Mupirocin

Mupirocin is a naturally occurring antibiotic. It is an antibacterial agent produced by fermentation using the organism Pseudomonas fluorescens. It is active against a wide range of bacteria those responsible for the majority of skin infections, e.g. Staphylococcus aureus including methicillin-resistant Staphylococcus aureus (MRSA) other staphylococci and streptococci. It is also active against certain gram-negative pathogens, like Escherichia coli and Haemophilus influenzae. Mupirocin inhibits bacterial protein synthesis by reversibly and specially binding to bacterial isoleucyl transfer-RNA synthetase. Due to this unique mode of action, Mupirocin demonstrates no in vitro cross-resistance with other classes of antimicrobial agents. Mupirocin is bactericidal at concentrations achieved by topical administration. However, the minimum bactericidal concentration (MBC) against relevant pathogens is generally eight-fold to thirty-fold higher than the minimum inhibitory concentration (MIC).Mupirocin is a naturally occurring antibiotic. This antibacterial agent is produced by fermentation using the organism Pseudomonas fluorescens. It is active against a wide range of bacteria (e.g. Staphylococcus aureus including methicillin-resistant strains and Streptococcus pyogenes) those responsible for the majority of skin infections. It is also active against gram-negative pathogens, such as Escherichia coli and Haemophilus influenzae. Mupirocin inhibits bacterial protein synthesis by reversibly and specifically binding to bacterial isoleucyl transfer-RNA synthetase.