGNVR VSRELAGHTG YLSCCRFLDD N QIVTSSGD TTCALWDIET GQQTTTFTGH TGDVMSLSLA PDTRLFVSGA CDASAKLWDV REGMCRQTFT GHESDINAIC FF PNGNAFA TGSDDATCRL FDLRADQELM TYSHDNIICG ITSVSFSKSG RLLLAGYDDF NCNVWDALKA DRAGVLAGHD NRV SCLGVT DDGMAVATGS WDSFLKIWNG SS |
-Macromolecule #4: 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: 4 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 7.861143 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L |
-Macromolecule #5: Antibody fragment ScFv16
Macromolecule | Name: Antibody fragment ScFv16 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: synthetic construct (others) |
Molecular weight | Theoretical: 28.813047 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 KGSLEVLFQG PAAAHHHHHH HH |
-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: 7.2 |
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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 K2 BASE (4k 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 |
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Image processing
Startup model | Type of model: PDB ENTRY PDB model - PDB ID: |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 632558 |
Initial angle assignment | Type: NOT APPLICABLE |
Final angle assignment | Type: NOT APPLICABLE |