+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-30974 | |||||||||
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Title | Serotonin 1D (5-HT1D) receptor-Gi protein complex | |||||||||
Map data | ||||||||||
Sample |
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Function / homology | Function and homology information intestine smooth muscle contraction / adenylate cyclase-inhibiting serotonin receptor signaling pathway / regulation of behavior / Serotonin receptors / serotonin binding / G protein-coupled serotonin receptor activity / vasoconstriction / neurotransmitter receptor activity / regulation of locomotion / plasma membrane => GO:0005886 ...intestine smooth muscle contraction / adenylate cyclase-inhibiting serotonin receptor signaling pathway / regulation of behavior / Serotonin receptors / serotonin binding / G protein-coupled serotonin receptor activity / vasoconstriction / neurotransmitter receptor activity / regulation of locomotion / plasma membrane => GO:0005886 / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex / regulation of cAMP-mediated signaling / D2 dopamine receptor binding / G protein-coupled serotonin receptor binding / regulation of mitotic spindle organization / cellular response to forskolin / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / Regulation of insulin secretion / G protein-coupled receptor binding / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein activation / G protein-coupled acetylcholine receptor signaling pathway / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Sensory perception of sweet, bitter, and umami (glutamate) taste / response to peptide hormone / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / adenylate cyclase-activating dopamine receptor signaling pathway / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / sensory perception of taste / GPER1 signaling / GDP binding / G-protein beta-subunit binding / heterotrimeric G-protein complex / Inactivation, recovery and regulation of the phototransduction cascade / extracellular vesicle / G alpha (12/13) signalling events / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / retina development in camera-type eye / GTPase binding / Ca2+ pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / cell cortex / midbody / G alpha (i) signalling events / fibroblast proliferation / chemical synaptic transmission / G alpha (s) signalling events / G alpha (q) signalling events / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / electron transfer activity / periplasmic space / cell cycle / iron ion binding / G protein-coupled receptor signaling pathway / cell division / lysosomal membrane / GTPase activity / centrosome / dendrite / synapse / heme binding / protein-containing complex binding / GTP binding / nucleolus / magnesium ion binding / signal transduction / extracellular exosome / nucleoplasm / membrane / plasma membrane / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) / Mus musculus (house mouse) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.9 Å | |||||||||
Authors | Xu P / Huang S / Zhang H / Mao C / Zhou XE / Shen DD / Jiang Y / Zhang Y / Xu HE | |||||||||
Funding support | China, 1 items
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Citation | Journal: Nature / Year: 2021 Title: Structural insights into the lipid and ligand regulation of serotonin receptors. Authors: Peiyu Xu / Sijie Huang / Huibing Zhang / Chunyou Mao / X Edward Zhou / Xi Cheng / Icaro A Simon / Dan-Dan Shen / Hsin-Yung Yen / Carol V Robinson / Kasper Harpsøe / Bo Svensson / Jia Guo / ...Authors: Peiyu Xu / Sijie Huang / Huibing Zhang / Chunyou Mao / X Edward Zhou / Xi Cheng / Icaro A Simon / Dan-Dan Shen / Hsin-Yung Yen / Carol V Robinson / Kasper Harpsøe / Bo Svensson / Jia Guo / Hualiang Jiang / David E Gloriam / Karsten Melcher / Yi Jiang / Yan Zhang / H Eric Xu / Abstract: Serotonin, or 5-hydroxytryptamine (5-HT), is an important neurotransmitter that activates the largest subtype family of G-protein-coupled receptors. Drugs that target 5-HT, 5-HT, 5-HT and other 5-HT ...Serotonin, or 5-hydroxytryptamine (5-HT), is an important neurotransmitter that activates the largest subtype family of G-protein-coupled receptors. Drugs that target 5-HT, 5-HT, 5-HT and other 5-HT receptors are used to treat numerous disorders. 5-HT receptors have high levels of basal activity and are subject to regulation by lipids, but the structural basis for the lipid regulation and basal activation of these receptors and the pan-agonism of 5-HT remains unclear. Here we report five structures of 5-HT receptor-G-protein complexes: 5-HT in the apo state, bound to 5-HT or bound to the antipsychotic drug aripiprazole; 5-HT bound to 5-HT; and 5-HT in complex with a 5-HT- and 5-HT-selective agonist, BRL-54443. Notably, the phospholipid phosphatidylinositol 4-phosphate is present at the G-protein-5-HT interface, and is able to increase 5-HT-mediated G-protein activity. The receptor transmembrane domain is surrounded by cholesterol molecules-particularly in the case of 5-HT, in which cholesterol molecules are directly involved in shaping the ligand-binding pocket that determines the specificity for aripiprazol. Within the ligand-binding pocket of apo-5-HT are structured water molecules that mimic 5-HT to activate the receptor. Together, our results address a long-standing question of how lipids and water molecules regulate G-protein-coupled receptors, reveal how 5-HT acts as a pan-agonist, and identify the determinants of drug recognition in 5-HT receptors. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_30974.map.gz | 17.6 MB | EMDB map data format | |
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Header (meta data) | emd-30974-v30.xml emd-30974.xml | 18.2 KB 18.2 KB | Display Display | EMDB header |
Images | emd_30974.png | 48.7 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-30974 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-30974 | HTTPS FTP |
-Related structure data
Related structure data | 7e32MC 7e2xC 7e2yC 7e2zC 7e33C M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_30974.map.gz / Format: CCP4 / Size: 27 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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
-Sample components
+Entire : Serotonin 1D (5-HT1D) receptor-Gi protein complex
+Supramolecule #1: Serotonin 1D (5-HT1D) receptor-Gi protein complex
+Supramolecule #2: receptor-Gi protein
+Supramolecule #3: scFv16
+Macromolecule #1: 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 #3: scFv16
+Macromolecule #4: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
+Macromolecule #5: Soluble cytochrome b562,5-hydroxytryptamine receptor 1D
+Macromolecule #6: SEROTONIN
+Macromolecule #7: CHOLESTEROL
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.4 |
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Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Calibrated magnification: 47847 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Cs: 2.7 mm |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Image recording | Film or detector model: GATAN K3 (6k x 4k) / Detector mode: COUNTING / Average electron dose: 70.0 e/Å2 |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Particle selection | Number selected: 1486169 |
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Initial angle assignment | Type: RANDOM ASSIGNMENT |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |
Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 141501 |