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Yorodumi- EMDB-25445: The complex of phosphorylated human cystic fibrosis transmembrane... -
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Basic information
| Entry | Database: EMDB / ID: EMD-25445 | |||||||||
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| Title | The complex of phosphorylated human cystic fibrosis transmembrane conductance regulator (CFTR) with ATP/Mg and Tezacaftor (VX-661) | |||||||||
Map data | E1371QCFTR/tezacaftor/ATP | |||||||||
Sample |
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Keywords | ABC transporter / ion channel / folding correction / ATP-BINDING PROTEIN / MEMBRANE PROTEIN | |||||||||
| Function / homology | Function and homology informationpositive regulation of voltage-gated chloride channel activity / : / Sec61 translocon complex binding / channel-conductance-controlling ATPase / intracellularly ATP-gated chloride channel activity / positive regulation of enamel mineralization / transepithelial water transport / RHO GTPases regulate CFTR trafficking / amelogenesis / intracellular pH elevation ...positive regulation of voltage-gated chloride channel activity / : / Sec61 translocon complex binding / channel-conductance-controlling ATPase / intracellularly ATP-gated chloride channel activity / positive regulation of enamel mineralization / transepithelial water transport / RHO GTPases regulate CFTR trafficking / amelogenesis / intracellular pH elevation / chloride channel inhibitor activity / : / Golgi-associated vesicle membrane / multicellular organismal-level water homeostasis / cholesterol transport / bicarbonate transport / bicarbonate transmembrane transporter activity / vesicle docking involved in exocytosis / chloride channel regulator activity / membrane hyperpolarization / chloride transmembrane transporter activity / sperm capacitation / cholesterol biosynthetic process / RHOQ GTPase cycle / chloride channel activity / positive regulation of exocytosis / ATPase-coupled transmembrane transporter activity / chloride channel complex / positive regulation of insulin secretion involved in cellular response to glucose stimulus / ABC-type transporter activity / 14-3-3 protein binding / cellular response to forskolin / chloride transmembrane transport / response to endoplasmic reticulum stress / cellular response to cAMP / PDZ domain binding / establishment of localization in cell / clathrin-coated endocytic vesicle membrane / Defective CFTR causes cystic fibrosis / Late endosomal microautophagy / recycling endosome / ABC-family proteins mediated transport / transmembrane transport / recycling endosome membrane / Chaperone Mediated Autophagy / Aggrephagy / Cargo recognition for clathrin-mediated endocytosis / Clathrin-mediated endocytosis / protein-folding chaperone binding / early endosome membrane / early endosome / endosome membrane / Ub-specific processing proteases / apical plasma membrane / lysosomal membrane / endoplasmic reticulum membrane / enzyme binding / cell surface / protein-containing complex / ATP hydrolysis activity / ATP binding / nucleus / membrane / plasma membrane / cytoplasm / cytosol Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.8 Å | |||||||||
Authors | Fiedorczuk K / Chen J | |||||||||
| Funding support | United States, 2 items
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Citation | Journal: Cell / Year: 2022Title: Mechanism of CFTR correction by type I folding correctors. Authors: Karol Fiedorczuk / Jue Chen / ![]() Abstract: Small molecule chaperones have been exploited as therapeutics for the hundreds of diseases caused by protein misfolding. The most successful examples are the CFTR correctors, which transformed cystic ...Small molecule chaperones have been exploited as therapeutics for the hundreds of diseases caused by protein misfolding. The most successful examples are the CFTR correctors, which transformed cystic fibrosis therapy. These molecules revert folding defects of the ΔF508 mutant and are widely used to treat patients. To investigate the molecular mechanism of their action, we determined cryo-electron microscopy structures of CFTR in complex with the FDA-approved correctors lumacaftor or tezacaftor. Both drugs insert into a hydrophobic pocket in the first transmembrane domain (TMD1), linking together four helices that are thermodynamically unstable. Mutating residues at the binding site rendered ΔF508-CFTR insensitive to lumacaftor and tezacaftor, underscoring the functional significance of the structural discovery. These results support a mechanism in which the correctors stabilize TMD1 at an early stage of biogenesis, prevent its premature degradation, and thereby allosterically rescuing many disease-causing mutations. | |||||||||
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Structure visualization
| Movie |
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_25445.map.gz | 96.4 MB | EMDB map data format | |
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| Header (meta data) | emd-25445-v30.xml emd-25445.xml | 20.8 KB 20.8 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_25445_fsc.xml | 10.7 KB | Display | FSC data file |
| Images | emd_25445.png | 143 KB | ||
| Filedesc metadata | emd-25445.cif.gz | 7.8 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-25445 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-25445 | HTTPS FTP |
-Validation report
| Summary document | emd_25445_validation.pdf.gz | 635.8 KB | Display | EMDB validaton report |
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| Full document | emd_25445_full_validation.pdf.gz | 635.3 KB | Display | |
| Data in XML | emd_25445_validation.xml.gz | 11.7 KB | Display | |
| Data in CIF | emd_25445_validation.cif.gz | 15.6 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-25445 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-25445 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 7sv7MC ![]() 7svdC ![]() 7svrC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data | |
| EM raw data | EMPIAR-11007 (Title: The complex of phosphorylated human cystic fibrosis transmembrane conductance regulator (CFTR) with ATP/Mg and Tezacaftor (VX-661)Data size: 1.8 TB Data #1: Unaligned multi-frame micrographs of phosphorylated human cystic fibrosis transmembrane conductance regulator (CFTR) with ATP/Mg and Tezacaftor (VX-661) [micrographs - multiframe]) |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_25445.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | E1371QCFTR/tezacaftor/ATP | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.03 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 : The complex of phosphorylated human cystic fibrosis transmembrane...
+Supramolecule #1: The complex of phosphorylated human cystic fibrosis transmembrane...
+Macromolecule #1: Cystic fibrosis transmembrane conductance regulator
+Macromolecule #2: Cystic fibrosis transmembrane conductance regulator
+Macromolecule #3: MAGNESIUM ION
+Macromolecule #4: ADENOSINE-5'-TRIPHOSPHATE
+Macromolecule #5: nonane
+Macromolecule #6: DODECANE
+Macromolecule #7: CHOLESTEROL
+Macromolecule #8: TETRADECANE
+Macromolecule #9: heptadecane
+Macromolecule #10: Tezacaftor
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.4 |
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| Vitrification | Cryogen name: ETHANE |
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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: 80.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi


Keywords
Homo sapiens (human)
Authors
United States, 2 items
Citation
UCSF Chimera
















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