Cysteines introduced into extracellular loops 1 and 4 of human P-glycoprotein that are close only in the open conformation spontaneously form a disulfide bond that inhibits drug efflux and ATPase activity.

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Cysteines introduced into extracellular loops 1 and 4 of human P-glycoprotein that are close only in the open conformation spontaneously form a disulfide bond that inhibits drug efflux and ATPase activity. is …
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scholarly articleQ13442814

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P356DOI10.1074/JBC.M114.583021
P932PMC publication ID4155644
P698PubMed publication ID25053414
P5875ResearchGate publication ID264164314

P50authorDavid M. ClarkeQ57542976
Tip W. LooQ43098486
P2093author name stringDavid M Clarke
Tip W Loo
P2860cites workCrystal structure of the multidrug transporter P-glycoprotein from Caenorhabditis elegansQ27673547
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Methanethiosulfonate derivatives of rhodamine and verapamil activate human P-glycoprotein at different sitesQ33193592
Interaction of LDS-751 and rhodamine 123 with P-glycoprotein: evidence for simultaneous binding of both drugsQ33225292
Efficient inhibition of P-glycoprotein-mediated multidrug resistance with a monoclonal antibodyQ33611565
Projection structure of P-glycoprotein by electron microscopy. Evidence for a closed conformation of the nucleotide binding domainsQ46808331
Identification of putative binding sites of P-glycoprotein based on its homology modelQ46823202
Catalytic cycle of ATP hydrolysis by P-glycoprotein: evidence for formation of the E.S reaction intermediate with ATP-gamma-S, a nonhydrolyzable analogue of ATP.Q46910980
The stabilities of various thiol compounds used in protein purificationsQ57479868
Stereochemical modeling of disulfide bridges. Criteria for introduction into proteins by site-directed mutagenesisQ69398900
A method for the determination of inorganic phosphate in the presence of labile organic phosphate and high concentrations of protein: application to lens ATPasesQ69825502
Role of the D-loops in allosteric control of ATP hydrolysis in an ABC transporterQ83521766
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Characterization of an asymmetric occluded state of P-glycoprotein with two bound nucleotides: implications for catalysisQ33748171
Multidrug-resistance gene (P-glycoprotein) is expressed by endothelial cells at blood-brain barrier sitesQ33832954
The drug transporter P-glycoprotein limits oral absorption and brain entry of HIV-1 protease inhibitorsQ34065800
Formation and transfer of disulphide bonds in living cellsQ34157680
Internal duplication and homology with bacterial transport proteins in the mdr1 (P-glycoprotein) gene from multidrug-resistant human cells.Q34559072
Expression of a full-length cDNA for the human "MDR1" gene confers resistance to colchicine, doxorubicin, and vinblastineQ34620070
P-glycoprotein retains drug-stimulated ATPase activity upon covalent linkage of the two nucleotide binding domains at their C-terminal endsQ34695826
Understanding polyspecificity of multidrug ABC transporters: closing in on the gaps in ABCB1Q35007411
Conformational analysis of human ATP-binding cassette transporter ABCB1 in lipid nanodiscs and inhibition by the antibodies MRK16 and UIC2.Q35604412
Structure of a multidrug transporterQ36083039
Rhodamine inhibitors of P-glycoprotein: an amide/thioamide "switch" for ATPase activityQ36103906
The ATPase activity of the P-glycoprotein drug pump is highly activated when the N-terminal and central regions of the nucleotide-binding domains are linked closely togetherQ36137412
Evidence for two nonidentical drug-interaction sites in the human P-glycoproteinQ36589430
P-glycoprotein function involves conformational transitions detectable by differential immunoreactivityQ36712329
On the origin of large flexibility of P-glycoprotein in the inward-facing stateQ36967408
Modulation of P-glycoprotein at the blood-brain barrier: opportunities to improve central nervous system pharmacotherapyQ37080236
ABC efflux pump-based resistance to chemotherapy drugs.Q37543408
