+Open data
-Basic information
Entry | Database: PDB / ID: 8iw1 | ||||||
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Title | Cryo-EM structure of the PEA-bound mTAAR9-Golf complex | ||||||
Components |
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Keywords | MEMBRANE PROTEIN / PEA / mTAAR9 | ||||||
Function / homology | Function and homology information Adenylate cyclase activating pathway / Amine ligand-binding receptors / G alpha (s) signalling events / trace-amine receptor activity / T cell migration / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex / regulation of cAMP-mediated signaling / D2 dopamine receptor binding / G protein-coupled serotonin receptor binding ...Adenylate cyclase activating pathway / Amine ligand-binding receptors / G alpha (s) signalling events / trace-amine receptor activity / T cell migration / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex / regulation of cAMP-mediated signaling / D2 dopamine receptor binding / G protein-coupled serotonin receptor binding / regulation of mitotic spindle organization / cellular response to forskolin / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / Regulation of insulin secretion / G protein-coupled receptor binding / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / 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 / Glucagon signaling in metabolic regulation / response to peptide hormone / G beta:gamma signalling through CDC42 / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / 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 / GDP binding / cellular response to prostaglandin E stimulus / Inactivation, recovery and regulation of the phototransduction cascade / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / GTPase binding / retina development in camera-type eye / Ca2+ pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / cell cortex / midbody / fibroblast proliferation / G alpha (i) signalling events / G alpha (s) signalling events / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / G alpha (q) signalling events / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / G protein-coupled receptor signaling pathway / cell division / lysosomal membrane / GTPase activity / centrosome / synapse / protein-containing complex binding / nucleolus / GTP binding / magnesium ion binding / signal transduction / extracellular exosome / nucleoplasm / membrane / metal ion binding / plasma membrane / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | Homo sapiens (human) Mus musculus (house mouse) synthetic construct (others) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.4 Å | ||||||
Authors | Sun, J.P. / Li, Q. / Yang, F. / Xu, Y.F. / Guo, L.L. / Lian, S. / Zhang, M.H. / Rong, N.K. | ||||||
Funding support | China, 1items
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Citation | Journal: Nature / Year: 2023 Title: Structural basis of amine odorant perception by a mammal olfactory receptor. Authors: Lulu Guo / Jie Cheng / Shuo Lian / Qun Liu / Yan Lu / Yuan Zheng / Kongkai Zhu / Minghui Zhang / Yalei Kong / Chao Zhang / Naikang Rong / Yuming Zhuang / Guoxing Fang / Jingjing Jiang / ...Authors: Lulu Guo / Jie Cheng / Shuo Lian / Qun Liu / Yan Lu / Yuan Zheng / Kongkai Zhu / Minghui Zhang / Yalei Kong / Chao Zhang / Naikang Rong / Yuming Zhuang / Guoxing Fang / Jingjing Jiang / Tianyao Zhang / Xiang Han / Zili Liu / Ming Xia / Shangming Liu / Lei Zhang / Stephen D Liberles / Xiao Yu / Yunfei Xu / Fan Yang / Qian Li / Jin-Peng Sun / Abstract: Odorants are detected as smell in the nasal epithelium of mammals by two G-protein-coupled receptor families, the odorant receptors and the trace amine-associated receptors (TAARs). TAARs emerged ...Odorants are detected as smell in the nasal epithelium of mammals by two G-protein-coupled receptor families, the odorant receptors and the trace amine-associated receptors (TAARs). TAARs emerged following the divergence of jawed and jawless fish, and comprise a large monophyletic family of receptors that recognize volatile amine odorants to elicit both intraspecific and interspecific innate behaviours such as attraction and aversion. Here we report cryo-electron microscopy structures of mouse TAAR9 (mTAAR9) and mTAAR9-G or mTAAR9-G trimers in complex with β-phenylethylamine, N,N-dimethylcyclohexylamine or spermidine. The mTAAR9 structures contain a deep and tight ligand-binding pocket decorated with a conserved DWY motif, which is essential for amine odorant recognition. In the mTAAR9 structure, a unique disulfide bond connecting the N terminus to ECL2 is required for agonist-induced receptor activation. We identify key structural motifs of TAAR family members for detecting monoamines and polyamines and the shared sequence of different TAAR members that are responsible for recognition of the same odour chemical. We elucidate the molecular basis of mTAAR9 coupling to G and G by structural characterization and mutational analysis. Collectively, our results provide a structural basis for odorant detection, receptor activation and G coupling of an amine olfactory receptor. