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- EMDB-37351: Cryo-EM structure of SEP-363856 bounded serotonin 1A (5-HT1A) rec... -
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Basic information
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Title | Cryo-EM structure of SEP-363856 bounded serotonin 1A (5-HT1A) receptor-Gi protein complex | |||||||||
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![]() | 5-HT1A / SEP363856 / GPCR / MEMBRANE PROTEIN | |||||||||
Function / homology | ![]() regulation of serotonin secretion / Gi/o-coupled serotonin receptor activity / regulation of hormone secretion / regulation of behavior / receptor-receptor interaction / Serotonin receptors / serotonin receptor activity / G protein-coupled serotonin receptor activity / regulation of dopamine metabolic process / serotonin receptor signaling pathway ...regulation of serotonin secretion / Gi/o-coupled serotonin receptor activity / regulation of hormone secretion / regulation of behavior / receptor-receptor interaction / Serotonin receptors / serotonin receptor activity / G protein-coupled serotonin receptor activity / regulation of dopamine metabolic process / serotonin receptor signaling pathway / serotonin metabolic process / neurotransmitter receptor activity / serotonin binding / gamma-aminobutyric acid signaling pathway / exploration behavior / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / behavioral fear response / regulation of vasoconstriction / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / T cell migration / Adenylate cyclase inhibitory pathway / D2 dopamine receptor binding / response to prostaglandin E / G protein-coupled serotonin receptor binding / adenylate cyclase regulator activity / adenylate cyclase-inhibiting serotonin receptor signaling pathway / cellular response to forskolin / regulation of mitotic spindle organization / Regulation of insulin secretion / positive regulation of cholesterol biosynthetic process / negative regulation of insulin secretion / G protein-coupled receptor binding / electron transport chain / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / response to peptide hormone / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / centriolar satellite / 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 / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / 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 / GDP binding / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / ADP signalling through P2Y purinoceptor 1 / ADORA2B mediated anti-inflammatory cytokines production / 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 / 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) / retina development in camera-type eye / G protein activity / GTPase binding / Ca2+ pathway / midbody / fibroblast proliferation / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / cell cortex / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / chemical synaptic transmission / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / G alpha (q) signalling events / Ras protein signal transduction / periplasmic space / Extra-nuclear estrogen signaling / electron transfer activity / cell population proliferation / ciliary basal body / G protein-coupled receptor signaling pathway / iron ion binding Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.0 Å | |||||||||
![]() | Liu H / Zheng Y / Wang Y / He X / Xu P / Huang S / Yuan Q / Zhang X / Wang S / Xu HE / Xu F | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Recognition of methamphetamine and other amines by trace amine receptor TAAR1. Authors: Heng Liu / You Zheng / Yue Wang / Yumeng Wang / Xinheng He / Peiyu Xu / Sijie Huang / Qingning Yuan / Xinyue Zhang / Ling Wang / Kexin Jiang / Hong Chen / Zhen Li / Wenbin Liu / Sheng Wang / ...Authors: Heng Liu / You Zheng / Yue Wang / Yumeng Wang / Xinheng He / Peiyu Xu / Sijie Huang / Qingning Yuan / Xinyue Zhang / Ling Wang / Kexin Jiang / Hong Chen / Zhen Li / Wenbin Liu / Sheng Wang / H Eric Xu / Fei Xu / ![]() Abstract: Trace amine-associated receptor 1 (TAAR1), the founding member of a nine-member family of trace amine receptors, is responsible for recognizing a range of biogenic amines in the brain, including the ...Trace amine-associated receptor 1 (TAAR1), the founding member of a nine-member family of trace amine receptors, is responsible for recognizing a range of biogenic amines in the brain, including the endogenous β-phenylethylamine (β-PEA) as well as methamphetamine, an abused substance that has posed a severe threat to human health and society. Given its unique physiological role in the brain, TAAR1 is also an emerging target for a range of neurological disorders including schizophrenia, depression and drug addiction. Here we report structures of human TAAR1-G-protein complexes bound to methamphetamine and β-PEA as well as complexes bound to RO5256390, a TAAR1-selective agonist, and SEP-363856, a clinical-stage dual agonist for TAAR1 and serotonin receptor 5-HTR (refs. ). Together with systematic mutagenesis and functional studies, the structures reveal the molecular basis of methamphetamine recognition and underlying mechanisms of ligand selectivity and polypharmacology between TAAR1 and other monoamine receptors. We identify a lid-like extracellular loop 2 helix/loop structure and a hydrogen-bonding network in the ligand-binding pockets, which may contribute to the ligand recognition in TAAR1. These findings shed light on the ligand recognition mode and activation mechanism for TAAR1 and should guide the development of next-generation therapeutics for drug addiction and various neurological disorders. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 59.8 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 20.8 KB 20.8 KB | Display Display | ![]() |
Images | ![]() | 36.2 KB | ||
Masks | ![]() | 64 MB | ![]() | |
Filedesc metadata | ![]() | 6.9 KB | ||
Others | ![]() ![]() | 59.3 MB 59.3 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 988.7 KB | Display | ![]() |
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Full document | ![]() | 988.2 KB | Display | |
Data in XML | ![]() | 12.4 KB | Display | |
Data in CIF | ![]() | 14.5 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8w8bMC ![]() 8w87C ![]() 8w88C ![]() 8w89C ![]() 8w8aC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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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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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.824 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
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-Half map: #2
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Density Histograms |
-Half map: #1
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Density Histograms |
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Sample components
-Entire : Cryo-EM structure of SEP-363856 bounded serotonin 1A (5-HT1A) rec...
