Penicillin G is a narrow spectrum antibiotic derived from Streptococcus pneumoniae. It is the drug of choice for groups A, B, C and G streptococci, nonenterococcal group D streptococci, viridians group streptococci, and non-penicillinase producing staphylococcus. The potassium salt has been used to study murosomes of staphylococci† and the penicillin-induced lysis of Streptococcus mutans†.
Biochem/physiol Actions
Mode of Action: Penicillin G acts by inhibiting cell wall synthesis through binding to penicillin binding proteins (PBPs), inhibiting peptidoglycan chain cross-linking.
Antimicrobial spectrum: This product is active against gram-positive and gram-negative bacteria.
Packaging
1mu,10mu,100mu
Caution
Solutions should be filter sterilized and stored at 2-8°C for 1 week or at -20°C for more lengthy periods. Solutions are stable at 37°C for 3 days.
Other Notes
Keep container tightly closed in a dry and well-ventilated place. Handle and store under inert gas. Keep in a dry place.Very soluble in water, slightly soluble in ethanol (96%), practically insoluble in methylene chloride
Infection and immunity, 46(2), 442-447 (1984-11-01)
Treatment of Streptococcus mutans GS-5 cells with concentrations of penicillin G within a relatively narrow range resulted in substantial lysis. This penicillin-induced lysis was dependent upon cell density and pH of the lysis medium. Other oral streptococci (Streptococcus sobrinus, Streptococcus
Journal of bacteriology, 174(7), 2241-2252 (1992-04-01)
Electron microscopic research into the murosomes of staphylococci has shown that the number of murosomes involved in penicillin-induced death varies depending on the experimental conditions employed. With 0.1 micrograms of penicillin G per ml, only 1 of a total of
Akusherstvo i ginekologiia, 51(6), 10-21 (2013-02-09)
The results achieved with 80% reduction in the incidence of early-onset neonatal group B streptococcal (GBS) sepsis following the implementation of the preliminary (1996, 2002) and subsequently the revised (2010) guidelines for intrapartum antibiotic prophylaxis imposed the discussion on a
The effects of bacterial biofilms (BFs) on larval settlement and metamorphosis of the mussel, Mytilus coruscus, were investigated in the laboratory. Of nine different isolates, Shewanella sp.1 BF induced the highest percentage of larval settlement and metamorphosis, whereas seven other
Journal of the Medical Association of Thailand = Chotmaihet thangphaet, 95(12), 1606-1612 (2013-02-09)
A case of 6-week-old male infant with meningitis and concurrent bacteremia caused by Streptococcus gallolyticus subspecies pasteurianus (Streptococcus bovis biotype 11.2) is presented. The isolates were susceptible to all beta-lactam antibiotics. Nevertheless, delayed defervescence and lack of satisfactory clinical improvement
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