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Yorodumi- PDB-8uhb: Cryo-EM Structure of the Ro5256390-bound hTA1-Gs heterotrimer sig... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 8uhb | |||||||||||||||
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| Title | Cryo-EM Structure of the Ro5256390-bound hTA1-Gs heterotrimer signaling complex | |||||||||||||||
Components |
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Keywords | MEMBRANE PROTEIN / GPCR / Signaling Complex / Trace Amine-associated Receptor | |||||||||||||||
| Function / homology | Function and homology informationCOPI-coated Golgi to ER transport vesicle / regulation of parathyroid hormone secretion / post-embryonic body morphogenesis / Amine ligand-binding receptors / adenylate cyclase-activating serotonin receptor signaling pathway / response to parathyroid hormone / trace-amine receptor activity / sensory perception of chemical stimulus / endochondral ossification / positive regulation of sodium ion transport ...COPI-coated Golgi to ER transport vesicle / regulation of parathyroid hormone secretion / post-embryonic body morphogenesis / Amine ligand-binding receptors / adenylate cyclase-activating serotonin receptor signaling pathway / response to parathyroid hormone / trace-amine receptor activity / sensory perception of chemical stimulus / endochondral ossification / positive regulation of sodium ion transport / tissue homeostasis / energy reserve metabolic process / mu-type opioid receptor binding / genomic imprinting / corticotropin-releasing hormone receptor 1 binding / embryonic cranial skeleton morphogenesis / positive regulation of osteoclast differentiation / positive regulation of mini excitatory postsynaptic potential / beta2-adrenergic receptor activity / negative regulation of smooth muscle contraction / cartilage development / AMPA selective glutamate receptor signaling pathway / positive regulation of autophagosome maturation / norepinephrine-epinephrine-mediated vasodilation involved in regulation of systemic arterial blood pressure / heat generation / norepinephrine binding / embryonic hindlimb morphogenesis / Adrenoceptors / beta-2 adrenergic receptor binding / positive regulation of lipophagy / negative regulation of multicellular organism growth / negative regulation of G protein-coupled receptor signaling pathway / skin development / endosome to lysosome transport / response to psychosocial stress / adrenergic receptor signaling pathway / diet induced thermogenesis / alkylglycerophosphoethanolamine phosphodiesterase activity / positive regulation of cAMP/PKA signal transduction / adenylate cyclase binding / smooth muscle contraction / G-protein alpha-subunit binding / developmental growth / hair follicle placode formation / regulation of signal transduction / bone resorption / D1 dopamine receptor binding / positive regulation of bone mineralization / potassium channel regulator activity / alpha-tubulin binding / positive regulation of osteoblast differentiation / neuronal dense core vesicle / brown fat cell differentiation / intercellular bridge / regulation of sodium ion transport / negative regulation of blood pressure / adenylate cyclase-activating adrenergic receptor signaling pathway / response to prostaglandin E / ruffle / insulin-like growth factor receptor binding / adenylate cyclase regulator activity / ionotropic glutamate receptor binding / cellular response to glucagon stimulus / endomembrane system / receptor-mediated endocytosis / response to cold / adenylate cyclase activator activity / trans-Golgi network membrane / post-embryonic development / skeletal system development / clathrin-coated endocytic vesicle membrane / electron transport chain / G protein-coupled receptor activity / sarcolemma / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / bone development / positive regulation of insulin secretion / recycling endosome / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / platelet aggregation / G-protein beta/gamma-subunit complex binding / cognition / multicellular organism growth / 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 / adenylate cyclase-activating G protein-coupled receptor signaling pathway / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / cellular response to amyloid-beta / 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 Similarity search - Function | |||||||||||||||
| Biological species | Homo sapiens (human)![]() ![]() | |||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.35 Å | |||||||||||||||
Authors | Zilberg, G. / Warren, A.L. / Parpounas, A.K. / Wacker, D. | |||||||||||||||
| Funding support | United States, 4items
