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Yorodumi- EMDB-5778: Structure of the capsaicin receptor, TRPV1, determined by single ... -
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-Basic information
Entry | Database: EMDB / ID: EMD-5778 | |||||||||
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Title | Structure of the capsaicin receptor, TRPV1, determined by single particle electron cryo-microscopy | |||||||||
Map data | Structure of the capsaicin receptor, TRPV1. This map is direct output from RELION without sharpening using a negative temperature factor. The map was normalized using the program MAPMAN. | |||||||||
Sample |
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Keywords | TRPV1 channel | |||||||||
Function / homology | Function and homology information temperature-gated ion channel activity / response to capsazepine / negative regulation of establishment of blood-brain barrier / sensory perception of mechanical stimulus / peptide secretion / urinary bladder smooth muscle contraction / detection of chemical stimulus involved in sensory perception of pain / smooth muscle contraction involved in micturition / TRP channels / cellular response to temperature stimulus ...temperature-gated ion channel activity / response to capsazepine / negative regulation of establishment of blood-brain barrier / sensory perception of mechanical stimulus / peptide secretion / urinary bladder smooth muscle contraction / detection of chemical stimulus involved in sensory perception of pain / smooth muscle contraction involved in micturition / TRP channels / cellular response to temperature stimulus / cellular response to acidic pH / fever generation / thermoception / detection of temperature stimulus involved in thermoception / negative regulation of systemic arterial blood pressure / glutamate secretion / response to pH / chloride channel regulator activity / dendritic spine membrane / monoatomic cation transmembrane transporter activity / excitatory extracellular ligand-gated monoatomic ion channel activity / negative regulation of heart rate / cellular response to ATP / temperature homeostasis / response to pain / cellular response to alkaloid / calcium ion import across plasma membrane / diet induced thermogenesis / cellular response to cytokine stimulus / detection of temperature stimulus involved in sensory perception of pain / intracellularly gated calcium channel activity / behavioral response to pain / negative regulation of mitochondrial membrane potential / ligand-gated monoatomic ion channel activity / extracellular ligand-gated monoatomic ion channel activity / monoatomic cation channel activity / GABA-ergic synapse / sensory perception of pain / phosphatidylinositol binding / cellular response to nerve growth factor stimulus / phosphoprotein binding / calcium ion transmembrane transport / microglial cell activation / calcium channel activity / lipid metabolic process / cellular response to growth factor stimulus / response to peptide hormone / calcium ion transport / positive regulation of nitric oxide biosynthetic process / transmembrane signaling receptor activity / cellular response to tumor necrosis factor / cellular response to heat / positive regulation of cytosolic calcium ion concentration / response to heat / monoatomic ion transmembrane transport / postsynaptic membrane / protein homotetramerization / 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 / identical protein binding / membrane / metal ion binding / plasma membrane Similarity search - Function | |||||||||
Biological species | Rattus norvegicus (Norway rat) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.275 Å | |||||||||
Authors | Liao M / Cao E / Julius D / Cheng Y | |||||||||
Citation | Journal: Nature / Year: 2013 Title: Structure of the TRPV1 ion channel determined by electron cryo-microscopy. Authors: Maofu Liao / Erhu Cao / David Julius / Yifan Cheng / Abstract: Transient receptor potential (TRP) channels are sensors for a wide range of cellular and environmental signals, but elucidating how these channels respond to physical and chemical stimuli has been ...Transient receptor potential (TRP) channels are sensors for a wide range of cellular and environmental signals, but elucidating how these channels respond to physical and chemical stimuli has been hampered by a lack of detailed structural information. Here we exploit advances in electron cryo-microscopy to determine the structure of a mammalian TRP channel, TRPV1, at 3.4 Å resolution, breaking the side-chain resolution barrier for membrane proteins without crystallization. Like voltage-gated channels, TRPV1 exhibits four-fold symmetry around a central ion pathway formed by transmembrane segments 5-6 (S5-S6) and the intervening pore loop, which is flanked by S1-S4 voltage-sensor-like domains. TRPV1 has a wide extracellular 'mouth' with a short selectivity filter. The conserved 'TRP domain' interacts with the S4-S5 linker, consistent with its contribution to allosteric modulation. Subunit organization is facilitated by interactions among cytoplasmic domains, including amino-terminal ankyrin repeats. These observations provide a structural blueprint for understanding unique aspects of TRP channel function. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_5778.map.gz | 46.1 MB | EMDB map data format | |
