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- EMDB-21669: HTR2A bound to 25-CN-NBOH in complex with a mini-Galpha-q protein... -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-21669 | |||||||||
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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) | |||||||||
![]() | HTR2A bound to 25-CN-NBOH in complex with a mini-G%u237Aq protein, %u03B2/%uD835%uDEFE subunits and an active-state stabilizing single-chain variable fragment (scFv16) obtained by cryo-electron microscopy (cryoEM) | |||||||||
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![]() | 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 | single particle reconstruction / cryo EM / Resolution: 3.36 Å | |||||||||
![]() | Skiniotis G / Roth B | |||||||||
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
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 3.4 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 19.1 KB 19.1 KB | Display Display | ![]() |
Images | ![]() | 44.8 KB | ||
Filedesc metadata | ![]() | 6.9 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6whaMC M: atomic model generated by this map C: citing same article ( |
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Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | HTR2A bound to 25-CN-NBOH in complex with a mini-G%u237Aq protein, %u03B2/%uD835%uDEFE subunits and an active-state stabilizing single-chain variable fragment (scFv16) obtained by cryo-electron microscopy (cryoEM) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.8521 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : HTR2A bound to 25-CN-NBOH in complex with a mini-Galpha-q protein...
Entire | 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) |
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Components |
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-Supramolecule #1: HTR2A bound to 25-CN-NBOH in complex with a mini-Galpha-q protein...
Supramolecule | 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 / ID: 1 / Parent: 0 / Macromolecule list: #1-#5 |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: Soluble cytochrome b562,5-hydroxytryptamine receptor 2A chimera
Macromolecule | Name: Soluble cytochrome b562,5-hydroxytryptamine receptor 2A chimera type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 56.167309 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MKTIIALSYI FCLVFADYKD DDDAKLQTMH HHHHHHHHHE NLYFQGGTTM ADLEDNWETL NDNLKVIEKA DNAAQVKDAL TKMRAAALD AQKATPPKLE DKSPDSPEMK DFRHGFDILV GQIDDALKLA NEGKVKEAQA AAEQLKTTRN AYIQKYLGSL S LLHLQEKN ...String: MKTIIALSYI FCLVFADYKD DDDAKLQTMH HHHHHHHHHE NLYFQGGTTM ADLEDNWETL NDNLKVIEKA DNAAQVKDAL TKMRAAALD AQKATPPKLE DKSPDSPEMK DFRHGFDILV GQIDDALKLA NEGKVKEAQA AAEQLKTTRN AYIQKYLGSL S LLHLQEKN WSALLTAVVI ILTIAGNILV IMAVSLEKKL QNATNYFLMS LAIADMLLGF LVMPVSMLTI LYGYRWPLPS KL CAVWIYL DVLFSTASIM HLCAISLDRY VAIQNPIHHS RFNSRTKAFL KIIAVWTISV GISMPIPVFG LQDDSKVFKE GSC LLADDN FVLIGSFVSF FIPLTIMVIT YFLTIKSLQK EATLCVSDLG TRAKLASFSF LPQSSLSSEK LFQRSIHREP GSYT GRRTM QSISNEQKAC KVLGIVFFLF VVMWCPFFIT NIMAVICKES CNEDVIGALL NVFVWIGYLS SAVNPLVYTL FNKTY RSAF SRYIQCQYKE NKK UniProtKB: Soluble cytochrome b562, 5-hydroxytryptamine receptor 2A |
-Macromolecule #2: G subunit q (Gi2-mini-Gq chimeric)
Macromolecule | Name: G subunit q (Gi2-mini-Gq chimeric) / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 28.084832 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MGSTVSAEDK AAAERSKMID KNLREDGEKA RRTLRLLLLG ADNSGKSTIV KQMRILHGGS GGSGGTSGIF ETKFQVDKVN FHMFDVGGQ RDERRKWIQC FNDVTAIIFV VDSSDYNRLQ EALNDFKSIW NNRWLRTISV ILFLNKQDLL AEKVLAGKSK I EDYFPEFA ...String: MGSTVSAEDK AAAERSKMID KNLREDGEKA RRTLRLLLLG ADNSGKSTIV KQMRILHGGS GGSGGTSGIF ETKFQVDKVN FHMFDVGGQ RDERRKWIQC FNDVTAIIFV VDSSDYNRLQ EALNDFKSIW NNRWLRTISV ILFLNKQDLL AEKVLAGKSK I EDYFPEFA RYTTPEDATP EPGEDPRVTR AKYFIRKEFV DISTASGDGR HICYPHFTCA VDTENARRIF NDCKDIILQM NL REYNLV |
-Macromolecule #3: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
Macromolecule | Name: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 39.418086 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MHHHHHHLEV LFQGPGSSGS ELDQLRQEAE QLKNQIRDAR KACADATLSQ ITNNIDPVGR IQMRTRRTLR GHLAKIYAMH WGTDSRLLV SASQDGKLII WDSYTTNKVH AIPLRSSWVM TCAYAPSGNY VACGGLDNIC SIYNLKTREG NVRVSRELAG H TGYLSCCR ...String: MHHHHHHLEV LFQGPGSSGS ELDQLRQEAE QLKNQIRDAR KACADATLSQ ITNNIDPVGR IQMRTRRTLR GHLAKIYAMH WGTDSRLLV SASQDGKLII WDSYTTNKVH AIPLRSSWVM TCAYAPSGNY VACGGLDNIC SIYNLKTREG NVRVSRELAG H TGYLSCCR FLDDNQIVTS SGDTTCALWD IETGQQTTTF TGHTGDVMSL SLAPDTRLFV SGACDASAKL WDVREGMCRQ TF TGHESDI NAICFFPNGN AFATGSDDAT CRLFDLRADQ ELMTYSHDNI ICGITSVSFS KSGRLLLAGY DDFNCNVWDA LKA DRAGVL AGHDNRVSCL GVTDDGMAVA TGSWDSFLKI WN UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-Macromolecule #4: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
Macromolecule | Name: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 7.861143 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 |
-Macromolecule #5: single Fab chain (svFv16)
Macromolecule | Name: single Fab chain (svFv16) / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 28.668922 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS ...String: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS NGNTYLYWFL QRPGQSPQLL IYRMSNLASG VPDRFSGSGS GTAFTLTISR LEAEDVGVYY CMQHLEYPLT FG AGTKLEL KAAALEVLFQ GPHHHHHHHH |
-Macromolecule #6: 4-(2-{[(2-hydroxyphenyl)methyl]amino}ethyl)-2,5-dimethoxybenzonitrile
Macromolecule | Name: 4-(2-{[(2-hydroxyphenyl)methyl]amino}ethyl)-2,5-dimethoxybenzonitrile type: ligand / ID: 6 / Number of copies: 1 / Formula: U0G |
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Molecular weight | Theoretical: 312.363 Da |
Chemical component information | ![]() ChemComp-U0G: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 16.7 mg/mL | ||||||||||||||||||
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Buffer | pH: 7.5 Component:
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Grid | Model: Quantifoil R1.2/1.3 / Material: GOLD / Support film - Material: CARBON / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 50 sec. | ||||||||||||||||||
Vitrification | Cryogen name: ETHANE / Instrument: FEI VITROBOT MARK II |
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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 grids imaged: 1 / Number real images: 2368 / Average exposure time: 4.0 sec. / Average electron dose: 80.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 70.0 µm / Calibrated defocus max: 2.5 µm / Calibrated defocus min: 1.0 µm / Calibrated magnification: 57050 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |