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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-8118 | |||||||||||||||
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Title | Structure of TRPV1 determined in lipid nanodisc | |||||||||||||||
![]() | TRPV1 | |||||||||||||||
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![]() | TRP / ion channel / nanodisc / vanilloid / lipid / TRANSPORT PROTEIN | |||||||||||||||
Function / homology | ![]() response to capsazepine / negative regulation of establishment of blood-brain barrier / sensory perception of mechanical stimulus / peptide secretion / excitatory extracellular ligand-gated monoatomic ion channel activity / temperature-gated ion channel activity / cellular response to temperature stimulus / detection of chemical stimulus involved in sensory perception of pain / urinary bladder smooth muscle contraction / TRP channels ...response to capsazepine / negative regulation of establishment of blood-brain barrier / sensory perception of mechanical stimulus / peptide secretion / excitatory extracellular ligand-gated monoatomic ion channel activity / temperature-gated ion channel activity / cellular response to temperature stimulus / detection of chemical stimulus involved in sensory perception of pain / urinary bladder smooth muscle contraction / TRP channels / smooth muscle contraction involved in micturition / fever generation / thermoception / detection of temperature stimulus involved in thermoception / cellular response to acidic pH / response to pH / negative regulation of systemic arterial blood pressure / dendritic spine membrane / chloride channel regulator activity / glutamate secretion / monoatomic cation transmembrane transporter activity / negative regulation of heart rate / cellular response to ATP / ligand-gated monoatomic ion channel activity / response to pain / temperature homeostasis / cellular response to alkaloid / diet induced thermogenesis / cellular response to cytokine stimulus / intracellularly gated calcium channel activity / behavioral response to pain / detection of temperature stimulus involved in sensory perception of pain / negative regulation of mitochondrial membrane potential / calcium ion import across plasma membrane / monoatomic cation channel activity / extracellular ligand-gated monoatomic ion channel activity / sensory perception of pain / phosphatidylinositol binding / GABA-ergic synapse / phosphoprotein binding / microglial cell activation / cellular response to nerve growth factor stimulus / cellular response to growth factor stimulus / calcium ion transmembrane transport / calcium channel activity / lipid metabolic process / response to peptide hormone / calcium ion transport / positive regulation of nitric oxide biosynthetic process / transmembrane signaling receptor activity / sensory perception of taste / cellular response to tumor necrosis factor / cellular response to heat / response to heat / positive regulation of cytosolic calcium ion concentration / monoatomic ion transmembrane transport / protein homotetramerization / postsynaptic membrane / calmodulin binding / neuron projection / positive regulation of apoptotic process / external side of plasma membrane / neuronal cell body / dendrite / negative regulation of transcription by RNA polymerase II / ATP binding / metal ion binding / identical protein binding / membrane / plasma membrane Similarity search - Function | |||||||||||||||
Biological species | ![]() ![]() | |||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.28 Å | |||||||||||||||
![]() | Gao Y / Cao E | |||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: TRPV1 structures in nanodiscs reveal mechanisms of ligand and lipid action. Authors: Yuan Gao / Erhu Cao / David Julius / Yifan Cheng / ![]() Abstract: When integral membrane proteins are visualized in detergents or other artificial systems, an important layer of information is lost regarding lipid interactions and their effects on protein structure. ...When integral membrane proteins are visualized in detergents or other artificial systems, an important layer of information is lost regarding lipid interactions and their effects on protein structure. This is especially relevant to proteins for which lipids have both structural and regulatory roles. Here we demonstrate the power of combining electron cryo-microscopy with lipid nanodisc technology to ascertain the structure of the rat TRPV1 ion channel in a native bilayer environment. Using this approach, we determined the locations of annular and regulatory lipids and showed that specific phospholipid interactions enhance binding of a spider toxin to TRPV1 through formation of a tripartite complex. Furthermore, phosphatidylinositol lipids occupy the binding site for capsaicin and other vanilloid ligands, suggesting a mechanism whereby chemical or thermal stimuli elicit channel activation by promoting the release of bioactive lipids from a critical allosteric regulatory site. | |||||||||||||||
History |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 24.6 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 23.2 KB 23.2 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 6.8 KB | Display | ![]() |
Images | ![]() | 210.3 KB | ||
Filedesc metadata | ![]() | 7.2 KB | ||
Others | ![]() ![]() | 17.9 MB 17.9 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 5irzMC ![]() 8117C ![]() 8119C ![]() 8120C ![]() 5irxC ![]() 5is0C C: citing same article ( M: atomic model generated by this map |
