+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-36409 | |||||||||
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Title | ST1936-5HT6R complex | |||||||||
Map data | This is the cryo-EM density of ST1936-ht6 complex. | |||||||||
Sample |
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Keywords | GPCR / MEMBRANE PROTEIN | |||||||||
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 / ionotropic glutamate receptor binding / insulin-like growth factor receptor binding / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / bone development / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G-protein activation / adenylate cyclase-activating G protein-coupled receptor signaling pathway / 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 | single particle reconstruction / cryo EM / Resolution: 3.09 Å | |||||||||
Authors | Wen X / Sun J | |||||||||
Funding support | China, 1 items
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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
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_36409.map.gz | 27.3 MB | EMDB map data format | |
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Header (meta data) | emd-36409-v30.xml emd-36409.xml | 18.8 KB 18.8 KB | Display Display | EMDB header |
Images | emd_36409.png | 20 KB | ||
Others | emd_36409_half_map_1.map.gz emd_36409_half_map_2.map.gz | 23.4 MB 23.4 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-36409 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-36409 | HTTPS FTP |
-Validation report
Summary document | emd_36409_validation.pdf.gz | 687.8 KB | Display | EMDB validaton report |
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Full document | emd_36409_full_validation.pdf.gz | 687.4 KB | Display | |
Data in XML | emd_36409_validation.xml.gz | 10.4 KB | Display | |
Data in CIF | emd_36409_validation.cif.gz | 11.9 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-36409 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-36409 | HTTPS FTP |
-Related structure data
Related structure data | 8jlzMC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_36409.map.gz / Format: CCP4 / Size: 30.5 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||
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Annotation | This is the cryo-EM density of ST1936-ht6 complex. | ||||||||||||||||||||
Voxel size | X=Y=Z: 0.85 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: This is the half1 map.
File | emd_36409_half_map_1.map | ||||||||||||
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Annotation | This is the half1 map. | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: This is the half2 map.
File | emd_36409_half_map_2.map | ||||||||||||
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Annotation | This is the half2 map. | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
-Entire : st1936-HT6
Entire | Name: st1936-HT6 |
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Components |
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-Supramolecule #1: st1936-HT6
Supramolecule | Name: st1936-HT6 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5 |
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Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
Macromolecule | Name: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short 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: 45.683434 KDa |
Recombinant expression | Organism: Baculovirus expression vector pFastBac1-HM |
Sequence | String: MGCLGNSKTE DQRNEEKAQR EANKKIEKQL QKDKQVYRAT HRLLLLGAGE SGKNTIVKQM RILHVNGFNG EGGEEDPQAA RSNSDGEKA TKVQDIKNNL KEAIETIVAA MSNLVPPVEL ANPENQFRVD YILSVMNVPD FDFPPEFYEH AKALWEDEGV R ACYERSNE ...String: MGCLGNSKTE DQRNEEKAQR EANKKIEKQL QKDKQVYRAT HRLLLLGAGE SGKNTIVKQM RILHVNGFNG EGGEEDPQAA RSNSDGEKA TKVQDIKNNL KEAIETIVAA MSNLVPPVEL ANPENQFRVD YILSVMNVPD FDFPPEFYEH AKALWEDEGV R ACYERSNE YQLIDCAQYF LDKIDVIKQA DYVPSDQDLL RCRVLTSGIF ETKFQVDKVN FHMFDVGAQR DERRKWIQCF ND VTAIIFV VASSSYNMVI REDNQTNRLQ AALKLFDSIW NNKWLRDTSV ILFLNKQDLL AEKVLAGKSK IEDYFPEFAR YTT PEDATP EPGEDPRVTR AKYFIRDEFL RISTASGDGR HYCYPHFTCA VDTENIRRVF NDCRDIIQRM HLRQYELL |
-Macromolecule #2: 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: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 39.418086 KDa |
Recombinant expression | Organism: Baculovirus expression vector pFastBac1-HM |
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 |
-Macromolecule #3: 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: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 6.375332 KDa |
Recombinant expression | Organism: Baculovirus expression vector pFastBac1-HM |
Sequence | String: NTASIAQARK LVEQLKMEAN IDRIKVSKAA ADLMAYCEAH AKEDPLLTPV PASENPFR |
-Macromolecule #4: Nb35
Macromolecule | Name: Nb35 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Camelus bactrianus (Bactrian camel) |
Molecular weight | Theoretical: 13.885439 KDa |
Recombinant expression | Organism: Escherichia coli (E. coli) |
Sequence | String: QVQLQESGGG LVQPGGSLRL SCAASGFTFS NYKMNWVRQA PGKGLEWVSD ISQSGASISY TGSVKGRFTI SRDNAKNTLY LQMNSLKPE DTAVYYCARC PAPFTRDCFD VTSTTYAYRG QGTQVTVSS |
-Macromolecule #5: 5-hydroxytryptamine receptor 6
Macromolecule | Name: 5-hydroxytryptamine receptor 6 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 46.99209 KDa |
Recombinant expression | Organism: Baculovirus expression vector pFastBac1-HM |
Sequence | String: MVPEPGPTAN STPAWGAGPP SAPGGSGWVA AALCVVIALT AAANSLLIAL ICTQPALRNT SNFFLVSLFT SDLMVGLVVM PPAMLNALY GRWVLARGLC LLWTAFDVMC CSASILNLCL ISLDRYLLIL SPLRYKLRMT PLRALALVLG AWSLAALASF L PLLLGWHE ...String: MVPEPGPTAN STPAWGAGPP SAPGGSGWVA AALCVVIALT AAANSLLIAL ICTQPALRNT SNFFLVSLFT SDLMVGLVVM PPAMLNALY GRWVLARGLC LLWTAFDVMC CSASILNLCL ISLDRYLLIL SPLRYKLRMT PLRALALVLG AWSLAALASF L PLLLGWHE LGHARPPVPG QCRLLASLPF VLVASGLTFF LPSGAICFTY CRILLAARKQ AVQVASLTTG MASQASETLQ VP RTPRPGV ESADSRRLAT KHSRKALKAS LTLGILLGMF FVTWLPFFVA NIVQAVCDCI SPGLFDVLTW LGYCNSTMNP IIY PLFMRD FKRALGRFLP CPRCPRERQA SLASPSLRTS HSGPRPGLSL QQVLPLPLPP DSDSDSDAGS GGSSGLRLTA QLLL PGEAT QDPPLPTRAA AAVNFFNIDP AEPELRPHPL GIPTN |
-Macromolecule #6: 2-(5-chloranyl-2-methyl-1~{H}-indol-3-yl)-N,N-dimethyl-ethanamine
Macromolecule | Name: 2-(5-chloranyl-2-methyl-1~{H}-indol-3-yl)-N,N-dimethyl-ethanamine type: ligand / ID: 6 / Number of copies: 1 / Formula: UQL |
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Molecular weight | Theoretical: 236.74 Da |
Chemical component information | ChemComp-UQL: |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.4 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 60.0 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: 2.5 µm / Nominal defocus min: 1.0 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Startup model | Type of model: PDB ENTRY PDB model - PDB ID: |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.09 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 286776 |
Initial angle assignment | Type: ANGULAR RECONSTITUTION |
Final angle assignment | Type: ANGULAR RECONSTITUTION |