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Citation | Journal: Nat Commun / Year: 2024Title: Molecular basis of human trace amine-associated receptor 1 activation. Authors: Gregory Zilberg / Alexandra K Parpounas / Audrey L Warren / Shifan Yang / Daniel Wacker / ![]() Abstract: The human trace amine-associated receptor 1 (hTAAR1, hTA1) is a key regulator of monoaminergic neurotransmission and the actions of psychostimulants. Despite preclinical research demonstrating its ...The human trace amine-associated receptor 1 (hTAAR1, hTA1) is a key regulator of monoaminergic neurotransmission and the actions of psychostimulants. Despite preclinical research demonstrating its tractability as a drug target, its molecular mechanisms of activation remain unclear. Moreover, poorly understood pharmacological differences between rodent and human TA1 complicate the translation of findings from preclinical disease models into novel pharmacotherapies. To elucidate hTA1's mechanisms on the molecular scale and investigate the underpinnings of its divergent pharmacology from rodent orthologs, we herein report the structure of the human TA1 receptor in complex with a Gαs heterotrimer. Our structure reveals shared structural elements with other TAARs, as well as with its closest monoaminergic orthologue, the serotonin receptor 5-HT4R. We further find that a single mutation dramatically shifts the selectivity of hTA1 towards that of its rodent orthologues, and report on the effects of substituting residues to those found in serotonin and dopamine receptors. Strikingly, we also discover that the atypical antipsychotic medication and pan-monoaminergic antagonist asenapine potently and efficaciously activates hTA1. Together our studies provide detailed insight into hTA1 structure and function, contrast its molecular pharmacology with that of related receptors, and uncover off-target activities of monoaminergic drugs at hTA1. | |||||||||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8uhb.cif.gz | 364.5 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8uhb.ent.gz | 291.4 KB | Display | PDB format |
| PDBx/mmJSON format | 8uhb.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 8uhb_validation.pdf.gz | 1.1 MB | Display | wwPDB validaton report |
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| Full document | 8uhb_full_validation.pdf.gz | 1.1 MB | Display | |
| Data in XML | 8uhb_validation.xml.gz | 40.2 KB | Display | |
| Data in CIF | 8uhb_validation.cif.gz | 59.2 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/uh/8uhb ftp://data.pdbj.org/pub/pdb/validation_reports/uh/8uhb | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 42268MC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-Guanine nucleotide-binding protein ... , 3 types, 3 molecules BCG
| #2: Protein | Mass: 39418.086 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Cell line (production host): Sf9 / Production host: ![]() |
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| #3: Protein | Mass: 45803.598 Da / Num. of mol.: 1 Mutation: E189D, M191V, T193S, E194D, N271K, K274D, R280K, T284D, I285T, G226A, A366S Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
| #4: Protein | 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: ![]() |
-Protein / Antibody / Non-polymers , 3 types, 3 molecules AN

| #1: Protein | Mass: 60019.816 Da / Num. of mol.: 1 / Mutation: M(-129)W, R(-14)G, Q(-3)E, F112W Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: cybC, ADRB2, TAAR1 / Cell line (production host): Sf9 / Production host: ![]() References: UniProt: P0ABE7, UniProt: P07550, UniProt: Q96RJ0 |
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| #5: Antibody | Mass: 14714.320 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
| #6: Chemical | ChemComp-WV8 / ( |
-Details
| Has ligand of interest | Y |
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| Has protein modification | Y |
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: hTA1-Gs-Nb35 complex (Ro5256390) / Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT |
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| Molecular weight | Units: MEGADALTONS / Experimental value: NO |
| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 7.4 |
| Specimen | Conc.: 1.2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 |
| Vitrification | Instrument: LEICA EM GP / Cryogen name: ETHANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 1800 nm / Nominal defocus min: 500 nm |
| Image recording | Electron dose: 53.88 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
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| 3D reconstruction | Resolution: 3.35 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 626370 / Symmetry type: POINT | ||||||||||||||||||||||||
| Refine LS restraints |
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About Yorodumi



Homo sapiens (human)

United States, 4items
Citation
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FIELD EMISSION GUN