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Header (meta data) | emd-5778-v30.xml emd-5778.xml | 10.5 KB 10.5 KB | Display Display | EMDB header |
Images | emd_5778_1.jpg | 141.1 KB | ||
Others | emd_5778_additional_1.map.gz emd_5778_additional_2.map.gz emd_5778_additional_3.map.gz emd_5778_half_map_1.map.gz emd_5778_half_map_2.map.gz | 45.8 MB 5.7 MB 60.2 MB 45.8 MB 45.9 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-5778 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-5778 | HTTPS FTP |
-Validation report
Summary document | emd_5778_validation.pdf.gz | 352.8 KB | Display | EMDB validaton report |
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Full document | emd_5778_full_validation.pdf.gz | 352.3 KB | Display | |
Data in XML | emd_5778_validation.xml.gz | 6.3 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-5778 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-5778 | HTTPS FTP |
-Related structure data
Related structure data | 3j5pMC 3j9jM M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | |
EM raw data | EMPIAR-10005 (Title: TRPV1 dataset taken on a K2 direct electron detector / Data size: 6.3 TB / Data #1: TRPV1 picked particles [tilt series] Data #2: TRPV1 raw multi-frame micrographs [micrographs - multiframe] Data #3: TRPV1 summed frame micrographs [micrographs - single frame]) |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_5778.map.gz / Format: CCP4 / Size: 62.5 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Structure of the capsaicin receptor, TRPV1. This map is direct output from RELION without sharpening using a negative temperature factor. The map was normalized using the program MAPMAN. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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
-Supplemental map: emd 5778 additional 1.map
File | emd_5778_additional_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Supplemental map: emd 5778 additional 2.map
File | emd_5778_additional_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Supplemental map: emd 5778 additional 3.map
File | emd_5778_additional_3.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Supplemental map: emd 5778 half map 1.map
File | emd_5778_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Supplemental map: emd 5778 half map 2.map
File | emd_5778_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Rat TRPV1
Entire | Name: Rat TRPV1 |
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Components |
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-Supramolecule #1000: Rat TRPV1
Supramolecule | Name: Rat TRPV1 / type: sample / ID: 1000 / Details: The sample was monodisperse. / Oligomeric state: tetramer / Number unique components: 1 |
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Molecular weight | Experimental: 300 KDa / Theoretical: 300 KDa |
-Macromolecule #1: TRPV1
Macromolecule | Name: TRPV1 / type: protein_or_peptide / ID: 1 Details: Functional minimal construct containing residues 110-603 and 627-764. Number of copies: 1 / Oligomeric state: Tetramer / Recombinant expression: Yes |
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Source (natural) | Organism: Rattus norvegicus (Norway rat) / synonym: Rat / Location in cell: Plasma membrane |
Molecular weight | Experimental: 300 KDa / Theoretical: 300 KDa |
Recombinant expression | Organism: Homo sapiens (human) / Recombinant cell: HEK293S GnTI / Recombinant plasmid: pFastBac1 |
Sequence | UniProtKB: Transient receptor potential cation channel subfamily V member 1 |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 0.3 mg/mL |
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Buffer | pH: 7.4 / Details: 150 mM NaCl, 20 mM HEPES, 2 mM TCEP |
Grid | Details: 400 mesh Quantifoil grid |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 90 % / Chamber temperature: 120 K / Instrument: FEI VITROBOT MARK III / Method: Blot for 6 sec |
-Electron microscopy
Microscope | FEI POLARA 300 |
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Details | Gatan K2 Summit in super-resolution counting mode. Motion correction as described in Li et al. (2013) Nature Methods. |
Date | Jan 1, 2013 |
Image recording | Category: CCD / Film or detector model: GATAN K2 (4k x 4k) / Number real images: 946 / Average electron dose: 21 e/Å2 Details: Every image is the average of 30 frames recorded using the K2 Summit. The final reconstruction was calculated from images averaged from frames #3-#16. |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Calibrated magnification: 31000 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.0 mm / Nominal defocus max: 3.0 µm / Nominal defocus min: 1.5 µm / Nominal magnification: 31000 |
Sample stage | Specimen holder: Cooled to Liquid Nitrogen temperature / Specimen holder model: OTHER |
Experimental equipment | Model: Tecnai Polara / Image courtesy: FEI Company |
-Image processing
Details | 3D classification, refinement, and reconstruction were performed using RELION. |
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CTF correction | Details: Each particle |
Final reconstruction | Algorithm: OTHER / Resolution.type: BY AUTHOR / Resolution: 3.275 Å / Resolution method: OTHER / Software - Name: RELION / Number images used: 35645 |