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In the present study, the antimicrobial peptides BF2-A and BF2-C, two analogues of Buforin 2, were chemically synthesized and the activities were assayed. To elucidate the bactericidal mechanism of BF2-A/C and their different antimicrobial activities, the influence of peptides to E. coli cell membrane and targets of intracellular action were researched. Obviously, BF2-A and BF2-C did not induce the...
Tautomycetin is a specific protein phosphatase I inhibitor. In an effort to elucidate the biosynthetic mechanism of tautomycetin, we inactivated genes of the tautomycetin biosynthetic gene cluster, tauI, tauO, and tauK, which encode for putative P450 oxidase, citryl-CoA lyase, and esterase enzymes, respectively. The mutant STQ0606 (ΔtauO) did not produce any detectable amount of tautomycetin intermediates...
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