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Full-Text Articles in Biochemistry, Biophysics, and Structural Biology

Development Of A Genetic Modification System In Clostridium Scatologenes Atcc 25775 For Generation Of Mutants, Prasanna Tamarapu Parthasarathy Dec 2010

Development Of A Genetic Modification System In Clostridium Scatologenes Atcc 25775 For Generation Of Mutants, Prasanna Tamarapu Parthasarathy

Masters Theses & Specialist Projects

3-Methyl indole (3-MI) is a malodorant in food and animal waste and Clostridium scatologenes ATCC 25775 is the model organism for the study of 3-MI production. 3-MI is an anaerobic degradation product of L-tryptophan and can cause pulmonary disorders and death in cattle and goats. To elucidate the 3-MI biosynthesis pathway and the underlying genes, it is necessary to develop a system to allow genetic modification in Clostridium scatologenes ATCC 25775. Bacteriophages and transposons are useful tools to achieve this goal. Isolation of Clostridium scatologenes ATCC 25775 bacteriophage was attempted by prophage induction and enrichments using environmental sources. To induce ...


Synthesis, Kinetic And Photocatalytic Studies Of Porphyrin-Ruthenium-Oxo Complexes, Yan Huang Aug 2010

Synthesis, Kinetic And Photocatalytic Studies Of Porphyrin-Ruthenium-Oxo Complexes, Yan Huang

Masters Theses & Specialist Projects

Macrocyclic ligand-complexed transition metal-oxo intermediates are the active oxidizing species in a variety of important biological and catalytic oxidation reactions. Many transition metal catalysts have been designed to mimic the predominant oxidation catalysts in Nature, namely the cytochrome P450 enzymes. Ruthenium porphyrin complexes have been the center of the research and have successfully been utilized, as catalysts, in major oxidation reactions such as the hydroxylation of alkanes. This study focuses on kinetic and photocatalytic studies of oxidation reactions with wellcharacterized high-valent ruthenium-oxo porphyrin complexes.
The trans-dioxoruthenium(VI) porphyrins have been among the best characterized metal-oxo intermediates and their involvement ...