+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-22009 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Title | Structure of human TRPA1 in complex with agonist GNE551 | |||||||||
Map data | Density-modified map | |||||||||
Sample |
| |||||||||
Keywords | TRPA1 / channel / agonist / MEMBRANE PROTEIN / MEMBRANE PROTEIN-Agonist complex | |||||||||
Function / homology | Function and homology information temperature-gated cation channel activity / stereocilium bundle / detection of chemical stimulus involved in sensory perception of pain / thermoception / TRP channels / channel activity / : / response to pain / intracellularly gated calcium channel activity / detection of mechanical stimulus involved in sensory perception of pain ...temperature-gated cation channel activity / stereocilium bundle / detection of chemical stimulus involved in sensory perception of pain / thermoception / TRP channels / channel activity / : / response to pain / intracellularly gated calcium channel activity / detection of mechanical stimulus involved in sensory perception of pain / monoatomic ion transport / sensory perception of pain / response to cold / : / calcium ion transmembrane transport / calcium channel activity / response to organic cyclic compound / intracellular calcium ion homeostasis / cellular response to hydrogen peroxide / protein homotetramerization / cell surface receptor signaling pathway / response to xenobiotic stimulus / identical protein binding / plasma membrane Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.0 Å | |||||||||
Authors | Rohou A / Rouge L / Chen H | |||||||||
Citation | Journal: Neuron / Year: 2021 Title: A Non-covalent Ligand Reveals Biased Agonism of the TRPA1 Ion Channel. Authors: Chang Liu / Rebecca Reese / Simon Vu / Lionel Rougé / Shannon D Shields / Satoko Kakiuchi-Kiyota / Huifen Chen / Kevin Johnson / Yu Patrick Shi / Tania Chernov-Rogan / Demi Maria Zabala ...Authors: Chang Liu / Rebecca Reese / Simon Vu / Lionel Rougé / Shannon D Shields / Satoko Kakiuchi-Kiyota / Huifen Chen / Kevin Johnson / Yu Patrick Shi / Tania Chernov-Rogan / Demi Maria Zabala Greiner / Pawan Bir Kohli / David Hackos / Bobby Brillantes / Christine Tam / Tianbo Li / Jianyong Wang / Brian Safina / Steve Magnuson / Matthew Volgraf / Jian Payandeh / Jie Zheng / Alexis Rohou / Jun Chen / Abstract: The TRPA1 ion channel is activated by electrophilic compounds through the covalent modification of intracellular cysteine residues. How non-covalent agonists activate the channel and whether covalent ...The TRPA1 ion channel is activated by electrophilic compounds through the covalent modification of intracellular cysteine residues. How non-covalent agonists activate the channel and whether covalent and non-covalent agonists elicit the same physiological responses are not understood. Here, we report the discovery of a non-covalent agonist, GNE551, and determine a cryo-EM structure of the TRPA1-GNE551 complex, revealing a distinct binding pocket and ligand-interaction mechanism. Unlike the covalent agonist allyl isothiocyanate, which elicits channel desensitization, tachyphylaxis, and transient pain, GNE551 activates TRPA1 into a distinct conducting state without desensitization and induces persistent pain. Furthermore, GNE551-evoked pain is relatively insensitive to antagonist treatment. Thus, we demonstrate the biased agonism of TRPA1, a finding that has important implications for the discovery of effective drugs tailored to different disease etiologies. | |||||||||
History |
|
-Structure visualization
Movie |
Movie viewer |
---|---|
Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_22009.map.gz | 5.1 MB | EMDB map data format | |
---|---|---|---|---|
Header (meta data) | emd-22009-v30.xml emd-22009.xml | 16.2 KB 16.2 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_22009_fsc.xml | 11.4 KB | Display | FSC data file |
Images | emd_22009.png | 155.3 KB | ||
Filedesc metadata | emd-22009.cif.gz | 6.7 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-22009 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-22009 | HTTPS FTP |
-Related structure data