Entire | Name: Cryo-EM structure of SEP-363856 bounded serotonin 1A (5-HT1A) receptor-Gi protein complex |
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Components |
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-Supramolecule #1: Cryo-EM structure of SEP-363856 bounded serotonin 1A (5-HT1A) rec...
Supramolecule | Name: Cryo-EM structure of SEP-363856 bounded serotonin 1A (5-HT1A) receptor-Gi protein complex type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5 |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: 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: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 40.414047 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKNTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...String: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKNTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI PTQQDVLRTR VKTTGIVETH FTFKDLHFKM FDVGAQRSER KKWIHCFEGV TAIIFCVALS DYDLVLAEDE EM NRMHASM KLFDSICNNK WFTDTSIILF LNKKDLFEEK IKKSPLTICY PEYAGSNTYE EAAAYIQCQF EDLNKRKDTK EIY THFTCS TDTKNVQFVF DAVTDVIIKN NLKDCGLF UniProtKB: Guanine nucleotide-binding protein G(i) subunit alpha-1 |
-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: ![]() |
Molecular weight | Theoretical: 37.915496 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MGSLLQSELD QLRQEAEQLK NQIRDARKAC ADATLSQITN NIDPVGRIQM RTRRTLRGHL AKIYAMHWGT DSRLLVSASQ DGKLIIWDS YTTNKVHAIP LRSSWVMTCA YAPSGNYVAC GGLDNICSIY NLKTREGNVR VSRELAGHTG YLSCCRFLDD N QIVTSSGD ...String: MGSLLQSELD QLRQEAEQLK NQIRDARKAC ADATLSQITN NIDPVGRIQM RTRRTLRGHL AKIYAMHWGT DSRLLVSASQ DGKLIIWDS YTTNKVHAIP LRSSWVMTCA YAPSGNYVAC GGLDNICSIY NLKTREGNVR VSRELAGHTG YLSCCRFLDD N QIVTSSGD TTCALWDIET GQQTTTFTGH TGDVMSLSLA PDTRLFVSGA CDASAKLWDV REGMCRQTFT GHESDINAIC FF PNGNAFA TGSDDATCRL FDLRADQELM TYSHDNIICG ITSVSFSKSG RLLLAGYDDF NCNVWDALKA DRAGVLAGHD NRV SCLGVT DDGMAVATGS WDSFLKIWN UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-Macromolecule #3: Antibody fragment scFv16
Macromolecule | Name: Antibody fragment scFv16 / type: protein_or_peptide / ID: 3 / 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 #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: Soluble cytochrome b562,5-hydroxytryptamine receptor 1A
Macromolecule | Name: Soluble cytochrome b562,5-hydroxytryptamine receptor 1A type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 60.408512 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: DYKDDDDAKL QTMHHHHHHH HHHHHHHHAD LEDNWETLND NLKVIEKADN AAQVKDALTK MRAAALDAQK ATPPKLEDKS PDSPEMKDF RHGFDILVGQ IDDALKLANE GKVKEAQAAA EQLKTTRNAY IQKYLASENL YFQGGTTTGI SDVTVSYQVI T SLLLGTLI ...String: DYKDDDDAKL QTMHHHHHHH HHHHHHHHAD LEDNWETLND NLKVIEKADN AAQVKDALTK MRAAALDAQK ATPPKLEDKS PDSPEMKDF RHGFDILVGQ IDDALKLANE GKVKEAQAAA EQLKTTRNAY IQKYLASENL YFQGGTTTGI SDVTVSYQVI T SLLLGTLI FCAVLGNACV VAAIALERSL QNVANYLIGS LAVTDLMVSV LVLPMAALYQ VLNKWTLGQV TCDLFIALDV LC CTSSIWH LCAIALDRYW AITDPIDYVN KRTPRRAAAL ISLTWLIGFL ISIPPMLGWR TPEDRSDPDA CTISKDHGYT IYS TFGAFY IPLLLMLVLY GRIFRAARFR IRKTVKKVEK TGADTRHGAS PAPQPKKSVN GESGSRNWRL GVESKAGGAL CANG AVRQG DDGAALEVIE VHRVGNSKEH LPLPSEAGPT PCAPASFERK NERNAEAKRK MALARERKTV KTLGIIMGTF ILCWL PFFI VALVLPFCES SCHMPTLLGA IINWLGYSNS LLNPVIYAYF NKDFQNAFKK IIKCKFCRQ UniProtKB: Soluble cytochrome b562, 5-hydroxytryptamine receptor 1A |
-Macromolecule #6: CHOLESTEROL
Macromolecule | Name: CHOLESTEROL / type: ligand / ID: 6 / Number of copies: 5 / Formula: CLR |
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Molecular weight | Theoretical: 386.654 Da |
Chemical component information | ![]() ChemComp-CLR: |
-Macromolecule #7: PALMITIC ACID
Macromolecule | Name: PALMITIC ACID / type: ligand / ID: 7 / Number of copies: 1 / Formula: PLM |
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Molecular weight | Theoretical: 256.424 Da |
Chemical component information | ![]() ChemComp-PLM: |
-Macromolecule #8: 1-[(7~{S})-5,7-dihydro-4~{H}-thieno[2,3-c]pyran-7-yl]-~{N}-methyl...
Macromolecule | Name: 1-[(7~{S})-5,7-dihydro-4~{H}-thieno[2,3-c]pyran-7-yl]-~{N}-methyl-methanamine type: ligand / ID: 8 / Number of copies: 1 / Formula: UJL |
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Molecular weight | Theoretical: 183.271 Da |
Chemical component information | ![]() ChemComp-UJL: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.4 |
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Vitrification | Cryogen name: ETHANE |
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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) / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: DARK FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: NONE |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.0 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 396934 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |