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Open data
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Basic information
Entry | Database: PDB / ID: 7.0E+32 | ||||||
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Title | Serotonin 1D (5-HT1D) receptor-Gi protein complex | ||||||
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![]() | SIGNALING PROTEIN / Serotonin / 5-HT1D / GPCR / Complex / G protein / Gi | ||||||
Function / homology | ![]() intestine smooth muscle contraction / Gi/o-coupled serotonin receptor activity / regulation of behavior / Serotonin receptors / serotonin receptor activity / G protein-coupled serotonin receptor activity / neurotransmitter receptor activity / vasoconstriction / regulation of locomotion / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger ...intestine smooth muscle contraction / Gi/o-coupled serotonin receptor activity / regulation of behavior / Serotonin receptors / serotonin receptor activity / G protein-coupled serotonin receptor activity / neurotransmitter receptor activity / vasoconstriction / regulation of locomotion / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / positive regulation of protein localization to cell cortex / Adenylate cyclase inhibitory pathway / T cell migration / D2 dopamine receptor binding / response to prostaglandin E / G protein-coupled serotonin receptor binding / adenylate cyclase regulator activity / adenylate cyclase-inhibiting serotonin receptor signaling pathway / cellular response to forskolin / regulation of mitotic spindle organization / Regulation of insulin secretion / positive regulation of cholesterol biosynthetic process / G protein-coupled receptor binding / electron transport chain / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / response to peptide hormone / G-protein beta/gamma-subunit complex binding / centriolar satellite / 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 / G protein-coupled acetylcholine receptor signaling pathway / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / GDP binding / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / adenylate cyclase-activating dopamine receptor signaling pathway / GPER1 signaling / Inactivation, recovery and regulation of the phototransduction cascade / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / sensory perception of taste / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / G protein activity / GTPase binding / Ca2+ pathway / retina development in camera-type eye / midbody / cell cortex / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / fibroblast proliferation / G alpha (i) signalling events / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / chemical synaptic transmission / G alpha (q) signalling events / Ras protein signal transduction / periplasmic space / electron transfer activity / Extra-nuclear estrogen signaling / cell population proliferation / ciliary basal body / G protein-coupled receptor signaling pathway / iron ion binding / lysosomal membrane / cell division / GTPase activity / synapse / heme binding / centrosome / dendrite / protein-containing complex binding / GTP binding / nucleolus Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.9 Å | ||||||
![]() | Xu, P. / Huang, S. / Zhang, H. / Mao, C. / Zhou, X.E. / Shen, D.D. / Jiang, Y. / Zhang, Y. / Xu, H.E. | ||||||
Funding support | ![]()
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![]() | ![]() 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. | ||||||
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 218.9 KB | Display | ![]() |
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PDB format | ![]() | 164.4 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 940.4 KB | Display | ![]() |
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Full document | ![]() | 949.6 KB | Display | |
Data in XML | ![]() | 34.1 KB | Display | |
Data in CIF | ![]() | 52 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 30974MC ![]() 7e2xC ![]() 7e2yC ![]() 7e2zC ![]() 7e33C M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Assembly
Deposited unit | ![]()
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Components
-Guanine nucleotide-binding protein ... , 3 types, 3 molecules ABG
#1: Protein | Mass: 40414.047 Da / Num. of mol.: 1 / Mutation: S47N, G203A, E245A, A326S Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#2: Protein | Mass: 37915.496 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
#4: Protein | Mass: 7861.143 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-Antibody / Protein , 2 types, 2 molecules ER
#3: Antibody | Mass: 26466.486 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
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#5: Protein | Mass: 57748.188 Da / Num. of mol.: 1 / Mutation: M7W,H102I,R106L,L127W Source method: isolated from a genetically manipulated source Details: The BRIL (soluble cytochrome b562) protein was used as the expression tag Source: (gene. exp.) ![]() ![]() ![]() Gene: cybC, HTR1D, HTR1DA, HTRL / Production host: ![]() ![]() |
-Non-polymers , 2 types, 2 molecules 


#6: Chemical | ChemComp-SRO / |
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#7: Chemical | ChemComp-CLR / |
-Details
Has ligand of interest | Y |
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Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
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Buffer solution | pH: 7.4 | ||||||||||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||
Vitrification | Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Calibrated magnification: 47847 X / Cs: 2.7 mm |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 70 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
Software | Name: PHENIX / Version: 1.18.2_3874: / Classification: refinement | ||||||||||||||||||||||||
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CTF correction | Type: NONE | ||||||||||||||||||||||||
Particle selection | Num. of particles selected: 1486169 | ||||||||||||||||||||||||
3D reconstruction | Resolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 141501 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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