Related structure data | 6x2jMC M: atomic model generated by this map C: citing same article (ref.) |
---|---|
Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
---|---|
Related items in Molecule of the Month |
-Map
File | Download / File: emd_22009.map.gz / Format: CCP4 / Size: 129.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Annotation | Density-modified map | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
|
-Supplemental data
-Sample components
-Entire : TRPA1 bound by agonist GNE551
Entire | Name: TRPA1 bound by agonist GNE551 |
---|---|
Components |
|
-Supramolecule #1: TRPA1 bound by agonist GNE551
Supramolecule | Name: TRPA1 bound by agonist GNE551 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 |
---|---|
Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: Transient receptor potential cation channel subfamily A member 1
Macromolecule | Name: Transient receptor potential cation channel subfamily A member 1 type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO |
---|---|
Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 72.622125 KDa |
Recombinant expression | Organism: Spodoptera frugiperda (fall armyworm) |
Sequence | String: SPLHFAASYG RINTCQRLLQ DISDTRLLNE GDLHGMTPLH LAAKNGHDKV VQLLLKKGAL FLSDHNGWTA LHHASMGGYT QTMKVILDT NLKCTDRLDE DGNTALHFAA REGHAKAVAL LLSHNADIVL NKQQASFLHL ALHNKRKEVV LTIIRSKRWD E CLKIFSHN ...String: SPLHFAASYG RINTCQRLLQ DISDTRLLNE GDLHGMTPLH LAAKNGHDKV VQLLLKKGAL FLSDHNGWTA LHHASMGGYT QTMKVILDT NLKCTDRLDE DGNTALHFAA REGHAKAVAL LLSHNADIVL NKQQASFLHL ALHNKRKEVV LTIIRSKRWD E CLKIFSHN SPGNKCPITE MIEYLPECMK VLLDFCMLHS TEDKSCRDYY IEYNFKYLQC PLEFTKKTPT QDVIYEPLTA LN AMVQNNR IELLNHPVCK EYLLMKWLAY GFRAHMMNLG SYCLGLIPMT ILVVNIKPGM AFNSTGIINE TSDHSEILDT TNS YLIKTC MILVFLSSIF GYCKEAGQIF QQKRNYFMDI SNVLEWIIYT TGIIFVLPLF VEIPAHLQWQ CGAIAVYFYW MNFL LYLQR FENCGIFIVM LEVILKTLLR STVVFIFLLL AFGLSFYILL NLQDPFSSPL LSIIQTFSMM LGDINYRESF LEPYL RNEL AHPVLSFAQL VSFTIFVPIV LMNLLIGLAV GDIADVQKHA SLKRIAMQVE LHTSLEKKLP LWFLRKVDQK STIVYP NKP RSGGMLFHIF CFLFCTGEIR QEIPNADKSL EMEILKQKYR LKDLTFLLEK QHELIKLIIQ KMEIISET UniProtKB: Transient receptor potential cation channel subfamily A member 1 |
-Macromolecule #2: 5-amino-1-[(4-bromo-2-fluorophenyl)methyl]-N-(2,5-dimethoxyphenyl...
Macromolecule | Name: 5-amino-1-[(4-bromo-2-fluorophenyl)methyl]-N-(2,5-dimethoxyphenyl)-1H-1,2,3-triazole-4-carboxamide type: ligand / ID: 2 / Number of copies: 4 / Formula: ULJ |
---|---|
Molecular weight | Theoretical: 450.262 Da |
Chemical component information | ChemComp-ULJ: |
-Experimental details
-Structure determination
Method | cryo EM |
---|---|
Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 0.33 mg/mL | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Buffer | pH: 8.2 Component:
| ||||||||||||
Grid | Model: Quantifoil R0.6/1 / Material: GOLD / Mesh: 300 / Support film - #0 - Film type ID: 1 / Support film - #0 - Material: CARBON / Support film - #0 - topology: HOLEY / Support film - #1 - Film type ID: 2 / Support film - #1 - Material: GOLD / Support film - #1 - topology: HOLEY / Support film - #1 - Film thickness: 25 / Pretreatment - Type: PLASMA CLEANING / Pretreatment - Time: 30 sec. / Pretreatment - Atmosphere: OTHER / Pretreatment - Pressure: 0.1 kPa / Details: Solarus plasma cleaner | ||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV Details: Triple blot. Put blot in vitroblot Apply 3.5ul to grid, wait 30sec, blot manually Apply 3.5ul to grid, wait 30sec, blot manually, apply final 3.5ul, final blot by vitrobot (3.5s). |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
---|---|
Specialist optics | Energy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV |
Image recording | Film or detector model: GATAN K2 QUANTUM (4k x 4k) / Detector mode: COUNTING / Digitization - Frames/image: 1-40 / Number grids imaged: 1 / Number real images: 11063 / Average exposure time: 1.6 sec. / Average electron dose: 41.8 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | C2 aperture diameter: 70.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal magnification: 165000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |