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- PDB-6wha: HTR2A bound to 25-CN-NBOH in complex with a mini-Galpha-q protein... -
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Basic information
Entry | Database: PDB / ID: 6wha | |||||||||
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Title | HTR2A bound to 25-CN-NBOH in complex with a mini-Galpha-q protein, beta/gamma subunits and an active-state stabilizing single-chain variable fragment (scFv16) obtained by cryo-electron microscopy (cryoEM) | |||||||||
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![]() | MEMBRANE PROTEIN/IMMUNE SYSTEM / 5HT2A / G protein / 25-CN-NBOH / GPCR / cryo-EM / MEMBRANE PROTEIN-IMMUNE SYSTEM complex | |||||||||
Function / homology | ![]() positive regulation of heat generation / protein localization to cytoskeleton / 1-(4-iodo-2,5-dimethoxyphenyl)propan-2-amine binding / Gq/11-coupled serotonin receptor activity / positive regulation of phosphatidylinositol biosynthetic process / G protein-coupled serotonin receptor signaling pathway / G protein-coupled serotonin receptor complex / neurofilament / Serotonin receptors / serotonin receptor activity ...positive regulation of heat generation / protein localization to cytoskeleton / 1-(4-iodo-2,5-dimethoxyphenyl)propan-2-amine binding / Gq/11-coupled serotonin receptor activity / positive regulation of phosphatidylinositol biosynthetic process / G protein-coupled serotonin receptor signaling pathway / G protein-coupled serotonin receptor complex / neurofilament / Serotonin receptors / serotonin receptor activity / cell body fiber / G protein-coupled serotonin receptor activity / phospholipase C-activating serotonin receptor signaling pathway / artery smooth muscle contraction / positive regulation of cytokine production involved in immune response / serotonin receptor signaling pathway / sensitization / urinary bladder smooth muscle contraction / neurotransmitter receptor activity / serotonin binding / negative regulation of synaptic transmission, glutamatergic / positive regulation of platelet aggregation / positive regulation of DNA biosynthetic process / temperature homeostasis / regulation of dopamine secretion / behavioral response to cocaine / negative regulation of potassium ion transport / detection of temperature stimulus involved in sensory perception of pain / protein tyrosine kinase activator activity / positive regulation of execution phase of apoptosis / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / positive regulation of fat cell differentiation / detection of mechanical stimulus involved in sensory perception of pain / positive regulation of vasoconstriction / release of sequestered calcium ion into cytosol / presynaptic modulation of chemical synaptic transmission / dendritic shaft / positive regulation of glycolytic process / glycolytic process / electron transport chain / caveola / memory / 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 / intracellular calcium ion homeostasis / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / positive regulation of inflammatory response / 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 / 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 / positive regulation of neuron apoptotic process / 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) / presynaptic membrane / virus receptor activity / GTPase binding / positive regulation of cytosolic calcium ion concentration / Ca2+ pathway / retina development in camera-type eye / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / cytoplasmic vesicle / fibroblast proliferation / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / chemical synaptic transmission / G alpha (q) signalling events / postsynaptic membrane / Ras protein signal transduction / periplasmic space Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.36 Å | |||||||||
![]() | Skiniotis, G. / Roth, B. / Kim, K. / Panova, O. | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structure of a Hallucinogen-Activated Gq-Coupled 5-HT Serotonin Receptor. Authors: Kuglae Kim / Tao Che / Ouliana Panova / Jeffrey F DiBerto / Jiankun Lyu / Brian E Krumm / Daniel Wacker / Michael J Robertson / Alpay B Seven / David E Nichols / Brian K Shoichet / Georgios ...Authors: Kuglae Kim / Tao Che / Ouliana Panova / Jeffrey F DiBerto / Jiankun Lyu / Brian E Krumm / Daniel Wacker / Michael J Robertson / Alpay B Seven / David E Nichols / Brian K Shoichet / Georgios Skiniotis / Bryan L Roth / ![]() Abstract: Hallucinogens like lysergic acid diethylamide (LSD), psilocybin, and substituted N-benzyl phenylalkylamines are widely used recreationally with psilocybin being considered as a therapeutic for many ...Hallucinogens like lysergic acid diethylamide (LSD), psilocybin, and substituted N-benzyl phenylalkylamines are widely used recreationally with psilocybin being considered as a therapeutic for many neuropsychiatric disorders including depression, anxiety, and substance abuse. How psychedelics mediate their actions-both therapeutic and hallucinogenic-are not understood, although activation of the 5-HT serotonin receptor (HTR2A) is key. To gain molecular insights into psychedelic actions, we determined the active-state structure of HTR2A bound to 25-CN-NBOH-a prototypical hallucinogen-in complex with an engineered Gαq heterotrimer by cryoelectron microscopy (cryo-EM). We also obtained the X-ray crystal structures of HTR2A complexed with the arrestin-biased ligand LSD or the inverse agonist methiothepin. Comparisons of these structures reveal determinants responsible for HTR2A-Gαq protein interactions as well as the conformational rearrangements involved in active-state transitions. Given the potential therapeutic actions of hallucinogens, these findings could accelerate the discovery of more selective drugs for the treatment of a variety of neuropsychiatric disorders. | |||||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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PDBx/mmCIF format | ![]() | 203.2 KB | Display | ![]() |
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PDB format | ![]() | 149.8 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 21669MC M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
-Protein , 2 types, 2 molecules AB
#1: Protein | Mass: 56167.309 Da / Num. of mol.: 1 Fragment: cybC (UNP residues 23-127) + linker + HTR2A (UNP residues 66-404) Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() Gene: cybC, HTR2A, HTR2 / Production host: ![]() ![]() |
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#2: Protein | Mass: 28084.832 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-Guanine nucleotide-binding protein ... , 2 types, 2 molecules CD
#3: Protein | Mass: 39418.086 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#4: Protein | Mass: 7861.143 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-Antibody / Non-polymers , 2 types, 2 molecules E

#5: Antibody | Mass: 28668.922 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#6: Chemical | ChemComp-U0G / |
-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
Component | Name: HTR2A bound to 25-CN-NBOH in complex with a mini-Galpha-q protein, beta/gamma subunits and an active-state stabilizing single-chain variable fragment (scFv16) obtained by cryo-electron microscopy (cryoEM) Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT | ||||||||||||||||||||||||||||||||||||
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Source (natural) | Organism: ![]() | ||||||||||||||||||||||||||||||||||||
Source (recombinant) | Organism: ![]() ![]() | ||||||||||||||||||||||||||||||||||||
Buffer solution | pH: 7.5 | ||||||||||||||||||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 16.7 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||||||||
Specimen support | Grid material: GOLD / Grid type: Quantifoil R1.2/1.3 | ||||||||||||||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK II / Cryogen name: ETHANE |
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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: 57050 X / Calibrated defocus min: 1000 nm / Calibrated defocus max: 2500 nm / Cs: 2.7 mm / C2 aperture diameter: 70 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 4 sec. / Electron dose: 80 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 2368 |
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Processing
Software | Name: PHENIX / Version: 1.17.1_3660: / Classification: refinement | ||||||||||||||||||||||||
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EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
Particle selection | Num. of particles selected: 2712613 | ||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.36 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 166497 / Num. of class averages: 1 / Symmetry type: POINT | ||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
Displacement parameters | Biso mean: 59.95 Å2 | ||||||||||||||||||||||||
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