Bottromycin A2 is an antibiotic originally isolated from Streptomyces.1 It blocks the binding of aminoacyl-tRNA to the A site of the 50S ribosome, inhibiting protein synthesis.2 Bottromycin A2 is active against clinical isolates of methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococci with MIC values of 1 and 0.5 µg/ml, respectively.
1.Nakamura, S., Yajima, T., Lin, Y., et al.Isolation and characterization of bottromycins A2, B2, C2J. Antibiot. (Tokyo)20(1)1-5(1967) 2.Gouda, H., Kobayashi, Y., Yamada, T., et al.Three-dimensional solution structure of bottromycin A2: A potent antibiotic active against methicillin-resistant Staphylococcus aureus and vancomycin-resistant EnterococciChem. Pharm. Bull. (Tokyo)60(2)169-171(2012)