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Yorodumi- EMDB-3428: Electron cryo-microscopy of human P-glycoprotein: ADP bound state... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-3428 | |||||||||
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Title | Electron cryo-microscopy of human P-glycoprotein: ADP bound state - open conformation #1 | |||||||||
Map data | Reconstruction of human P-glycoprotein in an ADP-binding state, and bound to UIC2 Fab | |||||||||
Sample |
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Keywords | human P-Glycoprotein / ABCB1 / MDR-1 / open conformation / ADP bound state / UIC2 Fab | |||||||||
Function / homology | Function and homology information positive regulation of anion channel activity / carboxylic acid transmembrane transport / carboxylic acid transmembrane transporter activity / terpenoid transport / ceramide floppase activity / regulation of response to osmotic stress / floppase activity / ceramide translocation / Abacavir transmembrane transport / external side of apical plasma membrane ...positive regulation of anion channel activity / carboxylic acid transmembrane transport / carboxylic acid transmembrane transporter activity / terpenoid transport / ceramide floppase activity / regulation of response to osmotic stress / floppase activity / ceramide translocation / Abacavir transmembrane transport / external side of apical plasma membrane / Atorvastatin ADME / phosphatidylethanolamine flippase activity / xenobiotic transport across blood-brain barrier / transepithelial transport / phosphatidylcholine floppase activity / xenobiotic detoxification by transmembrane export across the plasma membrane / export across plasma membrane / ABC-type xenobiotic transporter / P-type phospholipid transporter / ABC-type xenobiotic transporter activity / phospholipid translocation / Prednisone ADME / efflux transmembrane transporter activity / xenobiotic transmembrane transporter activity / transmembrane transporter activity / ATPase-coupled transmembrane transporter activity / transport across blood-brain barrier / xenobiotic metabolic process / regulation of chloride transport / stem cell proliferation / ABC-family proteins mediated transport / transmembrane transport / G2/M transition of mitotic cell cycle / response to xenobiotic stimulus / apical plasma membrane / ubiquitin protein ligase binding / cell surface / ATP hydrolysis activity / extracellular exosome / ATP binding / membrane / plasma membrane / cytoplasm Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) / Mus musculus (house mouse) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 21.0 Å | |||||||||
Authors | Frank GA / Shukla S / Rao P / Borgnia MJ / Bartesaghi A / Merk A / Mobin A / Esser L / Earl LA / Gottesman MM ...Frank GA / Shukla S / Rao P / Borgnia MJ / Bartesaghi A / Merk A / Mobin A / Esser L / Earl LA / Gottesman MM / Xia D / Ambudkar SV / Subramaniam S | |||||||||
Citation | Journal: Mol Pharmacol / Year: 2016 Title: Cryo-EM Analysis of the Conformational Landscape of Human P-glycoprotein (ABCB1) During its Catalytic Cycle. Authors: Gabriel A Frank / Suneet Shukla / Prashant Rao / Mario J Borgnia / Alberto Bartesaghi / Alan Merk / Aerfa Mobin / Lothar Esser / Lesley A Earl / Michael M Gottesman / Di Xia / Suresh V ...Authors: Gabriel A Frank / Suneet Shukla / Prashant Rao / Mario J Borgnia / Alberto Bartesaghi / Alan Merk / Aerfa Mobin / Lothar Esser / Lesley A Earl / Michael M Gottesman / Di Xia / Suresh V Ambudkar / Sriram Subramaniam / Abstract: The multidrug transporter P-glycoprotein (P-gp, ABCB1) is an ATP-dependent pump that mediates the efflux of structurally diverse drugs and xenobiotics across cell membranes, affecting drug ...The multidrug transporter P-glycoprotein (P-gp, ABCB1) is an ATP-dependent pump that mediates the efflux of structurally diverse drugs and xenobiotics across cell membranes, affecting drug pharmacokinetics and contributing to the development of multidrug resistance. Structural information about the conformational changes in human P-gp during the ATP hydrolysis cycle has not been directly demonstrated, although mechanistic information has been inferred from biochemical and biophysical studies conducted with P-gp and its orthologs, or from structures of other ATP-binding cassette transporters. Using single-particle cryo-electron microscopy, we report the surprising discovery that, in the absence of the transport substrate and nucleotides, human P-gp can exist in both open [nucleotide binding domains (NBDs) apart; inward-facing] and closed (NBDs close; outward-facing) conformations. We also probe conformational states of human P-gp during the catalytic cycle, and demonstrate that, following ATP hydrolysis, P-gp transitions through a complete closed conformation to a complete open conformation in the presence of ADP. | |||||||||
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_3428.map.gz | 9.3 MB | EMDB map data format | |
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Header (meta data) | emd-3428-v30.xml emd-3428.xml | 13 KB 13 KB | Display Display | EMDB header |
