Nature of Butyrate Oxidation by Mycoplasma hominis
AUTOR(ES)
VanDemark, P. J.
RESUMO
VanDemark, P. J. (Cornell University, Ithaca, N.Y.), and P. F. Smith. Nature of butyrate oxidation by Mycoplasma hominis. J. Bacteriol. 89:373–377. 1965.—Cell-free extracts of butyrate - grown Mycoplasma hominis strain O7, though lacking thiokinase activity on butyric acid, were found to activate butyrate via an acetyl-butyric thiophorase. These extracts also contained an aceto-coenzyme A (CoA) kinase, a butyryl-CoA dehydrogenase, a crotonase, a reduced nicotinamide adenine dinucleotide-specific β-hydroxybutyryl-CoA dehydrogenase, and a thiolase. Thiolase activity was stimulated by the addition of magnesium ions. The presence of these enzyme activities in this Mycoplasma species supports the hypothesis that a fatty acid oxidation represents an energy source for the nonfermentative pleuropneumonia-like organisms.
ACESSO AO ARTIGO
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