[English] 日本語
Yorodumi- EMDB-43011: Phosphorylated, ATP-bound, E1371Q human cystic fibrosis transmemb... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-43011 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Title | Phosphorylated, ATP-bound, E1371Q human cystic fibrosis transmembrane conductance regulator (E1371Q-CFTR) | |||||||||
Map data | ||||||||||
Sample |
| |||||||||
Keywords | cystic fibrosis / chloride channel / hydrolysis-deficient mutant / MEMBRANE 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 exocytosis / positive regulation of insulin secretion involved in cellular response to glucose stimulus / chloride channel complex / ATPase-coupled transmembrane transporter activity / ABC-type transporter activity / cellular response to cAMP / cellular response to forskolin / chloride transmembrane transport / response to endoplasmic reticulum stress / isomerase activity / clathrin-coated endocytic vesicle membrane / establishment of localization in cell / PDZ domain binding / Defective CFTR causes cystic fibrosis / Late endosomal microautophagy / ABC-family proteins mediated transport / recycling endosome / transmembrane transport / Aggrephagy / Chaperone Mediated Autophagy / recycling endosome membrane / Cargo recognition for clathrin-mediated endocytosis / Clathrin-mediated endocytosis / early endosome membrane / protein-folding chaperone binding / endosome membrane / early endosome / 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 / cytoplasm / cytosol Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.4 Å | |||||||||
Authors | Gao X / Hwang T | |||||||||
Funding support | United States, 2 items
| |||||||||
Citation | Journal: Nat Commun / Year: 2024 Title: Allosteric inhibition of CFTR gating by CFTRinh-172 binding in the pore. Authors: Xiaolong Gao / Han-I Yeh / Zhengrong Yang / Chen Fan / Fan Jiang / Rebecca J Howard / Erik Lindahl / John C Kappes / Tzyh-Chang Hwang / Abstract: Loss-of-function mutations of the CFTR gene cause the life-shortening genetic disease cystic fibrosis (CF), whereas overactivity of CFTR may lead to secretory diarrhea and polycystic kidney disease. ...Loss-of-function mutations of the CFTR gene cause the life-shortening genetic disease cystic fibrosis (CF), whereas overactivity of CFTR may lead to secretory diarrhea and polycystic kidney disease. While effective drugs targeting the CFTR protein have been developed for the treatment of CF, little progress has been made for diseases caused by hyper-activated CFTR. Here, we solve the cryo-EM structure of CFTR in complex with CFTRinh-172 (Inh-172), a CFTR gating inhibitor with promising potency and efficacy. We find that Inh-172 binds inside the pore of CFTR, interacting with amino acid residues from transmembrane segments (TMs) 1, 6, 8, 9, and 12 through mostly hydrophobic interactions and a salt bridge. Substitution of these residues lowers the apparent affinity of Inh-172. The inhibitor-bound structure reveals re-orientations of the extracellular segment of TMs 1, 8, and 12, supporting an allosteric modulation mechanism involving post-binding conformational changes. This allosteric inhibitory mechanism readily explains our observations that pig CFTR, which preserves all the amino acid residues involved in Inh-172 binding, exhibits a much-reduced sensitivity to Inh-172 and that the apparent affinity of Inh-172 is altered by the CF drug ivacaftor (i.e., VX-770) which enhances CFTR's activity through binding to a site also comprising TM8. | |||||||||
History |
|
-Structure visualization
Supplemental images |
---|
-Downloads & links
-EMDB archive
Map data | emd_43011.map.gz | 4.8 MB | EMDB map data format | |
---|---|---|---|---|
Header (meta data) | emd-43011-v30.xml emd-43011.xml | 16.3 KB 16.3 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_43011_fsc.xml | 9.3 KB | Display | FSC data file |
Images | emd_43011.png | 137.9 KB | ||
Filedesc metadata | emd-43011.cif.gz | 6.6 KB | ||
Others | emd_43011_half_map_1.map.gz emd_43011_half_map_2.map.gz | 52.1 MB 52.1 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-43011 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-43011 | HTTPS FTP |
-Validation report
Summary document | emd_43011_validation.pdf.gz | 653.8 KB | Display | EMDB validaton report |
---|---|---|---|---|
Full document | emd_43011_full_validation.pdf.gz | 653.4 KB | Display | |
Data in XML | emd_43011_validation.xml.gz | 16.1 KB | Display | |
Data in CIF | emd_43011_validation.cif.gz | 20.8 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-43011 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-43011 | HTTPS FTP |
-Related structure data
Related structure data | 8v7zMC 8v81C C: citing same article (ref.) M: atomic model generated by this map |
