Research Topics
| Zuben E SaunaSummaryAffiliation: Food and Drug Administration Country: USA Publications
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Detail Information
Publications
Understanding the contribution of synonymous mutations to human diseaseZuben E Sauna
Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, 29 Lincoln Drive, Bethesda, Maryland 20892, USA
Nat Rev Genet 12:683-91. 2011..Here we review current understanding of the extent to which synonymous mutations influence disease, the various molecular mechanisms that underlie these effects and the implications for future research and biomedical applications...
Characterization of conformation-sensitive antibodies to ADAMTS13, the von Willebrand cleavage proteaseZuben E Sauna
Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America
PLoS ONE 4:e6506. 2009..Conformation sensitive antibodies have been used to monitor protein conformation and to decipher the molecular mechanism of proteins as well as to distinguish functional and non-functional mutants...
Detection of intracellular ADAMTS13, a secreted zinc-metalloprotease, via flow cytometryS Geetha
Division of Hematology, Laboratory of Hemostasis, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland 20892, USA
Cytometry A 75:675-81. 2009..Flow cytometry is a convenient, efficient, and cost-effective way to measure the expression levels of ADAMTS13...
Genomics and the mechanism of P-glycoprotein (ABCB1)Zuben E Sauna
Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, DHHS, Building 37, 37 Convent Drive, Bethesda, MD 20892 4256, USA
J Bioenerg Biomembr 39:481-7. 2007..Our results suggest that the power-stroke is provided only after formation of the pre-hydrolysis transition-like (E.S) state during ATP hydrolysis...
Inhibition of multidrug resistance-linked P-glycoprotein (ABCB1) function by 5'-fluorosulfonylbenzoyl 5'-adenosine: evidence for an ATP analogue that interacts with both drug-substrate-and nucleotide-binding sitesShinobu Ohnuma
Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892 4256, USA
Biochemistry 50:3724-35. 2011..Thus, FSBA is an ATP analogue that interacts with both the drug-binding and ATP-binding sites of P-gp, but fluorosulfonyl-mediated cross-linking is observed only at the NBDs...
Aptamers as a sensitive tool to detect subtle modifications in therapeutic proteinsRan Zichel
Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America
PLoS ONE 7:e31948. 2012..The technique can provide an early warning of structural changes during the manufacturing process that could have consequential outcomes downstream...
Mutations define cross-talk between the N-terminal nucleotide-binding domain and transmembrane helix-2 of the yeast multidrug transporter Pdr5: possible conservation of a signaling interface for coupling ATP hydrolysis to drug transportZuben E Sauna
Laboratory of Cell Biology, Center for Cancer Research, NCI, National Institutes of Health, Bethesda, Maryland 20892 4256, USA
J Biol Chem 283:35010-22. 2008....
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 ATPZuben E Sauna
Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892 4256, USA
Biochemistry 46:13787-99. 2007....
Silent polymorphisms speak: how they affect pharmacogenomics and the treatment of cancerZuben E Sauna
Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, NIH and Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland 20892, USA
Cancer Res 67:9609-12. 2007..We discuss the importance of polymorphisms in drug metabolizing enzymes and transporters in anticancer therapy and suggest that synonymous polymorphisms may play a more significant role than is currently assumed...
Characterization of coding synonymous and non-synonymous variants in ADAMTS13 using ex vivo and in silico approachesNathan C Edwards
Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America
PLoS ONE 7:e38864. 2012....
Silent (synonymous) SNPs: should we care about them?Ryan Hunt
Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, USA
Methods Mol Biol 578:23-39. 2009..These changes can have a significant effect on the function of proteins, change cellular response to therapeutic targets, and often explain the different responses of individual patients to a certain medication...
Plasma derivatives: new products and new approachesZuben E Sauna
Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, MD 20892, USA
Biologicals 40:191-5. 2012..Finally, novel technologies and potential products are emerging that utilize synthetic molecules in lieu of replacement proteins obviating the limitations associated with replacement therapies...
About a switch: how P-glycoprotein (ABCB1) harnesses the energy of ATP binding and hydrolysis to do mechanical workZuben E Sauna
Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, NIH, Building 37, Room 2120, 37 Convent Drive, Bethesda, MD 20892 4256, USA
Mol Cancer Ther 6:13-23. 2007..Based on the mutational and biochemical work on Pgp and structural studies with isolated NBDs, we review proposed schemes for the catalytic cycle of ATP hydrolysis and the transport pathway...
A "silent" polymorphism in the MDR1 gene changes substrate specificityChava Kimchi-Sarfaty
Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA
Science 315:525-8. 2007....
The A-loop, a novel conserved aromatic acid subdomain upstream of the Walker A motif in ABC transporters, is critical for ATP bindingSuresh V Ambudkar
Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, DHHS, Bethesda, MD 20892 4256, USA
FEBS Lett 580:1049-55. 2006....
Multidrug resistance protein 4 (ABCC4)-mediated ATP hydrolysis: effect of transport substrates and characterization of the post-hydrolysis transition stateZuben E Sauna
Laboratory of Cell Biology, Center for Cancer Research, NCI, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland 20892 4256, USA
J Biol Chem 279:48855-64. 2004....
The conserved tyrosine residues 401 and 1044 in ATP sites of human P-glycoprotein are critical for ATP binding and hydrolysis: evidence for a conserved subdomain, the A-loop in the ATP-binding cassetteIn-Wha Kim
Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
Biochemistry 45:7605-16. 2006..We named this subdomain the "A-loop" (aromatic residue interacting with the adenine ring of ATP)...
Mutational analysis of ABCG2: role of the GXXXG motifOrsolya Polgar
Cancer Therapeutics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 9000 Rockville Pike, Bethesda, Maryland 20892, USA
Biochemistry 43:9448-56. 2004..These studies support a hypothesis that the GXXXG motif promotes proper packing of the transmembrane segments in the functional ABCG2 homodimer, although it does not solely arbitrate dimerization...
Biochemical basis of polyvalency as a strategy for enhancing the efficacy of P-glycoprotein (ABCB1) modulators: stipiamide homodimers separated with defined-length spacers reverse drug efflux with greater efficacyZuben E Sauna
Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892-4254, USA
Biochemistry 43:2262-71. 2004..These results suggest that polyvalency could be a useful strategy for the development of more potent Pgp modulators...
The molecular basis of the action of disulfiram as a modulator of the multidrug resistance-linked ATP binding cassette transporters MDR1 (ABCB1) and MRP1 (ABCC1)Zuben E Sauna
Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-4254, USA
Mol Pharmacol 65:675-84. 2004....
Importance of the conserved Walker B glutamate residues, 556 and 1201, for the completion of the catalytic cycle of ATP hydrolysis by human P-glycoprotein (ABCB1)Zuben E Sauna
Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892 4254, USA
Biochemistry 41:13989-4000. 2002....