Images | emd_3428.png | 983.3 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-3428 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-3428 | HTTPS FTP |
-Validation report
Summary document | emd_3428_validation.pdf.gz | 191.4 KB | Display | EMDB validaton report |
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Full document | emd_3428_full_validation.pdf.gz | 190.5 KB | Display | |
Data in XML | emd_3428_validation.xml.gz | 6.1 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-3428 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-3428 | HTTPS FTP |
-Related structure data
Related structure data | 3421C 3422C 3423C 3424C 3425C 3426C 3427C 3429C 3430C 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_3428.map.gz / Format: CCP4 / Size: 41.9 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Reconstruction of human P-glycoprotein in an ADP-binding state, and bound to UIC2 Fab | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.403 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 P-glycoprotein in an ADP bounding state, bound to UIC2 Fab
Entire | Name: human P-glycoprotein in an ADP bounding state, bound to UIC2 Fab |
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Components |
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-Supramolecule #1000: human P-glycoprotein in an ADP bounding state, bound to UIC2 Fab
Supramolecule | Name: human P-glycoprotein in an ADP bounding state, bound to UIC2 Fab type: sample / ID: 1000 Oligomeric state: One monomer of P-glycoprotein bound to one UIC2 Fab Number unique components: 2 |
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Molecular weight | Theoretical: 190 KDa |
-Macromolecule #1: P-glycoprotein
Macromolecule | Name: P-glycoprotein / type: protein_or_peptide / ID: 1 / Name.synonym: P-gp, Pgp, ABCB1, MDR1 / Number of copies: 1 / Oligomeric state: Monomer / Recombinant expression: Yes |
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Source (natural) | Organism: Homo sapiens (human) / synonym: Human / Location in cell: Plasma membrane |
Molecular weight | Theoretical: 141 KDa |
Recombinant expression | Organism: Trichoplusia ni (cabbage looper) / Recombinant strain: BTI-TN-5B1-4 / Recombinant cell: High Five insect cells |
Sequence | UniProtKB: ATP-dependent translocase ABCB1 InterPro: AAA+ ATPase domain, ABC transporter type 1, transmembrane domain, ABC transporter-like, ATP-binding domain, ABC transporter-like, conserved site, P-loop containing nucleoside triphosphate hydrolase |
-Macromolecule #2: UIC2 Fab
Macromolecule | Name: UIC2 Fab / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Oligomeric state: Monomer / Recombinant expression: Yes |
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Source (natural) | Organism: Mus musculus (house mouse) / synonym: mouse / Tissue: Spleen / Cell: B cells |
Molecular weight | Theoretical: 50 KDa |
Recombinant expression | Organism: Homo sapiens (human) / Recombinant cell: hybridoma |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 3 mg/mL |
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Buffer | pH: 7.5 Details: 10 mM Tris-HCl pH 7.5, 150 mM NaCl, 0.09% n-Dodecyl Betta-D-maltoside |
Grid | Details: 200 mesh Cu R1.2/1.3 holey carbon grids from Quantifoil, plasma-cleaned |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 83 K / Instrument: LEICA EM GP |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Cs | 0 |
Date | Jul 10, 2015 |
Image recording | Category: CCD / Film or detector model: FEI FALCON II (4k x 4k) / Number real images: 1106 / Average electron dose: 30 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: 2.5 µm / Nominal defocus min: 1.5 µm / Nominal magnification: 47000 / Cs: mm |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Details | The particles were selected using an automatic selection program. |
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CTF correction | Details: CTF parameters obtained from whole micrograph |
Final reconstruction | Applied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 21.0 Å / Resolution method: OTHER / Software - Name: EMAN2, Relion, 1.3 / Number images used: 6443 |
Final two d classification | Number classes: 5 |
-Atomic model buiding 1
Initial model | PDB ID: |
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Software | Name: Chimera |
Refinement | Space: REAL / Protocol: RIGID BODY FIT / Target criteria: Overlap |
-Atomic model buiding 2
Initial model | PDB ID: |
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Software | Name: Chimera |
Refinement | Space: REAL / Protocol: RIGID BODY FIT / Target criteria: Overlap |
-Atomic model buiding 3
Initial model | PDB ID: |
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Software | Name: Chimera |
Refinement | Space: REAL / Protocol: RIGID BODY FIT / Target criteria: Overlap |
-Atomic model buiding 4
Initial model | PDB ID: |
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Software | Name: Chimera |
Refinement | Space: REAL / Protocol: RIGID BODY FIT / Target criteria: Overlap |