Biochem/physiol Actions
Mode of Action: Inhibits bacterial cell wall synthesis.Antimicrobial spectrum: Gram-positive bacteria
Penicillin G is active against gram-positive and gram-negative aerobic and anaerobic bacteria. Penicillin G inhibits cell wall synthesis by binding to penicillin binding proteins (PBPs) which inhibits peptidoglycan chain cross-lining. Penicillin G is stable against hydrolysis by β-lactamases, such as penicillinases and cephalosporinases.
Application
Penicillin G is a narrow spectrum antibiotic. It is the drug of choice for Streptococcus pneumoniae, groups A, B, C and G streptococci, nonenterococcal group D streptococci, viridans group streptococci, and non-penicillinase producing staphylococcus. Penicillin G potassium salt is used to study murosomes of staphylococci1 and the penicillin-induced lysis of Streptococcus mutans2.
Protocols & Applications
Antibiotic Selector for application, solubility, solution stability, working concentration, and mode of action information