[English] 日本語

- PDB-8uhb: Cryo-EM Structure of the Ro5256390-bound hTA1-Gs heterotrimer sig... -
+
Open data
-
Basic information
Entry | Database: PDB / ID: 8uhb | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Title | Cryo-EM Structure of the Ro5256390-bound hTA1-Gs heterotrimer signaling complex | |||||||||||||||
![]() |
| |||||||||||||||
![]() | MEMBRANE PROTEIN / GPCR / Signaling Complex / Trace Amine-associated Receptor | |||||||||||||||
Function / homology | ![]() COPI-coated Golgi to ER transport vesicle / regulation of parathyroid hormone secretion / post-embryonic body morphogenesis / Amine ligand-binding receptors / response to parathyroid hormone / trace-amine receptor activity / genomic imprinting / sensory perception of chemical stimulus / positive regulation of sodium ion transport / endochondral ossification ...COPI-coated Golgi to ER transport vesicle / regulation of parathyroid hormone secretion / post-embryonic body morphogenesis / Amine ligand-binding receptors / response to parathyroid hormone / trace-amine receptor activity / genomic imprinting / sensory perception of chemical stimulus / positive regulation of sodium ion transport / endochondral ossification / tissue homeostasis / mu-type opioid receptor binding / energy reserve metabolic process / 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 / AMPA selective glutamate receptor signaling pathway / embryonic hindlimb morphogenesis / norepinephrine binding / norepinephrine-epinephrine-mediated vasodilation involved in regulation of systemic arterial blood pressure / positive regulation of autophagosome maturation / heat generation / cartilage development / Adrenoceptors / activation of transmembrane receptor protein tyrosine kinase activity / beta-2 adrenergic receptor binding / negative regulation of smooth muscle contraction / positive regulation of lipophagy / negative regulation of multicellular organism growth / negative regulation of G protein-coupled receptor signaling pathway / adrenergic receptor signaling pathway / skin development / response to psychosocial stress / endosome to lysosome transport / diet induced thermogenesis / neuronal dense core vesicle / positive regulation of cAMP/PKA signal transduction / alkylglycerophosphoethanolamine phosphodiesterase activity / adenylate cyclase binding / hair follicle placode formation / smooth muscle contraction / developmental growth / G-protein alpha-subunit binding / alpha-tubulin binding / D1 dopamine receptor binding / regulation of signal transduction / bone resorption / positive regulation of bone mineralization / potassium channel regulator activity / positive regulation of osteoblast differentiation / brown fat cell differentiation / regulation of sodium ion transport / adenylate cyclase-activating adrenergic receptor signaling pathway / response to prostaglandin E / negative regulation of blood pressure / ionotropic glutamate receptor binding / adenylate cyclase regulator activity / ruffle / insulin-like growth factor receptor binding / cellular response to glucagon stimulus / adenylate cyclase activator activity / endomembrane system / receptor-mediated endocytosis / response to cold / post-embryonic development / trans-Golgi network membrane / skeletal system development / clathrin-coated endocytic vesicle membrane / electron transport chain / G protein-coupled receptor activity / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / sarcolemma / bone development / multicellular organism growth / recycling endosome / positive regulation of insulin secretion / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / platelet aggregation / cognition / 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 / adenylate cyclase-activating G protein-coupled receptor signaling pathway / 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 Similarity search - Function | |||||||||||||||
Biological species | ![]() ![]() ![]() ![]() ![]() | |||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.35 Å | |||||||||||||||
![]() | Zilberg, G. / Warren, A.L. / Parpounas, A.K. / Wacker, D. | |||||||||||||||
Funding support | ![]()
| |||||||||||||||
![]() | ![]() Title: 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. | |||||||||||||||
History |
|
-
Structure visualization
Structure viewer | Molecule: ![]() ![]() |
---|
-
Downloads & links
-
Download
PDBx/mmCIF format | ![]() | 364.5 KB | Display | ![]() |
---|---|---|---|---|
PDB format | ![]() | 291.4 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.1 MB | Display | ![]() |
---|---|---|---|---|
Full document | ![]() | 1.1 MB | Display | |
Data in XML | ![]() | 40.2 KB | Display | |
Data in CIF | ![]() | 59.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 42268MC M: map data used to model this data C: citing same article ( |
---|---|
Similar structure data | Similarity search - Function & homology ![]() |
-
Links
-
Assembly
Deposited unit | ![]()
|
---|---|
1 |
|
-
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.) ![]() ![]() ![]() |
---|---|
#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.) ![]() ![]() ![]() |
-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.) ![]() ![]() ![]() References: UniProt: P0ABE7, UniProt: P07550, UniProt: Q96RJ0 |
---|---|
#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 |
---|---|
Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
---|---|
EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-
Sample preparation
Component | Name: hTA1-Gs-Nb35 complex (Ro5256390) / Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT |
---|---|
Molecular weight | Units: MEGADALTONS / Experimental value: NO |
Source (natural) | Organism: ![]() |
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 |
-
Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
---|---|
Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
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) |
-
Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
3D reconstruction | Resolution: 3.35 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 626370 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
|