---|---|
Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
---|---|
Related items in Molecule of the Month |
-Map
File | Download / File: emd_43011.map.gz / Format: CCP4 / Size: 67 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Voxel size | X=Y=Z: 1.058 Å | ||||||||||||||||||||
Density |
| ||||||||||||||||||||
Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
|
-Supplemental data
-Half map: #2
File | emd_43011_half_map_1.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Projections & Slices |
| ||||||||||||
Density Histograms |
-Half map: #1
File | emd_43011_half_map_2.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Projections & Slices |
| ||||||||||||
Density Histograms |
-Sample components
-Entire : E1371Q-CFTR
Entire | Name: E1371Q-CFTR |
---|---|
Components |
|
-Supramolecule #1: E1371Q-CFTR
Supramolecule | Name: E1371Q-CFTR / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 |
---|---|
Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: Cystic fibrosis transmembrane conductance regulator
Macromolecule | Name: Cystic fibrosis transmembrane conductance regulator / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO / EC number: channel-conductance-controlling ATPase |
---|---|
Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 161.518891 KDa |
Recombinant expression | Organism: Cricetulus griseus (Chinese hamster) |
Sequence | String: VVSKLFFSWT RPILRKGYRQ RLELSDIYQI PSVDSADNLS EKLEREWDRE LASKKNPKLI NALRRCFFWR FMFYGIFLYL GEVTKAVQP LLLGRIIASY DPDNKEERSI AIYLGIGLCL LFIVRTLLLH PAIFGLHHIG MQMRIAMFSL IYKKTLKLSS R VLDKISIG ...String: VVSKLFFSWT RPILRKGYRQ RLELSDIYQI PSVDSADNLS EKLEREWDRE LASKKNPKLI NALRRCFFWR FMFYGIFLYL GEVTKAVQP LLLGRIIASY DPDNKEERSI AIYLGIGLCL LFIVRTLLLH PAIFGLHHIG MQMRIAMFSL IYKKTLKLSS R VLDKISIG QLVSLLSNNL NKFDEGLALA HFVWIAPLQV ALLMGLIWEL LQASAFCGLG FLIVLALFQA GLGRMMMKYR DQ RAGKISE RLVITSEMIE NIQSVKAYCW EEAMEKMIEN LRQTELKLTR KAAYVRYFNS SAFFFSGFFV VFLSVLPYAL IKG IILRKI FTTISFCIVL RMAVTRQFPW AVQTWYDSLG AINKIQDFLQ KQEYKTLEYN LTTTEVVMEN VTAFWEEGFG ELFE KAKQN NNNRKTSNGD DSLFFSNFSL LGTPVLKDIN FKIERGQLLA VAGSTGAGKT SLLMVIMGEL EPSEGKIKHS GRISF CPQF PWIMPGTIKE NIIFGVSYDE YRYRSVIKAC QLEEDISKFP EKDNTVLGEG GITLSGGQRA KISLARAVYK DADLYL LDS PFGYLDVLTE KEIFESCVCK LMANKTRILV TSKMEHLKKA DKILILHEGS SYFYGTFSEL QNLQPDFSSK LMGCDSF DQ FSAERRNSIL TETLHRFSLE GDAPVSWTET KKQSFKQTGE FGEKRKNSIL NPINSIRKFS IVQKTPLQMN GIEEDSDE P LERRLSLVPD SEQGEAILPR ISVISTGPTL QARRRQSVLN LMTHSVNQGQ NIHRKTTAST RKVSLAPQAN LTELDIYSR RLSQETGLEI SEEINEEDLK ECFFDDMESI PAVTTWNTYL RYITVHKSLI FVLIWCLVIF LAEVAASLVV LWLLGNTPLQ DKGNSTHSR NNSYAVIITS TSSYYVFYIY VGVADTLLAM GFFRGLPLVH TLITVSKILH HKMLHSVLQA PMSTLNTLKA G GILNRFSK DIAILDDLLP LTIFDFIQLL LIVIGAIAVV AVLQPYIFVA TVPVIVAFIM LRAYFLQTSQ QLKQLESEGR SP IFTHLVT SLKGLWTLRA FGRQPYFETL FHKALNLHTA NWFLYLSTLR WFQMRIEMIF VIFFIAVTFI SILTTGEGEG RVG IILTLA MNIMSTLQWA VNSSIDVDSL MRSVSRVFKF IDMPTEGKPT KSTKPYKNGQ LSKVMIIENS HVKKDDIWPS GGQM TVKDL TAKYTEGGNA ILENISFSIS PGQRVGLLGR TGSGKSTLLS AFLRLLNTEG EIQIDGVSWD SITLQQWRKA FGVIP QKVF IFSGTFRKNL DPYEQWSDQE IWKVADEVGL RSVIEQFPGK LDFVLVDGGC VLSHGHKQLM CLARSVLSKA KILLLD QPS AHLDPVTYQI IRRTLKQAFA DCTVILCEHR IEAMLECQQF LVIEENKVRQ YDSIQKLL UniProtKB: Cystic fibrosis transmembrane conductance regulator |
-Macromolecule #2: MAGNESIUM ION
Macromolecule | Name: MAGNESIUM ION / type: ligand / ID: 2 / Number of copies: 2 / Formula: MG |
---|---|
Molecular weight | Theoretical: 24.305 Da |
-Macromolecule #3: ADENOSINE-5'-TRIPHOSPHATE
Macromolecule | Name: ADENOSINE-5'-TRIPHOSPHATE / type: ligand / ID: 3 / Number of copies: 2 / Formula: ATP |
---|---|
Molecular weight | Theoretical: 507.181 Da |
Chemical component information | ChemComp-ATP: |
-Macromolecule #4: (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(tri...
Macromolecule | Name: (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate type: ligand / ID: 4 / Number of copies: 5 / Formula: POV |
---|---|
Molecular weight | Theoretical: 760.076 Da |
Chemical component information | ChemComp-POV: |
-Macromolecule #5: CHOLESTEROL
Macromolecule | Name: CHOLESTEROL / type: ligand / ID: 5 / Number of copies: 1 / Formula: CLR |
---|---|
Molecular weight | Theoretical: 386.654 Da |
Chemical component information | ChemComp-CLR: |
-Experimental details
-Structure determination
Method | cryo EM |
---|---|
Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.5 |
---|---|
Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | TFS KRIOS |
---|---|
Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 1.33375 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: OTHER / Imaging mode: OTHER / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.5 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |