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Open data
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Basic information
| Entry | ![]() | |||||||||
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| Title | Psilocin-bound Serotonin 2A (5-HT2A) receptor-Gi complex | |||||||||
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Keywords | complex / agonist / MEMBRANE PROTEIN | |||||||||
| Function / homology | Function and homology informationprotein 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 receptor activity / Serotonin receptors / G protein-coupled serotonin receptor activity / serotonin receptor signaling pathway / sensitization / 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 / 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 vasoconstriction / 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 / behavioral response to cocaine / positive regulation of protein localization to cell cortex / T cell migration / Adenylate cyclase inhibitory pathway / response to prostaglandin E / D2 dopamine receptor binding / release of sequestered calcium ion into cytosol / G protein-coupled serotonin receptor binding / adenylate cyclase regulator activity / adenylate cyclase-inhibiting serotonin receptor signaling pathway / presynaptic modulation of chemical synaptic transmission / cellular response to forskolin / positive regulation of glycolytic process / regulation of mitotic spindle organization / dendritic shaft / glycolytic process / Regulation of insulin secretion / positive regulation of cholesterol biosynthetic process / negative regulation of insulin secretion / G protein-coupled receptor binding / caveola / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / response to peptide hormone / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / centriolar satellite / G-protein beta/gamma-subunit complex binding / memory / 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 / positive regulation of inflammatory response / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / 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 / Glucagon-type ligand receptors / Sensory perception of sweet, bitter, and umami (glutamate) taste / GDP binding / Adrenaline,noradrenaline inhibits insulin secretion / 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 / ADORA2B mediated anti-inflammatory cytokines production / cellular response to catecholamine stimulus / 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 / G alpha (12/13) signalling events / Inactivation, recovery and regulation of the phototransduction cascade / extracellular vesicle Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 2.62 Å | |||||||||
Authors | Xu Z / Shao ZH | |||||||||
| Funding support | China, 1 items
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Citation | Journal: Nature / Year: 2026Title: Psychedelics elicit their effects by 5-HT receptor-mediated G signalling. Authors: Zheng Xu / Hongshuang Wang / Jingjing Yu / Yue Deng / Xiaowen Tian / Rongjun Ni / Fan Xia / Lingyi Yang / Chanjuan Xu / Liting Zhang / Renxuan Luo / Peipei Chen / Xiaoyu Zhang / Yuxuan Liu / ...Authors: Zheng Xu / Hongshuang Wang / Jingjing Yu / Yue Deng / Xiaowen Tian / Rongjun Ni / Fan Xia / Lingyi Yang / Chanjuan Xu / Liting Zhang / Renxuan Luo / Peipei Chen / Xiaoyu Zhang / Yuxuan Liu / Jingyu Hou / Miyuan Zhang / Shasha Chen / Lantian Su / Hui Sun / Yixiao He / Dandan Chen / Xiaoting Chen / Zhuang Miao / Jie Xie / Xinlei Liu / Jie Zhao / Bowen Ke / Xiaohe Tian / Linan Zeng / Lingli Zhang / Xiangdong Tang / Shengyong Yang / Jianfeng Liu / Xiaohui Wang / Wei Yan / Zhenhua Shao / ![]() Abstract: Psychedelics are undergoing a renaissance as potential therapy for psychiatric disorders, with more than 200 clinical trials being studied across several countries. However, the precise mechanisms by ...Psychedelics are undergoing a renaissance as potential therapy for psychiatric disorders, with more than 200 clinical trials being studied across several countries. However, the precise mechanisms by which these drugs bring about benefits and the potential clinical risks are not yet fully understood. The serotonin 2A receptor (5-HTR) was reported to be a G-coupled receptor and the primary interoceptive target of psychedelics. Here we compared psychedelics and their non-hallucinogenic analogues (nHAs) using in vitro and in vivo approaches, finding that 5-HTR-mediated non-canonical G signalling is essential for hallucinogenic effect. We further presented five cryo-electron microscopy structures of 5-HTR-G/G in complex with psychedelics or nHAs. Structural analysis and pharmacological investigation revealed that a special contact between nHAs with 5-HTR mediated the signalling bias. Building on this insight, we identified a 2,5-dimethoxy-4-iodoamphetamine derivative, DOI-NBOMe, which exhibits potent and selective G-biased activity, and demonstrates promising therapeutic effects in mouse models without hallucinogenic effect. Our finding uncovers the functional mechanisms underlying the G signalling mediated by 5-HTR and provides valuable insights for designing psychedelic-based drugs with minimized risk from hallucinogenic effects. | |||||||||
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_63193.map.gz | 97.2 MB | EMDB map data format | |
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| Header (meta data) | emd-63193-v30.xml emd-63193.xml | 27.6 KB 27.6 KB | Display Display | EMDB header |
| Images | emd_63193.png | 114.4 KB | ||
| Filedesc metadata | emd-63193.cif.gz | 7.3 KB | ||
