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Yorodumi- EMDB-47302: Asenapine-bound serotonin 1A (5-HT1A) receptor-Gi1 protein complex -
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Open data
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Basic information
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| Title | Asenapine-bound serotonin 1A (5-HT1A) receptor-Gi1 protein complex | ||||||||||||
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Keywords | GPCR Signaling Complex / Serotonin Receptor / SIGNALING PROTEIN | ||||||||||||
| Function / homology | Function and homology informationregulation of serotonin secretion / Gi/o-coupled serotonin receptor activity / regulation of hormone secretion / regulation of behavior / receptor-receptor interaction / Serotonin receptors / serotonin receptor activity / G protein-coupled serotonin receptor activity / regulation of dopamine metabolic process / serotonin receptor signaling pathway ...regulation of serotonin secretion / Gi/o-coupled serotonin receptor activity / regulation of hormone secretion / regulation of behavior / receptor-receptor interaction / Serotonin receptors / serotonin receptor activity / G protein-coupled serotonin receptor activity / regulation of dopamine metabolic process / serotonin receptor signaling pathway / neurotransmitter receptor activity / serotonin metabolic process / serotonin binding / gamma-aminobutyric acid signaling pathway / exploration behavior / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / regulation of vasoconstriction / behavioral fear response / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / T cell migration / Adenylate cyclase inhibitory pathway / D2 dopamine receptor binding / response to prostaglandin E / adenylate cyclase regulator activity / G protein-coupled serotonin receptor binding / 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 / negative regulation of insulin secretion / electron transport chain / G protein-coupled receptor binding / response to peptide hormone / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / 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 / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / 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 / photoreceptor disc membrane / Sensory perception of sweet, bitter, and umami (glutamate) taste / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / GDP binding / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADP signalling through P2Y purinoceptor 1 / ADORA2B mediated anti-inflammatory cytokines production / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / 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) / retina development in camera-type eye / G protein activity / GTPase binding / Ca2+ pathway / fibroblast proliferation / midbody / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / cell cortex / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / chemical synaptic transmission / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / 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 Similarity search - Function | ||||||||||||
| Biological species | Homo sapiens (human) / ![]() | ||||||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 2.74 Å | ||||||||||||
Authors | Warren AL / Zilberg G / Wacker D | ||||||||||||
| Funding support | United States, 3 items
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Citation | Journal: Sci Adv / Year: 2025Title: Structural determinants of G protein subtype selectivity at the serotonin receptor 5-HT1A. Authors: Audrey L Warren / Gregory Zilberg / Anwar Abbassi / Alejandro Abraham / Shifan Yang / Daniel Wacker / ![]() Abstract: Activation of the serotonin receptor 5-HT1A has been shown to regulate mood and cognition, making 5-HT1A an important target in the treatment of anxiety, depression, and psychosis. Although the ...Activation of the serotonin receptor 5-HT1A has been shown to regulate mood and cognition, making 5-HT1A an important target in the treatment of anxiety, depression, and psychosis. Although the receptor signals through inhibitory G proteins, more work is necessary to understand differences in transducer coupling and its relation to functional activity. To develop a molecular understanding of the differences underlying transducer coupling and activation, we performed structure-activity relationship studies of 5-HT1A with distinct G proteins. Through a combination of in vitro assays, we identified a potent partial agonist that selectively engages a G protein subtype. We further investigated the differences in G protein engagement at 5-HT1A with cryo-electron microscopy, determining structures of 5-HT1A bound to distinct ligands and G protein subtypes. Combined with subsequent structure-guided mutagenesis and signaling assays, our studies uncover both orthosteric and allosteric determinants of agonist-specific stimulation of distinct transducers. | ||||||||||||
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_47302.map.gz | 31.2 MB | EMDB map data format | |
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| Header (meta data) | emd-47302-v30.xml emd-47302.xml | 24.6 KB 24.6 KB | Display Display | EMDB header |
| Images | emd_47302.png | 41.6 KB | ||
| Filedesc metadata | emd-47302.cif.gz | 7.5 KB | ||
| Others | emd_47302_half_map_1.map.gz emd_47302_half_map_2.map.gz | 59.3 MB 59.3 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-47302 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-47302 | HTTPS FTP |
-Validation report
| Summary document | emd_47302_validation.pdf.gz | 715 KB | Display | EMDB validaton report |
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| Full document | emd_47302_full_validation.pdf.gz | 714.6 KB | Display | |
| Data in XML | emd_47302_validation.xml.gz | 12.3 KB | Display | |
| Data in CIF | emd_47302_validation.cif.gz | 14.6 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-47302 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-47302 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9dyfMC ![]() 9dydC ![]() 9dyeC ![]() 9md1C M: atomic model generated by this map C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_47302.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.083 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Half map: #2
| File | emd_47302_half_map_1.map | ||||||||||||
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| Density Histograms |
-Half map: #1
| File | emd_47302_half_map_2.map | ||||||||||||
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Sample components
+Entire : Serotonin 1A (5-HT1A) receptor-Gi1 protein complex
+Supramolecule #1: Serotonin 1A (5-HT1A) receptor-Gi1 protein complex
+Supramolecule #2: Gi1 protein
+Supramolecule #3: Serotonin 1A (5-HT1A) receptor chimera
+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: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
+Macromolecule #4: Soluble cytochrome b562,5-hydroxytryptamine receptor 1A
+Macromolecule #5: (3aS,12bR)-asenapine
+Macromolecule #6: CHOLESTEROL
+Macromolecule #7: [(2R)-1-[oxidanyl-[(2R,3R,5S,6R)-2,3,5,6-tetrakis(oxidanyl)-4-pho...
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.4 Component:
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| Grid | Model: Quantifoil / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE | ||||||||||||
| Vitrification | Cryogen name: ETHANE / Instrument: LEICA EM GP Details: Blot force 3 for 3-5 seconds was used and subsequent grids were screened for ice thickness prior to data collection.. | ||||||||||||
| Details | Sample was mono disperse following gel filtration. The sample was immediately concentrated for CryoEM grid preparation. |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: GATAN K3 (6k x 4k) / Number real images: 4197 / Average electron dose: 64.03 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.8 µm / Nominal defocus min: 0.5 µm / Nominal magnification: 81000 |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi



Keywords
Homo sapiens (human)
Authors
United States, 3 items
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Processing
FIELD EMISSION GUN
