1 ased cephalosporinase activity and decreased penicillinase activity relative to the wild-type enzyme.

2 cephalosporinase activity versus maintaining penicillinase activity.

3 um beta-lactamase (ESBL) with high levels of penicillinase and cephalosporinase activity as well as m

4 spectrum phenotype, with very high levels of penicillinase and cephalosporinase activity, as well as

5 iculus cut followed by chondroitinase ABC or penicillinase as a control.

6 Michaelis constant of covalently immobilized penicillinase as well as relative transport coefficients

7 icients suggests a detachment of physisorbed penicillinase during the first two weeks since productio

8 ETs prepared by covalent immobilization of a penicillinase enzyme layer present a powerful tool for q

9 itative evaluation of covalently immobilized penicillinase layers on pH-sensitive field-effect transi

10                                              Penicillinase-modified AlGaN/GaN field-effect transistor

11 chABC or a bacterial-derived control enzyme [penicillinase (P-ase)] and then subsequently (1 week lat

12 the previously described widespread clone of penicillinase producers, a trait found in <0.1% of E. fa

13 s (E. faecalis strain V583), the first known penicillinase-producing (Bla(+)) E. faecalis isolate, an

14 thin one to two years of the introduction of penicillinase resistant ss-lactams (methicillin), methic

15 1960s, concurrent with the widespread use of penicillinase-resistant beta lactams.

16 nvestigate the covalently immobilized enzyme penicillinase under different experimental conditions.

17 usceptibility profiles to E. coli; bla1 is a penicillinase, while bla2 appears to be a cephalosporina