Identification of the distance between the homologous halves of P-glycoprotein that triggers the high/low ATPase activity switch.Q37653308
Disulfide bonding in protein biophysicsQ37973761
Mechanism of the ABC transporter ATPase domains: catalytic models and the biochemical and biophysical recordQ38058157
Identification of residues in the drug translocation pathway of the human multidrug resistance P-glycoprotein by arginine mutagenesisQ39828462
Nucleotide binding, ATP hydrolysis, and mutation of the catalytic carboxylates of human P-glycoprotein cause distinct conformational changes in the transmembrane segmentsQ40106045
Rescue of DeltaF508 and other misprocessed CFTR mutants by a novel quinazoline compoundQ40367010
The dileucine motif at the COOH terminus of human multidrug resistance P-glycoprotein is important for folding but not activityQ40492449
Substrate-induced conformational changes in the transmembrane segments of human P-glycoprotein. Direct evidence for the substrate-induced fit mechanism for drug binding.Q40667534
Cross-linking of human multidrug resistance P-glycoprotein by the substrate, tris-(2-maleimidoethyl)amine, is altered by ATP hydrolysis. Evidence for rotation of a transmembrane helix.Q40795985
Drug-stimulated ATPase activity of human P-glycoprotein is blocked by disulfide cross-linking between the nucleotide-binding sites.Q40880583
Covalent modification of human P-glycoprotein mutants containing a single cysteine in either nucleotide-binding fold abolishes drug-stimulated ATPase activityQ41293154
Rapid purification of human P-glycoprotein mutants expressed transiently in HEK 293 cells by nickel-chelate chromatography and characterization of their drug-stimulated ATPase activities.Q41295094
P-glycoprotein. Associations between domains and between domains and molecular chaperonesQ41295494
P-glycoprotein Is Stably Inhibited by Vanadate-induced Trapping of Nucleotide at a Single Catalytic SiteQ41310191
Membrane topology of a cysteine-less mutant of human P-glycoproteinQ41380800
Locking intracellular helices 2 and 3 together inactivates human P-glycoprotein.Q41848364
Processing mutations disrupt interactions between the nucleotide binding and transmembrane domains of P-glycoprotein and the cystic fibrosis transmembrane conductance regulator (CFTR).Q41993227
Drug rescue distinguishes between different structural models of human P-glycoproteinQ42681206
Relation between the turnover number for vinblastine transport and for vinblastine-stimulated ATP hydrolysis by human P-glycoproteinQ42797493
Human P-glycoprotein is active when the two halves are clamped together in the closed conformationQ43098331
Monoclonal antibody MRK16 reverses the multidrug resistance of multidrug-resistant transgenic miceQ43843005
Corrector VX-809 stabilizes the first transmembrane domain of CFTR.Q44348057
Simultaneous binding of two different drugs in the binding pocket of the human multidrug resistance P-glycoproteinQ44543802
Properties of P-glycoprotein with mutations in the "catalytic carboxylate" glutamate residuesQ45028072
Nucleotide-induced structural changes in P-glycoprotein observed by electron microscopy.Q46416788
Nucleotide binding to the multidrug resistance P-glycoprotein as studied by ESR spectroscopyQ46756646
P433issue36
P407language of work or nameEnglishQ1860
P304page(s)24749-24758
P577publication date2014-07-22
P1433published inJournal of Biological ChemistryQ867727
P1476titleCysteines introduced into extracellular loops 1 and 4 of human P-glycoprotein that are close only in the open conformation spontaneously form a disulfide bond that inhibits drug efflux and ATPase activity
P478volume289

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cites work (P2860)
Q36778842Identification of an Extracellular Gate for the Proton-coupled Folate Transporter (PCFT-SLC46A1) by Cysteine Cross-linking
Q43099273Mapping the Binding Site of the Inhibitor Tariquidar That Stabilizes the First Transmembrane Domain of P-glycoprotein.
Q93032460Reversal effect of FW-04-806, a macrolide dilactone compound, on multidrug resistance mediated by ABCB1 and ABCG2 in vitro and in vivo
Q36984552Thiol-Disulfide Exchange Reactions in the Mammalian Extracellular Environment

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