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8iw1.cif.gz | 207.2 KB | Display | PDBx/mmCIF format |
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PDB format | pdb8iw1.ent.gz | 156.4 KB | Display | PDB format |
PDBx/mmJSON format | 8iw1.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 8iw1_validation.pdf.gz | 389.2 KB | Display | wwPDB validaton report |
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Full document | 8iw1_full_validation.pdf.gz | 400.6 KB | Display | |
Data in XML | 8iw1_validation.xml.gz | 22.3 KB | Display | |
Data in CIF | 8iw1_validation.cif.gz | 34.7 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/iw/8iw1 ftp://data.pdbj.org/pub/pdb/validation_reports/iw/8iw1 | HTTPS FTP |
-Related structure data
Related structure data | 35761MC 8itfC 8iw4C 8iw7C 8iw9C 8iweC 8iwmC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
#1: Protein | Mass: 29528.566 Da / Num. of mol.: 1 / Mutation: G51D,E52N,A236D,S239D,L259D,I359A,V362I Source method: isolated from a genetically manipulated source Details: Author stated: We buide a chimera based on wide type Guanine nucleotide-binding protein G(olf) subunit alpha and deleted GaAH domain (V67-L190) according to the Articles (Nehme, Rony et al. ...Details: Author stated: We buide a chimera based on wide type Guanine nucleotide-binding protein G(olf) subunit alpha and deleted GaAH domain (V67-L190) according to the Articles (Nehme, Rony et al. "Mini-G proteins: Novel tools for studying GPCRs in their active conformation." PloS one vol. 12,4 e0175642. 20 Apr. 2017). Those residues (A236, S239, L259, I359, V362) are dominant negative mutant during G protein modification to increase stability and affinity. A modified Gaolf chimera (Chain A) was generated on the basis of the mini-Golf scaffold with its N terminus replaced by the N terminus of Golf (residue M1 to residue K27) with Gai1 (residue M1 to residue M18) to facilitate the binding of scFv16. Source: (gene. exp.) Homo sapiens (human) / Gene: GNAI1, GNAL / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P63096, UniProt: P38405 |
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#2: Protein | Mass: 41055.867 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: Author stated: residues (-9) - (-4) is His Tag, residues 341-355 is Linker, residues 356-366 is Small Bit. Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P62873 |
#3: Protein | Mass: 6504.446 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNG2 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P59768 |
#4: Protein | Mass: 38928.238 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Mus musculus (house mouse) / Gene: Taar9 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q5QD04 |
#5: Antibody | Mass: 30363.043 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) synthetic construct (others) / Production host: Spodoptera frugiperda (fall armyworm) |
Has ligand of interest | Y |
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 |
-Sample preparation
Component | Name: Cryo-EM structure of the PEA-bound mTAAR9-Golf complex Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
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Source (natural) | Organism: Mus musculus (house mouse) |
Source (recombinant) | Organism: Spodoptera frugiperda (fall armyworm) |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-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: DIFFRACTION / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm |
Image recording | Electron dose: 1.875 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
-Processing
EM software | Name: PHENIX / Version: 1.20.1_4487: / Category: model refinement | ||||||||||||||||||||||||
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CTF correction | Type: NONE | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 749097 / Symmetry type: POINT | ||||||||||||||||||||||||
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