| Others | emd_63193_additional_1.map.gz emd_63193_half_map_1.map.gz emd_63193_half_map_2.map.gz | 97 MB 95.5 MB 95.5 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-63193 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-63193 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9ll8MC ![]() 9ll7C ![]() 9ll9C ![]() 9llaC ![]() 9llbC 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_63193.map.gz / Format: CCP4 / Size: 103 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: 0.75 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Additional map: #1
| File | emd_63193_additional_1.map | ||||||||||||
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-Half map: #2
| File | emd_63193_half_map_1.map | ||||||||||||
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-Half map: #1
| File | emd_63193_half_map_2.map | ||||||||||||
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Sample components
-Entire : 5-HT2AR-bound DOI in complex with Gi heterotrimer
| Entire | Name: 5-HT2AR-bound DOI in complex with Gi heterotrimer |
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| Components |
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-Supramolecule #1: 5-HT2AR-bound DOI in complex with Gi heterotrimer
| Supramolecule | Name: 5-HT2AR-bound DOI in complex with Gi heterotrimer / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#4 |
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| Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: 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: 1 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 37.41693 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL ...String: MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL WDIETGQQTT TFTGHTGDVM SLSLAPDTRL FVSGACDASA KLWDVREGMC RQTFTGHESD INAICFFPNG NA FATGSDD ATCRLFDLRA DQELMTYSHD NIICGITSVS FSKSGRLLLA GYDDFNCNVW DALKADRAGV LAGHDNRVSC LGV TDDGMA VATGSWDSFL KIWN UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-Macromolecule #2: 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: 2 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| 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 #3: Guanine nucleotide-binding protein G(i) subunit alpha-1
| Macromolecule | Name: Guanine nucleotide-binding protein G(i) subunit alpha-1 type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO EC number: Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 40.12266 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: TLSAEDKAAV ERSKMIDRNL REDGEKAARE VKLLLLGAGE SGKNTIVKQM KIIHEAGYSE EECKQYKAVV YSNTIQSIIA IIRAMGRLK IDFGDSARAD DARQLFVLAG AAEEGFMTAE LAGVIKRLWK DSGVQACFNR SREYQLNDSA AYYLNDLDRI A QPNYIPTQ ...String: TLSAEDKAAV ERSKMIDRNL REDGEKAARE VKLLLLGAGE SGKNTIVKQM KIIHEAGYSE EECKQYKAVV YSNTIQSIIA IIRAMGRLK IDFGDSARAD DARQLFVLAG AAEEGFMTAE LAGVIKRLWK DSGVQACFNR SREYQLNDSA AYYLNDLDRI A QPNYIPTQ QDVLRTRVKT TGIVETHFTF KDLHFKMFDV GAQRSERKKW IHCFEGVTAI IFCVALSDYD LVLAEDEEMN RM HASMKLF DSICNNKWFT DTSIILFLNK KDLFEEKIKK SPLTICYPEY AGSNTYEEAA AYIQCQFEDL NKRKDTKEIY THF TCSTDT KNVQFVFDAV TDVIIKNNLK DCGLF UniProtKB: Guanine nucleotide-binding protein G(i) subunit alpha-1 |
-Macromolecule #4: 5-hydroxytryptamine receptor 2A
| Macromolecule | Name: 5-hydroxytryptamine receptor 2A / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 52.648945 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: MDILCEENTS LSSTTNSLMQ LNDDTRLYSN DFNSGEANTS DAFNWTVDSE NRTNLSCEGC LSPSCLSLLH LQEKNWSALL TAVVIILTI AGNILVIMAV SLEKKLQNAT NYFLMSLAIA DMLLGFLVMP VSMLTILYGY RWPLPSKLCA VWIYLDVLFS T ASIMHLCA ...String: MDILCEENTS LSSTTNSLMQ LNDDTRLYSN DFNSGEANTS DAFNWTVDSE NRTNLSCEGC LSPSCLSLLH LQEKNWSALL TAVVIILTI AGNILVIMAV SLEKKLQNAT NYFLMSLAIA DMLLGFLVMP VSMLTILYGY RWPLPSKLCA VWIYLDVLFS T ASIMHLCA ISLDRYVAIQ NPIHHSRFNS RTKAFLKIIA VWTISVGISM PIPVFGLQDD SKVFKEGSCL LADDNFVLIG SF VSFFIPL TIMVITYFLT IKSLQKEATL CVSDLGTRAK LASFSFLPQS SLSSEKLFQR SIHREPGSYT GRRTMQSISN EQK ACKVLG IVFFLFVVMW CPFFITNIMA VICKESCNED VIGALLNVFV WIGYLSSAVN PLVYTLFNKT YRSAFSRYIQ CQYK ENKKP LQLILVNTIP ALAYKSSQLQ MGQKKNSKQD AKTTDNDCSM VALGKQHSEE ASKDNSDGVN EKVSCV UniProtKB: 5-hydroxytryptamine receptor 2A |
-Macromolecule #5: 3-[2-(dimethylamino)ethyl]-1~{H}-indol-4-ol
| Macromolecule | Name: 3-[2-(dimethylamino)ethyl]-1~{H}-indol-4-ol / type: ligand / ID: 5 / Number of copies: 1 / Formula: 91Q |
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| Molecular weight | Theoretical: 204.268 Da |
| Chemical component information | ![]() ChemComp-91Q: |
-Macromolecule #6: CHOLESTEROL
| Macromolecule | Name: CHOLESTEROL / type: ligand / ID: 6 / Number of copies: 1 / Formula: CLR |
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| Molecular weight | Theoretical: 386.654 Da |
| Chemical component information | ![]() ChemComp-CLR: |
-Macromolecule #7: water
| Macromolecule | Name: water / type: ligand / ID: 7 / Number of copies: 10 / Formula: HOH |
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| Molecular weight | Theoretical: 18.015 Da |
| Chemical component information | ![]() ChemComp-HOH: |
-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: 7.5 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | TFS KRIOS |
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| Image recording | Film or detector model: TFS FALCON 4i (4k x 4k) / Average electron dose: 50.0 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: 1.6 µm / Nominal defocus min: 0.9 µm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi




Keywords
Homo sapiens (human)
Authors
China, 1 items
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Z (Sec.)
Y (Row.)
X (Col.)
















































Processing
FIELD EMISSION GUN
