Physician

Emergency Medicine

Phyllis Bragg practices Emergency Medicine. She graduated from Eastern Virginia Medical School. Phyllis Bragg is a published doctor. She has 87 publications published. The most current publication "Effect of truncation and mutation of the carboxyl-terminal region of the beta subunit on membrane assembly and activity of the pyridine nucleotide transhydrogenase of ..."

Publications

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• Comparison of twitch depression of the adductor pollicis and the respiratory muscles. Pharmacodynamic modeling without plasma concentrations.
• Pharmacokinetics of rocuronium bromide (ORG 9426) in patients with normal renal function or patients undergoing cadaver renal transplantation.
• Edrophonium requirements for reversal of deep neuromuscular block following infusion of mivacurium.
• Opioid pharmacodynamics in neonatal dogs: differences between morphine and fentanyl.
• The role of efflux systems and the cell envelope in fluorescence changes of the lipophilic cation 2-(4-dimethylaminostyryl)-1-ethylpyridinium in Escherichia coli.
• Mechanism of uptake of the fluorescent dye 2-(4-dimethylaminostyryl)-1-ethylpyridinium cation (DMP+) by phospholipid vesicles.
• The effect of depletion of nucleotide and of delta and epsilon subunits on ATP synthesis in dimethyl sulfoxide by F1-ATPase of Escherichia coli.
• Site-directed mutagenesis of tyrosine residues at nicotinamide nucleotide binding sites of Escherichia coli transhydrogenase.
• Assembly of multimeric proteins. Effect of mutations in the alpha-subunit on membrane assembly and activity of pyridine nucleotide transhydrogenase.
• Identification of N,N'-dicyclohexylcarbodiimide-reactive glutamic and aspartic acid residues in Escherichia coli transhydrogenase and the exchange of these by site-spe...
• Prediction and site-specific mutagenesis of residues in transmembrane alpha-helices of proton-pumping nicotinamide nucleotide transhydrogenases from Escherichia coli a...
• Properties of a proton-translocating nicotinamide nucleotide transhydrogenase from Escherichia coli with alpha and beta subunits linked through fused transmembrane hel...
• Properties of bound inorganic phosphate on bovine mitochondrial F1F0-ATP synthase.
• Characterization of mutants of beta histidine91, beta aspartate213, and beta asparagine222, possible components of the energy transduction pathway of the proton-transl...
• Intersubunit crosslinking of the heterotetrameric proton-translocating pyridine nucleotide transhydrogenase of Escherichia coli defines intersubunit contacts between t...
• Phosphate exchange and ATP synthesis by DMSO-pretreated purified bovine mitochondrial ATP synthase.
• The presence of an aqueous cavity in the proton-pumping pathway of the pyridine nucleotide transhydrogenase of Escherichia coli is suggested by the reaction of the enz...
• Crosslinking between alpha and beta subunits defines the orientation and spatial relationship of some of the transmembrane helices of the proton-translocating pyridine...
• Effect of NBD chloride (4-chloro-7-nitrobenzo-2-oxa-1,3-diazole) on the pyridine nucleotide transhydrogenase of Escherichia coli.
• Mutation of conserved polar residues in the transmembrane domain of the proton-pumping pyridine nucleotide transhydrogenase of Escherichia coli.
• Effect of truncation and mutation of the carboxyl-terminal region of the beta subunit on membrane assembly and activity of the pyridine nucleotide transhydrogenase of ...
• Site-directed mutagenesis of the proton-pumping pyridine nucleotide transhydrogenase of Escherichia coli.
• Cross-linking and N-(1-pyrenyl)maleimide labeling of cysteine mutants of proton-pumping pyridine nucleotide transhydrogenase of Escherichia coli.
• Properties of a cysteine-free proton-pumping nicotinamide nucleotide transhydrogenase.
• Mutation of conserved residues in the NADP(H)-binding domain of the proton translocating pyridine nucleotide transhydrogenase of Escherichia coli.
