Form
Powder
Appearance
Yellowcrystallinepowder
Source
PenicilliumSpp.
MeltingPoint
197-202°C
Penicillinisamemberoftheβ-lactamantibioticsandwasoneofthefirstdiscoveredantibiotics.
PenicillinVpotassiumissparinglysolubleinaqueoussolutionat1mg/mL. Clickhere formoreformsofpenicillin.
132-98-9
C16H17N2O5SK
388.48
β-lactamsinterferewithPBP(penicillinbindingprotein)activityinvolvedinthefinalphaseofpeptidoglycansynthesis.PBP’sareenzymeswhichcatalyzeapentaglycinecrosslinkbetweenalanineandlysineresiduesprovidingadditionalstrengthtothecellwall.Withoutapentaglycinecrosslink,theintegrityofthecellwallisseverelycompromisedandultimatelyleadstocelllysisanddeath.Resistancetoβ-lactamsiscommonlyduetocellscontainingplasmidencodedβ-lactamases.
2-8°C
2941.10.2000
PenicillinistargetsprimarilygrampositivebacteriaincludingStaphylococcusandStreptococcusspecies.
Powder
Yellowcrystallinepowder
PenicilliumSpp.
197-202°C