platencin

Platencin is a natural, broad spectrum Gram-positive antibiotic isolated from S. platensis, which is also the source of platensimycin . Platencin inhibits two key enzymes in bacterial fatty acid synthesis, β-ketoacyl-ACP synthases II and III (FabF and FabH, respectively), unlike platensimycin which only targets FabF. The IC50 values for platencin against FabF and FabH are 1.95 and 3.91 μg ml, respectively. It does not exhibit cross-resistance to antibiotic resistant bacterial strains, including methicillin-resistant S. aureus, vancomycin-intermediate S. aureus, and vancomycin-resistant Enterococci. For these reasons, platencin has potential applications in fighting antibiotic resistant bacteria.