• Mechanism of hydride transfer during the reduction of 3-acetylpyridine adenine dinucleotide by NADH catalyzed by the pyridine nucleotide transhydrogenase of Escherichi...
• The role of conserved histidine residues in the pyridine nucleotide transhydrogenase of Escherichia coli.
• The bound adenine nucleotides of purified bovine mitochondrial ATP synthase.
• Interaction of beef-heart mitochondrial F1-ATPase with immobilized ATP in the presence of dimethylsulfoxide.
• Changes in the adenine nucleotide and inorganic phosphate content of Escherichia coli F1-ATPase during ATP synthesis in dimethyl sulphoxide.
• Anomalous effect of uncouplers on respiratory chain-linked transhydrogenation in Escherichia coli membranes: evidence for a localized proton pathway?
• Involvement of histidine-91 of the beta subunit in proton translocation by the pyridine nucleotide transhydrogenase of Escherichia coli.
• Three-dimensional structure prediction of the NAD binding site of proton-pumping transhydrogenase from Escherichia coli.
• Organization in the membrane of the N-terminal proton-translocating domain of the beta subunit of the pyridine nucleotide transhydrogenase of Escherichia coli.
• Evidence for the presence of two pyridine nucleotide-binding sites on the beta subunit of the Escherichia coli pyridine nucleotide transhydrogenase.
• The mechanism of hydride transfer between NADH and 3-acetylpyridine adenine dinucleotide by the pyridine nucleotide transhydrogenase of Escherichia coli.
• A cross-linking study of the Ca2+, Mg2+-activated adenosine triphosphatase of Escherichia coli.
• Adenine nucleotide binding sites in normal and mutant adenosine triphosphatases of Escherichia coli.
• The DCCD-binding polypeptide alone is insufficient for proton translocation through F0 in membranes of Escherichia coli.
• Affinity labeling of purified Ca2+,Mg2+-activated ATPase of Escherichia coli by the 2',3'-dialdehydes of adenosine 5'-di- and triphosphates.
• Membrane cytochromes of Escherichia coli grown aerobically and anaerobically with nitrate.
• Cytochromes of the trimethylamine N-oxide anaerobic respiratory pathway of Escherichia coli.
• Membrane cytochromes of Escherichia coli chl mutants.
• The ATPase complex of Escherichia coli.
• Loss of protection by nucleotides against proteolysis and thiol modification in the isolated alpha-subunit from F1 ATPase of Escherichia coli mutant uncA401.
• Sulfhydryl groups of the F1 adenosine triphosphatase of Escherichia coli and the stoichiometry of the subunits.
• Interaction of Escherichia coli F1-ATPase with dicyclohexylcarbodiimide-binding polypeptide.
• The DCCD-binding polypeptide is close to the F1 ATPase-binding site on the cytoplasmic surface of the cell membrane of Escherichia coli.
• A difference in the affinity labeling of Ca2+, Mg2+-activated ATPases of normal and unc A strains of Escherichia coli by the 2',3'-dialdehyde derivative of adenosine 5...
• Purification and properties of reconstitutively active nicotinamide nucleotide transhydrogenase of Escherichia coli.
• Cloning and expression of the transhydrogenase gene of Escherichia coli.
• Electrophoretic determination of sulfhydryl groups and its application to complex protein samples, in vitro protein synthesis mixtures, and cross-linked proteins.
• Cytochrome pools in membranes of Escherichia coli grown aerobically on L-proline.
• Nucleotide sequence of the pntA and pntB genes encoding the pyridine nucleotide transhydrogenase of Escherichia coli.
• Uncoupler-induced relocation of elongation factor Tu to the outer membrane in an uncoupler-resistant mutant of Escherichia coli.
• The fluorescence intensity of the lipophilic probe N-phenyl-1-naphthylamine responds to the oxidation-reduction state of the respiratory chain in everted membrane vesi...
• The fluorescence intensity of the lipophilic probe N-phenyl-1-naphthylamine responds to the oxidation-reduction state of purified Escherichia coli cytochrome o incorpo...
• Subunit distribution of the sulfhydryl groups of the F1 adenosine triphosphatase of Salmonella typhimurium.
