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- EMDB-7118: Open state structure of the full-length TRPV2 cation channel with... -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-7118 | |||||||||
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Title | Open state structure of the full-length TRPV2 cation channel with a resolved pore turret domain | |||||||||
![]() | WT rat TRPV2 ion channel in an open state and with a resolved pore turret domain. | |||||||||
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![]() | channel / TRP / cation / open / MEMBRANE PROTEIN | |||||||||
Function / homology | ![]() growth cone membrane / TRP channels / response to temperature stimulus / positive regulation of calcium ion import / calcium ion import across plasma membrane / endomembrane system / positive regulation of axon extension / monoatomic cation channel activity / axonal growth cone / calcium channel activity ...growth cone membrane / TRP channels / response to temperature stimulus / positive regulation of calcium ion import / calcium ion import across plasma membrane / endomembrane system / positive regulation of axon extension / monoatomic cation channel activity / axonal growth cone / calcium channel activity / melanosome / lamellipodium / positive regulation of cold-induced thermogenesis / cell body / negative regulation of cell population proliferation / axon / cell surface / identical protein binding / plasma membrane Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.0 Å | |||||||||
![]() | Dosey TL / Wang Z | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structures of TRPV2 in distinct conformations provide insight into role of the pore turret. Authors: Timothy L Dosey / Zhao Wang / Guizhen Fan / Zhixian Zhang / Irina I Serysheva / Wah Chiu / Theodore G Wensel / ![]() Abstract: Cation channels of the transient receptor potential (TRP) family serve important physiological roles by opening in response to diverse intra- and extracellular stimuli that regulate their lower or ...Cation channels of the transient receptor potential (TRP) family serve important physiological roles by opening in response to diverse intra- and extracellular stimuli that regulate their lower or upper gates. Despite extensive studies, the mechanism coupling these gates has remained obscure. Previous structures have failed to resolve extracellular loops, known in the TRPV subfamily as 'pore turrets', which are proximal to the upper gates. We established the importance of the pore turret through activity assays and by solving structures of rat TRPV2, both with and without an intact turret at resolutions of 4.0 Å and 3.6 Å, respectively. These structures resolve the full-length pore turret and reveal fully open and partially open states of TRPV2, both with unoccupied vanilloid pockets. Our results suggest a mechanism by which physiological signals, such as lipid binding, can regulate the lower gate and couple to the upper gate through a pore-turret-facilitated mechanism. | |||||||||
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 | ![]() | 14.5 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 11.1 KB 11.1 KB | Display Display | ![]() |
Images | ![]() ![]() ![]() ![]() | 169.2 KB 166.6 KB 171.2 KB 246.9 KB | ||
Filedesc metadata | ![]() | 5.9 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 570.3 KB | Display | ![]() |
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Full document | ![]() | 569.9 KB | Display | |
Data in XML | ![]() | 4.6 KB | Display | |
Data in CIF | ![]() | 5.4 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6bo4MC ![]() 7119C ![]() 6bo5C C: citing same article ( M: atomic model generated by this map |
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Similar structure data | |
EM raw data | ![]() Data size: 3.6 TB Data #1: TRPV2 WT with pore turret domain [micrographs - multiframe]) |
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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 | WT rat TRPV2 ion channel in an open state and with a resolved pore turret domain. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.25 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : TRPV2
Entire | Name: TRPV2 |
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Components |
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-Supramolecule #1: TRPV2
Supramolecule | Name: TRPV2 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 320 KDa |
-Macromolecule #1: Transient receptor potential cation channel subfamily V member 2
Macromolecule | Name: Transient receptor potential cation channel subfamily V member 2 type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 79.999422 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MVSANGDLHL PISNEQCMPE NNGSLGFEAP TPDRFDRDRL FSVVSRGVPE ELTGLLEYLR WNSKYLTDSA YTEGSTGKTC LMKAVLNLQ DGVNACIMPL LQIDKDSGNP KPLVNAQCTD EFYQGHSALH IAIEKRSLQC VKLLVENGAD VHLRACGRFF Q KHQGTCFY ...String: MVSANGDLHL PISNEQCMPE NNGSLGFEAP TPDRFDRDRL FSVVSRGVPE ELTGLLEYLR WNSKYLTDSA YTEGSTGKTC LMKAVLNLQ DGVNACIMPL LQIDKDSGNP KPLVNAQCTD EFYQGHSALH IAIEKRSLQC VKLLVENGAD VHLRACGRFF Q KHQGTCFY FGELPLSLAA CTKQWDVVTY LLENPHQPAS LEATDSLGNT VLHALVMIAD NSPENSALVI HMYDGLLQMG AR LCPTVQL EEISNHQGLT PLKLAAKEGK IEIFRHILQR EFSGPYQPLS RKFTEWCYGP VRVSLYDLSS VDSWEKNSVL EII AFHCKS PNRHRMVVLE PLNKLLQEKW DRLVSRFFFN FACYLVYMFI FTVVAYHQPS LDQPAIPSSK ATFGESMLLL GHIL ILLGG IYLLLGQLWY FWRRRLFIWI SFMDSYFEIL FLLQALLTVL SQVLRFMETE WYLPLLVLSL VLGWLNLLYY TRGFQ HTGI YSVMIQKVIL RDLLRFLLVY LVFLFGFAVA LVSLSREARS PKAPEDNNST VTEQPTVGQE EEPAPYRSIL DASLEL FKF TIGMGELAFQ EQLRFRGVVL LLLLAYVLLT YVLLLNMLIA LMSETVNHVA DNSWSIWKLQ KAISVLEMEN GYWWCRR KK HREGRLLKVG TRGDGTPDER WCFRVEEVNW AAWEKTLPTL SEDPTETSQV APASTOP UniProtKB: Transient receptor potential cation channel subfamily V member 2 |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | .5 mg/mL |
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Buffer | pH: 8 |
Grid | Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Details: unspecified |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 98 % / Chamber temperature: 298 K |
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Electron microscopy
Microscope | FEI POLARA 300 |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average exposure time: 10.0 sec. / Average electron dose: 63.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELD |
Experimental equipment | ![]() Model: Tecnai Polara / Image courtesy: FEI Company |