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penicillinase
(redirected from penicillinases)

    Also found in: Dictionary/thesaurus, Encyclopedia 0.01 sec.
penicillinase /pen·i·cil·lin·ase/ (pen″ĭ-sil´ĭ-nās) a β-lactamase preferentially cleaving penicillin.
pen·i·cil·li·nase (pn-sl-ns)
n.
See beta-lactamase.
penicillinase
[pen′əsil′ənās]
an enzyme elaborated by certain bacteria, including many strains of staphylococci, that inactivates penicillin and thereby promotes resistance to the antibiotic. A purified preparation of penicillinase, derived from cultures of saprophytic spore-forming Bacillus cereus, is used in the treatment of adverse reactions to penicillin. Also called beta-lactamase.
penicillinase [pen″ĭ-sil´ĭ-nās]
an enzyme produced by certain bacteria that inactivates penicillin, so that such bacteria have increased resistance to the antibiotic; a purified form from Bacillus cereus is used in treatment of reactions to penicillin.
penicillinase
an enzyme produced by bacteria that inactivates penicillin, thus increasing resistance to the antibiotic; a purified form from Bacillus cereus is used in the treatment of reactions to penicillin.
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Ertapenem is stable against hydrolysis by a variety of beta-lactamases, including penicillinases, and cephalosporinases and extended spectrum beta-lactamases.
REPEAT/FDA Approves New Indication for INVANZ(R) (ertapenem) for the ... by Business Wire
Postulated resistance mechanisms include overproduction of conventional penicillinases, production of an inducible, plasmid-mediated, membrane-bound methicillinase, and in some cases, point mutations of penicillin-binding-proteins (4).
Community case of methicillin-resistant Staphylococcus aureus ... by Nelson, Lee; Cockram, Clive S.; Lui, Grace; Lam, Rebecca; Lam, Edman; Lai, Raymond; Ip, Margaret / Emerging Infectious Diseases
Ertapenem is stable against hydrolysis by a variety of beta-lactamases, including penicillinases, and cephalosporinases and extended spectrum beta-lactamases.
FDA Approves New Indication for INVANZ(R) (ertapenem) for the ... by Business Wire
 
 
 
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