Specificity effects in the biosynthesis of fatty acids in Bacillus acidocaldarius |
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Authors: | Mario De Rosa,Agata Gambacorta,John D. Bu Lock |
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Affiliation: | Laboratorio per la Chimica e Fisica di Molecole di Interesse Biologico del C.N.R., Arco Felice, Napoli, Italia;Microbial Chemistry Laboratory, Department of Chemistry, University of Manchester, Manchester M13 9PL, England |
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Abstract: | Addition to Bacillus acidocaldarius of acids which can act as primers for fatty acid synthesis promote the synthesis of corresponding fatty acids competitively. The effective acids are n?C5 to -?7 (not C4 or C8), iso- and anteiso-C, and ?C, (not C4), and a range of cyclic acids from cyclobutylacetic and cyclopentanecarboxylic to cycloheptylacetic. New non-natural ω-cyclobutyl-, ω-cyclopentyl-, and ω-cycloheptyl-fatty acids are obtainable. The range of acceptable primers and the range of fatty acids produced therefrom indicate, respectively, the substrate specificities of the transacylase which introduces acyl species into fatty acids synthesis and the one which removes them. The specificity of the primer transacylase may be similar to that in some rumen anaerobes. |
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Keywords: | Bacteria fatty acids ω-cyclohexyl fatty acids new fatty acid types biosynthesis. |
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