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- PDB-9ll8: Psilocin-bound Serotonin 2A (5-HT2A) receptor-Gi complex -

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Basic information

Entry
Database: PDB / ID: 9ll8
TitlePsilocin-bound Serotonin 2A (5-HT2A) receptor-Gi complex
Components
  • (Guanine nucleotide-binding protein ...) x 3
  • 5-hydroxytryptamine receptor 2A
KeywordsMEMBRANE PROTEIN / complex / agonist
Function / homology
Function and homology information


protein localization to cytoskeleton / positive regulation of heat generation / 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 / cell body fiber / phospholipase C-activating serotonin receptor signaling pathway ...protein localization to cytoskeleton / positive regulation of heat generation / 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 / cell body fiber / phospholipase C-activating serotonin receptor signaling pathway / artery smooth muscle contraction / positive regulation of cytokine production involved in immune response / Serotonin receptors / serotonin receptor activity / G protein-coupled serotonin receptor activity / sensitization / serotonin receptor signaling pathway / urinary bladder smooth muscle contraction / neurotransmitter receptor activity / serotonin binding / positive regulation of platelet aggregation / negative regulation of synaptic transmission, glutamatergic / positive regulation of DNA biosynthetic process / temperature homeostasis / positive regulation of vasoconstriction / detection of temperature stimulus involved in sensory perception of pain / regulation of dopamine secretion / negative regulation of potassium ion transport / protein tyrosine kinase activator activity / positive regulation of execution phase of apoptosis / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / detection of mechanical stimulus involved in sensory perception of pain / positive regulation of fat cell differentiation / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / behavioral response to cocaine / T cell migration / Adenylate cyclase inhibitory pathway / D2 dopamine receptor binding / response to prostaglandin E / release of sequestered calcium ion into cytosol / adenylate cyclase regulator activity / G protein-coupled serotonin receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / presynaptic modulation of chemical synaptic transmission / cellular response to forskolin / regulation of mitotic spindle organization / positive regulation of glycolytic process / dendritic shaft / glycolytic process / Regulation of insulin secretion / positive regulation of cholesterol biosynthetic process / negative regulation of insulin secretion / G protein-coupled receptor binding / response to peptide hormone / caveola / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / memory / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / centriolar satellite / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / intracellular calcium ion homeostasis / 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 / positive regulation of inflammatory response / G beta:gamma signalling through CDC42 / Prostacyclin signalling through prostacyclin receptor / 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 / GDP binding / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / ADP signalling through P2Y purinoceptor 1 / cellular response to catecholamine stimulus / 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 / positive regulation of neuron apoptotic process / G-protein beta-subunit binding / cellular response to prostaglandin E stimulus / heterotrimeric G-protein complex / Inactivation, recovery and regulation of the phototransduction cascade / G alpha (12/13) signalling events / extracellular vesicle
Similarity search - Function
5-Hydroxytryptamine 2A receptor / 5-hydroxytryptamine receptor family / G-protein alpha subunit, group I / Serpentine type 7TM GPCR chemoreceptor Srsx / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G-alpha domain profile. / G protein alpha subunit / G-protein, gamma subunit ...5-Hydroxytryptamine 2A receptor / 5-hydroxytryptamine receptor family / G-protein alpha subunit, group I / Serpentine type 7TM GPCR chemoreceptor Srsx / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G-alpha domain profile. / G protein alpha subunit / G-protein, gamma subunit / G-protein gamma subunit domain profile. / G-protein gamma-like domain / G-protein gamma-like domain superfamily / GGL domain / G protein gamma subunit-like motifs / GGL domain / G protein beta WD-40 repeat protein / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / G-protein coupled receptors family 1 signature. / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family) / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
3-[2-(dimethylamino)ethyl]-1~{H}-indol-4-ol / CHOLESTEROL / 5-hydroxytryptamine receptor 2A / Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Guanine nucleotide-binding protein G(i) subunit alpha-1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.62 Å
AuthorsXu, Z. / Shao, Z.H.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)82404716 China
CitationJournal: To Be Published
Title: Psilocin-bound Serotonin 2A (5-HT2A) receptor-Gi complex
Authors: Xu, Z. / Shao, Z.H.
History
DepositionJan 17, 2025Deposition site: PDBJ / Processing site: PDBC
Revision 1.0Jan 14, 2026Provider: repository / Type: Initial release
Revision 1.0Jan 14, 2026Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Jan 14, 2026Data content type: Additional map / Part number: 1 / Data content type: Additional map / Provider: repository / Type: Initial release
Revision 1.0Jan 14, 2026Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jan 14, 2026Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jan 14, 2026Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Jan 14, 2026Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
B: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
C: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
A: Guanine nucleotide-binding protein G(i) subunit alpha-1
R: 5-hydroxytryptamine receptor 2A
hetero molecules


Theoretical massNumber of molelcules
Total (without water)138,6416
Polymers138,0504
Non-polymers5912
Water18010
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Guanine nucleotide-binding protein ... , 3 types, 3 molecules BCA

#1: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 37416.930 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P62873
#2: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / G gamma-I


Mass: 7861.143 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNG2 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P59768
#3: Protein Guanine nucleotide-binding protein G(i) subunit alpha-1 / Adenylate cyclase-inhibiting G alpha protein


Mass: 40122.660 Da / Num. of mol.: 1 / Mutation: S47N,G203A,E245A,A326S
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNAI1 / Production host: Spodoptera frugiperda (fall armyworm)
References: UniProt: P63096, Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement

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Protein , 1 types, 1 molecules R

#4: Protein 5-hydroxytryptamine receptor 2A / 5-HT-2 / 5-HT-2A / Serotonin receptor 2A


Mass: 52648.945 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: HTR2A, HTR2 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P28223

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Non-polymers , 3 types, 12 molecules

#5: Chemical ChemComp-91Q / 3-[2-(dimethylamino)ethyl]-1~{H}-indol-4-ol


Mass: 204.268 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C12H16N2O / Feature type: SUBJECT OF INVESTIGATION
#6: Chemical ChemComp-CLR / CHOLESTEROL


Mass: 386.654 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C27H46O
#7: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 10 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestY
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: 5-HT2AR-bound DOI in complex with Gi heterotrimer / Type: COMPLEX / Entity ID: #1-#4 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1600 nm / Nominal defocus min: 900 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: TFS FALCON 4i (4k x 4k)

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Processing

EM software
IDNameVersionCategory
1cryoSPARCparticle selection
2PHENIX1.19.2_4158model refinement
13cryoSPARC3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.62 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 291074 / Symmetry type: POINT
RefinementHighest resolution: 2.62 Å
Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS)
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0047108
ELECTRON MICROSCOPYf_angle_d0.6529630
ELECTRON MICROSCOPYf_dihedral_angle_d4.954982
ELECTRON MICROSCOPYf_chiral_restr0.0451118
ELECTRON MICROSCOPYf_plane_restr0.0041206

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