+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-1831 | |||||||||
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Title | Pig Gastric H,K-ATPase with bound BeF and SCH28080 | |||||||||
Map data | This is an image of a surface rendered side view of H,K-ATPase with bound BeF and SCH28080 | |||||||||
Sample |
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Keywords | ION PUMP / H/K-ATPASE / P-TYPE ATPASE / MEMBRANE PROTEIN / BERYLLIUM FLUORIDE / ATP-BINDING / ACID SUPPRESSANT | |||||||||
Function / homology | Function and homology information proton transmembrane transport => GO:1902600 / Basigin interactions / Ion homeostasis / H+/K+-exchanging ATPase / potassium:proton exchanging ATPase complex / positive regulation of P-type sodium:potassium-exchanging transporter activity / P-type potassium:proton transporter activity / positive regulation of sodium ion export across plasma membrane / positive regulation of potassium ion import across plasma membrane / Ion transport by P-type ATPases ...proton transmembrane transport => GO:1902600 / Basigin interactions / Ion homeostasis / H+/K+-exchanging ATPase / potassium:proton exchanging ATPase complex / positive regulation of P-type sodium:potassium-exchanging transporter activity / P-type potassium:proton transporter activity / positive regulation of sodium ion export across plasma membrane / positive regulation of potassium ion import across plasma membrane / Ion transport by P-type ATPases / P-type sodium:potassium-exchanging transporter activity / sodium:potassium-exchanging ATPase complex / membrane repolarization / ATP biosynthetic process / establishment or maintenance of transmembrane electrochemical gradient / sodium ion export across plasma membrane / intracellular potassium ion homeostasis / intracellular sodium ion homeostasis / potassium ion import across plasma membrane / potassium ion binding / ATPase activator activity / potassium ion transmembrane transport / proton transmembrane transport / potassium ion transport / sarcolemma / transmembrane transport / ATPase binding / protein-macromolecule adaptor activity / cell adhesion / apical plasma membrane / innate immune response / magnesium ion binding / ATP hydrolysis activity / ATP binding / plasma membrane Similarity search - Function | |||||||||
Biological species | Sus scrofa (pig) | |||||||||
Method | electron crystallography / cryo EM / Resolution: 7.0 Å | |||||||||
Authors | Abe K / Tani K / Fujiyoshi Y | |||||||||
Citation | Journal: Nat Commun / Year: 2011 Title: Conformational rearrangement of gastric H(+),K(+)-ATPase induced by an acid suppressant. Authors: Kazuhiro Abe / Kazutoshi Tani / Yoshinori Fujiyoshi / Abstract: Acid-related gastric diseases are associated with disorder of digestive tract acidification. The gastric proton pump, H(+),K(+)-ATPase, exports H(+) in exchange for luminal K(+) to generate a highly ...Acid-related gastric diseases are associated with disorder of digestive tract acidification. The gastric proton pump, H(+),K(+)-ATPase, exports H(+) in exchange for luminal K(+) to generate a highly acidic environment in the stomach, and is a main target for acid suppressants. Here, we report the three-dimensional structure of gastric H(+),K(+)-ATPase with bound SCH28080, a representative K(+)-competitive acid blocker, at 7 Å resolution based on electron crystallography of two-dimensional crystals. The density of the bound SCH28080 is found near transmembrane (TM) helices 4, 5 and 6, in the luminal cavity. The SCH28080-binding site is formed by the rearrangement of TM helices, which is in turn transmitted to the cytoplasmic domains, resulting in a luminal-open conformation. These results represent the first structural evidence for a binding site of an acid suppressant on H(+),K(+)-ATPase, and the conformational change induced by this class of drugs. | |||||||||
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_1831.map.gz | 1.5 MB | EMDB map data format | |
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Header (meta data) | emd-1831-v30.xml emd-1831.xml | 14.1 KB 14.1 KB | Display Display | EMDB header |
Images | emd_1831.png | 83.2 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-1831 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-1831 | HTTPS FTP |
-Validation report
Summary document | emd_1831_validation.pdf.gz | 218 KB | Display | EMDB validaton report |
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Full document | emd_1831_full_validation.pdf.gz | 217.1 KB | Display | |
Data in XML | emd_1831_validation.xml.gz | 4.3 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-1831 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-1831 | HTTPS FTP |
-Related structure data
Related structure data | 2xzbMC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_1831.map.gz / Format: CCP4 / Size: 1.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | This is an image of a surface rendered side view of H,K-ATPase with bound BeF and SCH28080 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. generated in cubic-lattice coordinate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X: 2.35 Å / Y: 2.32 Å / Z: 2.29 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 18 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Sample components
