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Yorodumi- PDB-8y6i: P-glycoprotein in complex with UIC2 Fab and triple elacridar mole... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 8y6i | ||||||||||||
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| Title | P-glycoprotein in complex with UIC2 Fab and triple elacridar molecules in nanodisc | ||||||||||||
Components |
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Keywords | MEMBRANE PROTEIN / ABC transporter / elacridar / P-glycoprotein | ||||||||||||
| Function / homology | Function and homology informationhormone transport / phosphatidylethanolamine floppase activity / cellular response to nonylphenol / cellular response to borneol / response to codeine / cellular response to mycotoxin / daunorubicin transport / positive regulation of response to drug / terpenoid transport / ceramide floppase activity ...hormone transport / phosphatidylethanolamine floppase activity / cellular response to nonylphenol / cellular response to borneol / response to codeine / cellular response to mycotoxin / daunorubicin transport / positive regulation of response to drug / terpenoid transport / ceramide floppase activity / regulation of intestinal absorption / cellular response to external biotic stimulus / response to cyclosporin A / response to antineoplastic agent / positive regulation of establishment of Sertoli cell barrier / negative regulation of sensory perception of pain / carboxylic acid transmembrane transport / floppase activity / ceramide translocation / Abacavir transmembrane transport / response to quercetin / carboxylic acid transmembrane transporter activity / establishment of blood-retinal barrier / protein localization to bicellular tight junction / phosphatidylethanolamine flippase activity / phosphatidylcholine floppase activity / external side of apical plasma membrane / Atorvastatin ADME / xenobiotic transport across blood-brain barrier / response to thyroxine / establishment of blood-brain barrier / export across plasma membrane / xenobiotic detoxification by transmembrane export across the plasma membrane / P-type phospholipid transporter / transepithelial transport / cellular response to L-glutamate / ABC-type xenobiotic transporter / response to vitamin A / response to vitamin D / response to glucagon / intestinal absorption / response to glycoside / response to alcohol / Prednisone ADME / ABC-type xenobiotic transporter activity / phospholipid translocation / cellular hyperosmotic salinity response / cellular response to alkaloid / maintenance of blood-brain barrier / cellular response to antibiotic / ATPase-coupled transmembrane transporter activity / efflux transmembrane transporter activity / xenobiotic transmembrane transporter activity / cellular response to dexamethasone stimulus / transmembrane transporter activity / response to cadmium ion / transport across blood-brain barrier / lactation / response to progesterone / xenobiotic metabolic process / regulation of chloride transport / placenta development / bioluminescence / stem cell proliferation / cellular response to estradiol stimulus / brush border membrane / female pregnancy / circadian rhythm / ABC-family proteins mediated transport / transmembrane transport / G2/M transition of mitotic cell cycle / cellular response to tumor necrosis factor / cellular response to lipopolysaccharide / response to hypoxia / apical plasma membrane / response to xenobiotic stimulus / 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)![]() | ||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.54 Å | ||||||||||||
Authors | Hamaguchi-Suzuki, N. / Adachi, N. / Moriya, T. / Kawasaki, M. / Suzuki, K. / Anzai, N. / Senda, T. / Murata, T. | ||||||||||||
| Funding support | Japan, 3items
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Citation | Journal: Biochem Biophys Res Commun / Year: 2024Title: Cryo-EM structure of P-glycoprotein bound to triple elacridar inhibitor molecules. Authors: Norie Hamaguchi-Suzuki / Naruhiko Adachi / Toshio Moriya / Satoshi Yasuda / Masato Kawasaki / Kano Suzuki / Satoshi Ogasawara / Naohiko Anzai / Toshiya Senda / Takeshi Murata / ![]() Abstract: P-glycoprotein (P-gp) is an ATP-binding cassette transporter known for its roles in expelling xenobiotic compounds from cells and contributing to cellular drug resistance through multidrug efflux. ...P-glycoprotein (P-gp) is an ATP-binding cassette transporter known for its roles in expelling xenobiotic compounds from cells and contributing to cellular drug resistance through multidrug efflux. This mechanism is particularly problematic in cancer cells, where it diminishes the therapeutic efficacy of anticancer drugs. P-gp inhibitors, such as elacridar, have been developed to circumvent the decrease in drug efficacy due to P-gp efflux. An earlier study reported the cryo-EM structure of human P-gp-Fab (MRK-16) complex bound by two elacridar molecules, at a resolution of 3.6 Å. In this study, we have obtained a higher resolution (2.5 Å) structure of the P-gp- Fab (UIC2) complex bound by three elacridar molecules. This finding, which exposes a larger space for compound-binding sites than previously acknowledged, has significant implications for the development of more selective inhibitors and enhances our understanding of the compound recognition mechanism of P-gp. | ||||||||||||
| History |
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8y6i.cif.gz | 263.2 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8y6i.ent.gz | 166 KB | Display | PDB format |
| PDBx/mmJSON format | 8y6i.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/y6/8y6i ftp://data.pdbj.org/pub/pdb/validation_reports/y6/8y6i | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 38987MC ![]() 8y6hC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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| 1 |
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Components
-Protein , 1 types, 1 molecules A
| #1: Protein | Mass: 170535.812 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ABCB1, MDR1, PGY1, blFP-Y3 / Production host: Homo sapiens (human)References: UniProt: P08183, UniProt: A0A1S4NYF2, ABC-type xenobiotic transporter, P-type phospholipid transporter |
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-Antibody , 2 types, 2 molecules BC
| #2: Antibody | Mass: 24321.039 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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| #3: Antibody | Mass: 24381.281 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Non-polymers , 3 types, 16 molecules 




| #4: Chemical | ChemComp-CLR / #5: Chemical | ChemComp-3PE / | #6: Chemical | |
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-Details
| Has ligand of interest | Y |
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| Has protein modification | Y |
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: Multidrug resistance protein / Type: COMPLEX / Entity ID: #1-#3 / Source: RECOMBINANT |
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| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 7.5 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 |
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 291 K |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: TFS KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 20000 nm / Nominal defocus min: 800 nm / Cs: 2.7 mm |
| Image recording | Electron dose: 48.8 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 4482 |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 2.54 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 101021 / Symmetry type: POINT | ||||||||||||||||||||||||
| Atomic model building | Space: RECIPROCAL | ||||||||||||||||||||||||
| Atomic model building | PDB-ID: 6QEX Accession code: 6QEX / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||
| Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
| Displacement parameters | Biso mean: 118.7 Å2 | ||||||||||||||||||||||||
| Refine LS restraints |
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About Yorodumi



Homo sapiens (human)

Japan, 3items
Citation


PDBj













FIELD EMISSION GUN