• Expression of the cloned subunits of Escherichia coli transhydrogenase from separate replicons.
• Electron spin resonance studies of lipid fluidity changes in membranes of an uncoupler-resistant mutant of Escherichia coli.
• Distinct phases of the fluorescence response of the lipophilic probe N-phenyl-1-naphthylamine in intact cells and membrane vesicles of Escherichia coli.
• Ligand-induced conformational changes in the Escherichia coli F1 adenosine triphosphatase probed by trypsin digestion.
• Conformational interactions between alpha and beta subunits in the F1 ATPase of Escherichia coli as shown by chemical modification of uncA401 and uncD412 mutant enzymes.
• Effect of disulfide cross-linking between alpha and delta subunits on the properties of the F1 adenosine triphosphatase of Escherichia coli.
• N,N'-dicyclohexylcarbodiimide and 4-chloro-7-nitrobenzofurazan bind to different beta subunits of the F1 ATPase of Escherichia coli.
• Isolation of a fourth cysteinyl-containing peptide of the alpha-subunit of the F1 ATPase from Escherichia coli necessitates revision of the DNA sequence.
• Chemical crosslinking of alpha subunits in the F1 adenosine triphosphatase of Escherichia coli.
• Thiol modification as a probe of conformational forms of the F1 ATPase of Escherichia coli and of the structural asymmetry of its beta subunits.
• Conformational change in beef-heart mitochondrial F1 ATPase to ATP synthesis mode induced by dimethylsulfoxide and ATP revealed by sulfhydryl group labeling.
• Reaction of 2-azido-ATP with beta subunits in the F1-adenosine triphosphatase of Escherichia coli.
• Crosslinking and radiation inactivation analysis of the subunit structure of the pyridine nucleotide transhydrogenase of Escherichia coli.
• Potentiometric and spectroscopic properties of the cytochrome o complex of Escherichia coli.
• pH probes respond to redox changes in cytochrome o.
• Interaction of ox heart mitochondrial F1-ATPase with immobilized ADP and ATP.
• Role of minor subunits in the structural asymmetry of the Escherichia coli F1-ATPase.
• Reaction of membrane-bound F1-adenosine triphosphatase of Escherichia coli with chemical ligands and the asymmetry of beta subunits.
• Topological analysis of the pyridine nucleotide transhydrogenase of Escherichia coli using proteolytic enzymes.
• Beef-heart mitochondrial F1-ATPase can use endogenous bound phosphate to synthesize ATP in dimethyl sulfoxide.
• The effect of dimethylsulfoxide on adenine nucleotide binding and ATP synthesis by beef-heart mitochondrial F1 ATPase.
• Mechanism of energization of uptake of the fluorescent dye 2-(4-dimethylaminostyryl)-1-ethylpyridinium cation [DMP+] into an acrA strain of Escherichia coli.
• Differential permeability for lipophilic compounds in uncoupler-resistant cells of Escherichia coli.
• Differential movement of ions in artificial phospholipid vesicles.
• A mutation at Gly314 of the beta subunit of the Escherichia coli pyridine nucleotide transhydrogenase abolishes activity and affects the NADP(H)-induced conformational...
• Subunit interactions involved in the assembly of pyridine nucleotide transhydrogenase in the membranes of Escherichia coli.
• Changes in the adenine nucleotide content of beef-heart mitochondrial F1 ATPase during ATP synthesis in dimethyl sulfoxide.
• Escherichia coli F1-ATPase can use GTP-nonchaseable bound adenine nucleotide to synthesize ATP in dimethyl sulfoxide.

Schools

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• Eastern Virginia Medical School Of The Medical College Of Hampton Roads

• Allegheny Genl Hospital

Doctors Specialties

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• Emergency Medicine

Accepted Insurances

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Education

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• Allegheny General Hospital - Western Pennsylvania Hospital
• Eastern Virginia Medical School

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