-Entire : Pig Gastric H,K-ATPase
Entire | Name: Pig Gastric H,K-ATPase |
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Components |
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-Supramolecule #1000: Pig Gastric H,K-ATPase
Supramolecule | Name: Pig Gastric H,K-ATPase / type: sample / ID: 1000 / Oligomeric state: One alpha and one beta chain of HK-ATPase / Number unique components: 2 |
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Molecular weight | Theoretical: 150 KDa |
-Macromolecule #1: POTASSIUM-TRANSPORTING ATPASE ALPHA CHAIN 1
Macromolecule | Name: POTASSIUM-TRANSPORTING ATPASE ALPHA CHAIN 1 / type: protein_or_peptide / ID: 1 / Name.synonym: Gastric proton pump / Number of copies: 1 / Oligomeric state: Dimer / Recombinant expression: No / Database: NCBI |
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Source (natural) | Organism: Sus scrofa (pig) / synonym: Pig / Tissue: stomach / Location in cell: Plasma membrane |
Molecular weight | Theoretical: 150 KDa |
Sequence | UniProtKB: Potassium-transporting ATPase alpha chain 1 GO: ATP biosynthetic process, proton transmembrane transport => GO:1902600, potassium ion transport InterPro: P-type ATPase, A domain superfamily, P-type ATPase subfamily IIC, subunit alpha, INTERPRO: IPR006069, Cation-transporting P-type ATPase, C-terminal, Cation-transporting P-type ATPase, N- ...InterPro: P-type ATPase, A domain superfamily, P-type ATPase subfamily IIC, subunit alpha, INTERPRO: IPR006069, Cation-transporting P-type ATPase, C-terminal, Cation-transporting P-type ATPase, N-terminal, Gastric H+/K+-transporter P-type ATPase, N-terminal, P-type ATPase, INTERPRO: IPR005834, Sodium/potassium-transporting ATPase subunit beta |
-Macromolecule #2: POTASSIUM-TRANSPORTING ATPASE SUBUNIT BETA
Macromolecule | Name: POTASSIUM-TRANSPORTING ATPASE SUBUNIT BETA / type: protein_or_peptide / ID: 2 / Name.synonym: Gastric proton pump / Number of copies: 1 / Oligomeric state: Dimer / Recombinant expression: No / Database: NCBI |
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Source (natural) | Organism: Sus scrofa (pig) / synonym: Pig / Tissue: Stomach / Location in cell: Plasma membrane |
Molecular weight | Theoretical: 150 KDa |
Sequence | UniProtKB: Sodium/potassium-transporting ATPase subunit beta-1 GO: ATP biosynthetic process, proton transmembrane transport => GO:1902600, potassium ion transport InterPro: P-type ATPase, A domain superfamily, P-type ATPase subfamily IIC, subunit alpha, INTERPRO: IPR006069, Cation-transporting P-type ATPase, C-terminal, Cation-transporting P-type ATPase, N- ...InterPro: P-type ATPase, A domain superfamily, P-type ATPase subfamily IIC, subunit alpha, INTERPRO: IPR006069, Cation-transporting P-type ATPase, C-terminal, Cation-transporting P-type ATPase, N-terminal, Gastric H+/K+-transporter P-type ATPase, N-terminal, P-type ATPase, INTERPRO: IPR005834, Sodium/potassium-transporting ATPase subunit beta |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | electron crystallography |
Aggregation state | 2D array |
-Sample preparation
Concentration | 8 mg/mL |
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Buffer | pH: 5.5 Details: 20mM MES, 20mM Mg(CH3COO)2, 5mM ATP, 10%(v/v) glycerol, 3mM DTT |
Vitrification | Cryogen name: NITROGEN / Chamber temperature: 100 K / Instrument: REICHERT-JUNG PLUNGER Details: Vitrification instrument: Reichert plunger. Vitrification carried out in cold room at 4 degrees celsius Method: Carbon sandwich preparation |
Details | Crystal grown in dialysis |
Crystal formation | Details: Crystal grown in dialysis |
-Electron microscopy
Microscope | JEOL KYOTO-3000SFF |
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Temperature | Average: 4.5 K |
Alignment procedure | Legacy - Astigmatism: Objective lens astigmatism was corrected at 400,000 times magnification |
Date | Mar 29, 2010 |
Image recording | Category: FILM / Film or detector model: KODAK SO-163 FILM / Digitization - Scanner: ZEISS SCAI / Digitization - Sampling interval: 7 µm / Number real images: 515 / Average electron dose: 25 e/Å2 / Bits/pixel: 12 |
Tilt angle min | 0 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 1.6 mm / Nominal defocus max: 4.13 µm / Nominal defocus min: 0.58 µm / Nominal magnification: 40000 |
Sample stage | Specimen holder: Top entry / Specimen holder model: JEOL / Tilt angle max: 64 / Tilt series - Axis1 - Min angle: 0 ° / Tilt series - Axis1 - Max angle: 64.0 ° |
-Image processing
Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 7.0 Å / Resolution method: OTHER / Software - Name: MRC |
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Crystal parameters | Unit cell - A: 140.9 Å / Unit cell - B: 111.3 Å / Unit cell - C: 320.0 Å / Unit cell - γ: 90.0 ° / Unit cell - α: 90.0 ° / Unit cell - β: 90.0 ° / Plane group: P 2 21 21 |
CTF correction | Details: Each image |