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Yorodumi- EMDB-25447: The complex of phosphorylated human cystic fibrosis transmembrane... -
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-Basic information
Entry | Database: EMDB / ID: EMD-25447 | |||||||||
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Title | The complex of phosphorylated human cystic fibrosis transmembrane conductance regulator (CFTR) with ATP/Mg and Lumacaftor (VX-809) | |||||||||
Map data | E1371QCFTR/lumacaftor/ATP | |||||||||
Sample |
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Keywords | ABC transporter / ion channel / folding correction / MEMBRANE PROTEIN / ATP-BINDING PROTEIN | |||||||||
Function / homology | Function and homology information positive regulation of voltage-gated chloride channel activity / positive regulation of cyclic nucleotide-gated ion 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 / intracellular pH elevation / amelogenesis ...positive regulation of voltage-gated chloride channel activity / positive regulation of cyclic nucleotide-gated ion 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 / intracellular pH elevation / amelogenesis / chloride channel inhibitor activity / ATPase-coupled inorganic anion transmembrane transporter activity / Golgi-associated vesicle membrane / multicellular organismal-level water homeostasis / cholesterol transport / membrane hyperpolarization / vesicle docking involved in exocytosis / bicarbonate transport / bicarbonate transmembrane transporter activity / chloride channel regulator activity / chloride transmembrane transporter activity / sperm capacitation / chloride channel activity / cholesterol biosynthetic process / RHOQ GTPase cycle / positive regulation of insulin secretion involved in cellular response to glucose stimulus / positive regulation of exocytosis / chloride channel complex / ATPase-coupled transmembrane transporter activity / ABC-type transporter activity / cellular response to forskolin / cellular response to cAMP / chloride transmembrane transport / response to endoplasmic reticulum stress / isomerase activity / establishment of localization in cell / PDZ domain binding / Defective CFTR causes cystic fibrosis / Late endosomal microautophagy / clathrin-coated endocytic vesicle membrane / ABC-family proteins mediated transport / transmembrane transport / recycling endosome / Aggrephagy / Chaperone Mediated Autophagy / recycling endosome membrane / 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 / ATP hydrolysis activity / protein-containing complex / ATP binding / membrane / nucleus / plasma membrane / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.7 Å | |||||||||
Authors | Fiedorczuk K / Chen J | |||||||||
Funding support | United States, 2 items
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Citation | Journal: Cell / Year: 2022 Title: 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. | |||||||||
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_25447.map.gz | 304.3 MB | EMDB map data format | |
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Header (meta data) | emd-25447-v30.xml emd-25447.xml | 14.5 KB 14.5 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_25447_fsc.xml | 15.6 KB | Display | FSC data file |
Images | emd_25447.png | 149.5 KB | ||
Filedesc metadata | emd-25447.cif.gz | 6.4 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-25447 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-25447 | HTTPS FTP |
-Validation report
Summary document | emd_25447_validation.pdf.gz | 686 KB | Display | EMDB validaton report |
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Full document | emd_25447_full_validation.pdf.gz | 685.6 KB | Display | |
Data in XML | emd_25447_validation.xml.gz | 14.6 KB | Display | |
Data in CIF | emd_25447_validation.cif.gz | 19.9 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-25447 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-25447 | HTTPS FTP |
-Related structure data
Related structure data | 7svdMC 7sv7C 7svrC C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data | |
EM raw data | EMPIAR-11008 (Title: The complex of phosphorylated human cystic fibrosis transmembrane conductance regulator (CFTR) with ATP/Mg and Lumacaftor (VX-809) Data size: 5.8 TB Data #1: Unaligned multi-frame micrographs of phosphorylated human cystic fibrosis transmembrane conductance regulator (CFTR) with ATP/Mg and Lumacaftor (VX-809) [micrographs - multiframe]) |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_25447.map.gz / Format: CCP4 / Size: 325 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | E1371QCFTR/lumacaftor/ATP | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.676 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 : 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: DODECANE
+Macromolecule #6: DECANE
+Macromolecule #7: CHOLESTEROL
+Macromolecule #8: Lumacaftor
+Macromolecule #9: UNKNOWN ATOM OR ION
+Macromolecule #10: water
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.4 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 98.0 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 |