+Open data
-Basic information
Entry | Database: PDB / ID: 8jlz | ||||||
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Title | ST1936-5HT6R complex | ||||||
Components |
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Keywords | MEMBRANE PROTEIN / GPCR | ||||||
Function / homology | Function and homology information histamine receptor activity / Serotonin receptors / G protein-coupled serotonin receptor activity / neurotransmitter receptor activity / cerebral cortex cell migration / PKA activation in glucagon signalling / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / hair follicle placode formation / mu-type opioid receptor binding / developmental growth ...histamine receptor activity / Serotonin receptors / G protein-coupled serotonin receptor activity / neurotransmitter receptor activity / cerebral cortex cell migration / PKA activation in glucagon signalling / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / hair follicle placode formation / mu-type opioid receptor binding / developmental growth / corticotropin-releasing hormone receptor 1 binding / positive regulation of TOR signaling / intracellular transport / D1 dopamine receptor binding / Hedgehog 'off' state / beta-2 adrenergic receptor binding / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / adenylate cyclase activator activity / trans-Golgi network membrane / insulin-like growth factor receptor binding / ionotropic glutamate receptor binding / G-protein beta/gamma-subunit complex binding / bone development / 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-activating 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 / cognition / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / Sensory perception of sweet, bitter, and umami (glutamate) taste / cilium / photoreceptor disc membrane / platelet aggregation / 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 / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / adenylate cyclase-activating dopamine receptor signaling pathway / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / G-protein beta-subunit binding / Inactivation, recovery and regulation of the phototransduction cascade / heterotrimeric G-protein complex / G alpha (12/13) signalling events / extracellular vesicle / sensory perception of smell / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / GTPase binding / retina development in camera-type eye / phospholipase C-activating G protein-coupled receptor signaling pathway / Ca2+ pathway / positive regulation of cold-induced thermogenesis / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / G alpha (q) signalling events / chemical synaptic transmission / cell population proliferation / Ras protein signal transduction / Extra-nuclear estrogen signaling / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / dendrite / protein-containing complex binding / GTP binding / signal transduction / extracellular exosome / membrane / metal ion binding / plasma membrane / cytoplasm / cytosol Similarity search - Function | ||||||
Biological species | Homo sapiens (human) Camelus bactrianus (Bactrian camel) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.09 Å | ||||||
Authors | Wen, X. / Sun, J. | ||||||
Funding support | China, 1items
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Citation | Journal: Biochem Biophys Res Commun / Year: 2023 Title: Structural insight into the selective agonist ST1936 binding of serotonin receptor 5-HT6. Authors: Yuan Pei / Xin Wen / Sheng-Chao Guo / Zhi-Shuai Yang / Ru Zhang / Peng Xiao / Jin-Peng Sun / Abstract: The serotonin receptor 5-HTR is an important G-protein-coupled receptor (GPCR) that involved in essential functions within the central and peripheral nervous systems and is linked to various ...The serotonin receptor 5-HTR is an important G-protein-coupled receptor (GPCR) that involved in essential functions within the central and peripheral nervous systems and is linked to various psychiatric disorders. Selective activation of 5-HTR promotes neural stem cell regeneration activity. As a 5-HTR selective agonist, 2-(5 chloro-2-methyl-1H-indol-3-yl)-N, N-dimethylethanolamine (ST1936) has been widely used to investigate the functions of the 5-HTR. The molecular mechanism of how ST1936 is recognized by 5-HTR and how it effectively couples with Gs remain unclear. Here, we reconstituted the ST1936-5-HTR-Gs complex in vitro and solved its cryo-electron microscopy structure at 3.1 Å resolution. Further structural analysis and mutational studies facilitated us to identify the residues of the Y310 and "toggle switch" W281 of the 5-HTR contributed to the higher efficacy of ST1936 compared with 5-HT. By uncovering the structural foundation of how 5-HTR specifically recognizes agonists and elucidating the molecular process of G protein activation, our discoveries offer valuable insights and pave the way for the development of promising 5-HTR agonists. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8jlz.cif.gz | 188.7 KB | Display | PDBx/mmCIF format |
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PDB format | pdb8jlz.ent.gz | 145.3 KB | Display | PDB format |
PDBx/mmJSON format | 8jlz.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 8jlz_validation.pdf.gz | 1.1 MB | Display | wwPDB validaton report |
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Full document | 8jlz_full_validation.pdf.gz | 1.1 MB | Display | |
Data in XML | 8jlz_validation.xml.gz | 36.1 KB | Display | |
Data in CIF | 8jlz_validation.cif.gz | 53.7 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/jl/8jlz ftp://data.pdbj.org/pub/pdb/validation_reports/jl/8jlz | HTTPS FTP |
-Related structure data
Related structure data | 36409MC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-Guanine nucleotide-binding protein ... , 3 types, 3 molecules ABG
#1: Protein | Mass: 45683.434 Da / Num. of mol.: 1 Mutation: S54N, G226A, E268A, N271K, K274D, R280K, T284D, I285T Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNAS, GNAS1, GSP / Production host: Baculovirus expression vector pFastBac1-HM / References: UniProt: P63092 |
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#2: Protein | Mass: 39418.086 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Production host: Baculovirus expression vector pFastBac1-HM / References: UniProt: P62873 |
#3: Protein | Mass: 6375.332 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNG2 / Production host: Baculovirus expression vector pFastBac1-HM / References: UniProt: P59768 |
-Antibody / Protein / Non-polymers , 3 types, 3 molecules NR
#4: Antibody | Mass: 13885.439 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Camelus bactrianus (Bactrian camel) / Production host: Escherichia coli (E. coli) |
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#5: Protein | Mass: 46992.090 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: HTR6 / Production host: Baculovirus expression vector pFastBac1-HM / References: UniProt: P50406 |
#6: Chemical | ChemComp-UQL / |
-Details
Has ligand of interest | Y |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: st1936-HT6 / Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT |
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Source (natural) | Organism: Homo sapiens (human) |
Source (recombinant) | Organism: Baculovirus expression vector pFastBac1-HM |
Buffer solution | pH: 7.4 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm |
Image recording | Electron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
-Processing
EM software | Name: PHENIX / Version: 1.18.2_3874: / Category: model refinement | ||||||||||||||||||||||||
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.09 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 286776 / Symmetry type: POINT | ||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
Displacement parameters | Biso mean: 66.38 Å2 | ||||||||||||||||||||||||
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