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Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
File | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | TRPV1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.2156 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Half map: TRPV1, half map 1
File | emd_8118_half_map_1.map | ||||||||||||
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Annotation | TRPV1, half map 1 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: TRPV1, half map 2
File | emd_8118_half_map_2.map | ||||||||||||
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Annotation | TRPV1, half map 2 | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
-Entire : TRPV1 ion channel in unliganded state
Entire | Name: TRPV1 ion channel in unliganded state |
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Components |
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-Supramolecule #1: TRPV1 ion channel in unliganded state
Supramolecule | Name: TRPV1 ion channel in unliganded state / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #1: Transient receptor potential cation channel subfamily V member 1
Macromolecule | Name: Transient receptor potential cation channel subfamily V member 1 type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 72.959297 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: AMGSRLYDRR SIFDAVAQSN CQELESLLPF LQRSKKRLTD SEFKDPETGK TCLLKAMLNL HNGQNDTIAL LLDVARKTDS LKQFVNASY TDSYYKGQTA LHIAIERRNM TLVTLLVENG ADVQAAANGD FFKKTKGRPG FYFGELPLSL AACTNQLAIV K FLLQNSWQ ...String: AMGSRLYDRR SIFDAVAQSN CQELESLLPF LQRSKKRLTD SEFKDPETGK TCLLKAMLNL HNGQNDTIAL LLDVARKTDS LKQFVNASY TDSYYKGQTA LHIAIERRNM TLVTLLVENG ADVQAAANGD FFKKTKGRPG FYFGELPLSL AACTNQLAIV K FLLQNSWQ PADISARDSV GNTVLHALVE VADNTVDNTK FVTSMYNEIL ILGAKLHPTL KLEEITNRKG LTPLALAASS GK IGVLAYI LQREIHEPEC RHLSRKFTEW AYGPVHSSLY DLSCIDTCEK NSVLEVIAYS SSETPNRHDM LLVEPLNRLL QDK WDRFVK RIFYFNFFVY CLYMIIFTAA AYYRPVEGLP PYKLKNTVGD YFRVTGEILS VSGGVYFFFR GIQYFLQRRP SLKS LFVDS YSEILFFVQS LFMLVSVVLY FSQRKEYVAS MVFSLAMGWT NMLYYTRGFQ QMGIYAVMIE KMILRDLCRF MFVYL VFLF GFSTAVVTLI EDGKYNSLYS TCLELFKFTI GMGDLEFTEN YDFKAVFIIL LLAYVILTYI LLLNMLIALM GETVNK IAQ ESKNIWKLQR AITILDTEKS FLKCMRKAFR SGKLLQVGFT PDGKDDYRWC FRVDEVNWTT WNTNVGIINE DPG UniProtKB: Transient receptor potential cation channel subfamily V member 1, Transient receptor potential cation channel subfamily V member 1 |
-Macromolecule #2: (4R,7S)-4-hydroxy-N,N,N-trimethyl-4,9-dioxo-7-[(pentanoyloxy)meth...
Macromolecule | Name: (4R,7S)-4-hydroxy-N,N,N-trimethyl-4,9-dioxo-7-[(pentanoyloxy)methyl]-3,5,8-trioxa-4lambda~5~-phosphatetradecan-1-aminium type: ligand / ID: 2 / Number of copies: 4 / Formula: 6O8 |
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Molecular weight | Theoretical: 440.489 Da |
Chemical component information | ![]() ChemComp-6O8: |
-Macromolecule #3: (2S)-1-{[(R)-hydroxy{[(1R,2R,3S,4S,5S,6S)-2,3,4,5,6-pentahydroxyc...
Macromolecule | Name: (2S)-1-{[(R)-hydroxy{[(1R,2R,3S,4S,5S,6S)-2,3,4,5,6-pentahydroxycyclohexyl]oxy}phosphoryl]oxy}-3-(pentanoyloxy)propan-2-yl decanoate type: ligand / ID: 3 / Number of copies: 4 / Formula: 6ES |
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Molecular weight | Theoretical: 572.58 Da |
Chemical component information | ![]() ChemComp-6ES: |
-Macromolecule #4: (2S)-3-{[(S)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-(hexanoylo...
Macromolecule | Name: (2S)-3-{[(S)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-(hexanoyloxy)propyl hexanoate type: ligand / ID: 4 / Number of copies: 16 / Formula: 6OE |
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Molecular weight | Theoretical: 411.428 Da |
Chemical component information | ![]() ChemComp-6OE: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 0.5 mg/mL | ||||||||||||
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Buffer | pH: 7.4 Component:
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Grid | Model: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 400 / Support film - Material: CARBON / Support film - topology: HOLEY / Support film - Film thickness: 12 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 10 sec. / Pretreatment - Atmosphere: AIR / Pretreatment - Pressure: 290.0 kPa | ||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 278 K / Instrument: FEI VITROBOT MARK III Details: Blot for 6 seconds before plunging into liquid ethane (FEI VITROBOT MARK III).. | ||||||||||||
Details | This sample was monodisperse. |
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Electron microscopy
Microscope | FEI POLARA 300 |
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Temperature | Min: 70.0 K / Max: 70.0 K |
Details | Grid screening was performed manually. |
Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Digitization - Dimensions - Width: 3838 pixel / Digitization - Dimensions - Height: 3710 pixel / Digitization - Frames/image: 1-30 / Number grids imaged: 1 / Number real images: 1000 / Average exposure time: 6.0 sec. / Average electron dose: 41.0 e/Å2 Details: Images were collected in movie mode at 5 frames per second for 6 seconds. |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 30.0 µm / Calibrated defocus max: 2.2 µm / Calibrated defocus min: 0.7000000000000001 µm / Calibrated magnification: 41132 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.0 mm / Nominal defocus max: 2.2 µm / Nominal defocus min: 0.7000000000000001 µm / Nominal magnification: 31000 |
Sample stage | Specimen holder model: OTHER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Tecnai Polara / Image courtesy: FEI Company |