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Articles 1 - 5 of 5
Full-Text Articles in Biochemistry, Biophysics, and Structural Biology
Characterizing The Promiscuity Of Ligab, A Lignin Catabolite Degrading Extradiol Dioxygenase From Sphingomonas Paucimobilis Syk-6, Kevin P. Barry, Erika A. Taylor
Characterizing The Promiscuity Of Ligab, A Lignin Catabolite Degrading Extradiol Dioxygenase From Sphingomonas Paucimobilis Syk-6, Kevin P. Barry, Erika A. Taylor
Erika A. Taylor, Ph.D.
LigAB from Sphingomonas paucimobilis SYK-6 is the only structurally characterized dioxygenase of the largely uncharacterized superfamily of Type II extradiol dioxygenases (EDO). This enzyme catalyzes the oxidative ring-opening of protocatechuate (3,4-dihydroxybenzoic acid or PCA) in a pathway allowing the degradation of lignin derived aromatic compounds (LDACs). LigAB has also been shown to utilize two other LDACs from the same metabolic pathway as substrates, gallate, and 3-O-methyl gallate; however, kcat/KM had not been reported for any of these compounds. In order to assess the catalytic efficiency and get insights into the observed promiscuity of this enzyme, steady-state kinetic analyses were performed …
Comparative Metabolism Of Phenanthro[3,4-B]Thiophene And Benzo[C]Phenanthrene, Jaquan M. Williams
Comparative Metabolism Of Phenanthro[3,4-B]Thiophene And Benzo[C]Phenanthrene, Jaquan M. Williams
Jaquan M Williams
ABSTRACT OF THESIS Comparative Metabolism of Phenanthro[3,4-b]Thiophene And Benzo[c]Phenanthrene Polycyclic aromatic hydrocarbons (PAHs) and their sulfur-heterocyclic analogs (thia-PAHs) are commonly occurring persistent environmental contaminants formed by incomplete combustion of organic matter. A number of thia-PAHs have shown significant mutagenic and carcinogenic activities. As noted with PAHs, these chemical contaminants also require metabolic activation in order to exhibit their mutagenic and carcinogenic effects. In the present study, a comparison of the metabolism of highly mutagenic phenanthro[3,4-b]thiophene (P[3,4-b]T) and its weakly mutagenic carbon analogue, benzo[c]phenanthrene (B[c]P), was investigated. Metabolism studies were conducted using liver microsomes from induced rats, un-induced rats, as well …
Dna Damage Repair Genes Controlling Human Papillomavirus (Hpv) Episome Levels Under Conditions Of Stability And Extreme Instability, Terri G. Edwards, Thomas J. Vidmar, Kevin Koeller, James K. Bashkin, Chris Fisher
Dna Damage Repair Genes Controlling Human Papillomavirus (Hpv) Episome Levels Under Conditions Of Stability And Extreme Instability, Terri G. Edwards, Thomas J. Vidmar, Kevin Koeller, James K. Bashkin, Chris Fisher
James Bashkin
Psychosine, The Cytotoxic Sphingolipid That Accumulates In Globoid Cell Leukodystrophy, Alters Membrane Architecture, Jacqueline A. Hawkins-Salsbury, Archana R. Parameswar, Xuntian Jiang, Paul H. Schlesinger, Ernesto Bongarzone, Daniel S. Ory, Alexei V. Demchenko, Mark S. Sands
Psychosine, The Cytotoxic Sphingolipid That Accumulates In Globoid Cell Leukodystrophy, Alters Membrane Architecture, Jacqueline A. Hawkins-Salsbury, Archana R. Parameswar, Xuntian Jiang, Paul H. Schlesinger, Ernesto Bongarzone, Daniel S. Ory, Alexei V. Demchenko, Mark S. Sands
Alexei Demchenko
Inhibition Of Bacillus Cereus Growth By Bacteriocin Producing Bacillus Subtilis Isolated From Fermented Baobab Seeds (Maari) Is Substrate Dependent, Donatien Kaboré, Dennis S. Nielsen, Hagrétoui Sawadogo-Lingan, Bréhima Diawara, Mamoudou H. Dicko Prof., Mogens Jakobsen, Line Thorsen
Inhibition Of Bacillus Cereus Growth By Bacteriocin Producing Bacillus Subtilis Isolated From Fermented Baobab Seeds (Maari) Is Substrate Dependent, Donatien Kaboré, Dennis S. Nielsen, Hagrétoui Sawadogo-Lingan, Bréhima Diawara, Mamoudou H. Dicko Prof., Mogens Jakobsen, Line Thorsen
Pr. Mamoudou H. DICKO, PhD