Bacterial P450s and steroid transformations » książka
Bacterial P450s and steroid transformations
ISBN-13: 9783844330779 / Angielski / Miękka / 2011 / 156 str.
Four bacterial cytochrome P450 enzyme activities are described in terms of their potential biotechnological use for steroid transformations, by engineered 'Rhodococcus' strains, into commercially valuable compounds. Three selected rhodococcal P450s were characterized with microbiological, genetic, biochemical, spectroscopic and chromatographical methods. Two sterol C26- hydroxylases were demonstrated to be important for 3- hydroxysterol degradation. The role of the novel dextromethorphan N-demethylase in sterol metabolism was discussed. Furthermore, heterologous production of a mutated P450 enzyme, from 'Bacillus megaterium', was shown in an engineered 'Rhodococcus' strain. The activity of the mutated P450 was identified as 16 -hydroxylase of 4- androstene-3,17-dione, by H and C NMR. The detailed characterization of the cytochrome P450 enzymes, described in this book, provides insight into the catabolic repertoire of selected bacterial strains, necessary for engineering of steroid catabolic pathways in order to produce pharmaceuticals efficiently.
Four bacterial cytochrome P450 enzyme activities are described in terms of their potential biotechnological use for steroid transformations, by engineered Rhodococcus strains, into commercially valuable compounds. Three selected rhodococcal P450s were characterized with microbiological, genetic, biochemical, spectroscopic and chromatographical methods. Two sterol C26- hydroxylases were demonstrated to be important for 3- hydroxysterol degradation. The role of the novel dextromethorphan N-demethylase in sterol metabolism was discussed. Furthermore, heterologous production of a mutated P450 enzyme, from Bacillus megaterium, was shown in an engineered Rhodococcus strain. The activity of the mutated P450 was identified as 16β-hydroxylase of 4- androstene-3,17-dione, by ¹H and ¹³C NMR. The detailed characterization of the cytochrome P450 enzymes, described in this book, provides insight into the catabolic repertoire of selected bacterial strains, necessary for engineering of steroid catabolic pathways in order to produce pharmaceuticals efficiently.
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