+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-20917 | |||||||||
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Title | Cryo-EM structure of human TRPV3 determined in lipid nanodisc | |||||||||
Map data | ||||||||||
Sample |
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Keywords | ion channel / TRPV3 / MEMBRANE PROTEIN | |||||||||
Function / homology | Function and homology information negative regulation of hair cycle / TRP channels / response to temperature stimulus / positive regulation of calcium ion import / calcium ion transmembrane transport / calcium channel activity / lysosome / receptor complex / identical protein binding / plasma membrane / cytoplasm Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.1 Å | |||||||||
Authors | Deng Z / Yuan P | |||||||||
Funding support | United States, 1 items
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Citation | Journal: Nat Struct Mol Biol / Year: 2020 Title: Gating of human TRPV3 in a lipid bilayer. Authors: Zengqin Deng / Grigory Maksaev / Michael Rau / Zili Xie / Hongzhen Hu / James A J Fitzpatrick / Peng Yuan / Abstract: The transient receptor potential cation channel subfamily V member 3 (TRPV3) channel plays a critical role in skin physiology, and mutations in TRPV3 result in the development of a congenital skin ...The transient receptor potential cation channel subfamily V member 3 (TRPV3) channel plays a critical role in skin physiology, and mutations in TRPV3 result in the development of a congenital skin disorder, Olmsted syndrome. Here we describe multiple cryo-electron microscopy structures of human TRPV3 reconstituted into lipid nanodiscs, representing distinct functional states during the gating cycle. The ligand-free, closed conformation reveals well-ordered lipids interacting with the channel and two physical constrictions along the ion-conduction pore involving both the extracellular selectivity filter and intracellular helix bundle crossing. Both the selectivity filter and bundle crossing expand upon activation, accompanied by substantial structural rearrangements at the cytoplasmic intersubunit interface. Transition to the inactivated state involves a secondary structure change of the pore-lining helix, which contains a π-helical segment in the closed and open conformations, but becomes entirely α-helical upon inactivation. Together with electrophysiological characterization, structures of TRPV3 in a lipid membrane environment provide unique insights into channel activation and inactivation mechanisms. | |||||||||
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_20917.map.gz | 59.9 MB | EMDB map data format | |
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Header (meta data) | emd-20917-v30.xml emd-20917.xml | 10.1 KB 10.1 KB | Display Display | EMDB header |
Images | emd_20917.png | 94.5 KB | ||
Filedesc metadata | emd-20917.cif.gz | 5.5 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-20917 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-20917 | HTTPS FTP |
-Validation report
Summary document | emd_20917_validation.pdf.gz | 593.7 KB | Display | EMDB validaton report |
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Full document | emd_20917_full_validation.pdf.gz | 593.3 KB | Display | |
Data in XML | emd_20917_validation.xml.gz | 6 KB | Display | |
Data in CIF | emd_20917_validation.cif.gz | 6.9 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-20917 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-20917 | HTTPS FTP |
-Related structure data
Related structure data | 6uw4MC 6uw6C 6uw8C 6uw9C M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_20917.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.1 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Sample components
-Entire : human TRPV3
Entire | Name: human TRPV3 |
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Components |
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-Supramolecule #1: human TRPV3
Supramolecule | Name: human TRPV3 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 |
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Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: Transient receptor potential cation channel subfamily V member 3
Macromolecule | Name: Transient receptor potential cation channel subfamily V member 3 type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 90.728789 KDa |
Recombinant expression | Organism: Komagataella pastoris (fungus) |
Sequence | String: MKAHPKEMVP LMGKRVAAPS GNPAVLPEKR PAEITPTKKS AHFFLEIEGF EPNPTVAKTS PPVFSKPMDS NIRQCISGNC DDMDSPQSP QDDVTETPSN PNSPSAQLAK EEQRRKKRRL KKRIFAAVSE GCVEELVELL VELQELCRRR HDEDVPDFLM H KLTASDTG ...String: MKAHPKEMVP LMGKRVAAPS GNPAVLPEKR PAEITPTKKS AHFFLEIEGF EPNPTVAKTS PPVFSKPMDS NIRQCISGNC DDMDSPQSP QDDVTETPSN PNSPSAQLAK EEQRRKKRRL KKRIFAAVSE GCVEELVELL VELQELCRRR HDEDVPDFLM H KLTASDTG KTCLMKALLN INPNTKEIVR ILLAFAEEND ILGRFINAEY TEEAYEGQTA LNIAIERRQG DIAALLIAAG AD VNAHAKG AFFNPKYQHE GFYFGETPLA LAACTNQPEI VQLLMEHEQT DITSRDSRGN NILHALVTVA EDFKTQNDFV KRM YDMILL RSGNWELETT RNNDGLTPLQ LAAKMGKAEI LKYILSREIK EKRLRSLSRK FTDWAYGPVS SSLYDLTNVD TTTD NSVLE ITVYNTNIDN RHEMLTLEPL HTLLHMKWKK FAKHMFFLSF CFYFFYNITL TLVSYYRPRE EEAIPHPLAL THKMG WLQL LGRMFVLIWA MCISVKEGIA IFLLRPSDLQ SILSDAWFHF VFFIQAVLVI LSVFLYLFAY KEYLACLVLA MALGWA NML YYTRGFQSMG MYSVMIQKVI LHDVLKFLFV YIVFLLGFGV ALASLIEKCP KDNKDCSSYG SFSDAVLELF KLTIGLG DL NIQQNSKYPI LFLFLLITYV ILTFVLLLNM LIALMGETVE NVSKESERIW RLQRARTILE FEKMLPEWLR SRFRMGEL C KVAEDDFRLC LRINEVKWTE WKTHVSFLNE DPGPVRRTDF NKIQDSSRNN SKTTLNAFEE VEEFPETSV UniProtKB: Transient receptor potential cation channel subfamily V member 3 |
-Macromolecule #2: [(2~{R})-1-[2-azanylethoxy(oxidanyl)phosphoryl]oxy-3-hexadecanoyl...
Macromolecule | Name: [(2~{R})-1-[2-azanylethoxy(oxidanyl)phosphoryl]oxy-3-hexadecanoyloxy-propan-2-yl] (~{Z})-octadec-9-enoate type: ligand / ID: 2 / Number of copies: 20 / Formula: 6OU |
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Molecular weight | Theoretical: 717.996 Da |
Chemical component information | ChemComp-6OU: |
-Macromolecule #3: SODIUM ION
Macromolecule | Name: SODIUM ION / type: ligand / ID: 3 / Number of copies: 1 |
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Molecular weight | Theoretical: 22.99 Da |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 1 mg/mL |
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Buffer | pH: 8 |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 62.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: OTHER / Imaging mode: OTHER |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Startup model | Type of model: OTHER |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 70711 |
Initial angle assignment | Type: ANGULAR RECONSTITUTION |
Final angle assignment | Type: ANGULAR RECONSTITUTION |