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. 2023 Mar 27;145(13):7166–7180. doi: 10.1021/jacs.2c12123

Table 1. KPC-2 Steady-State Kineticsa.

antibiotic class kcat (s–1) KM (μM) kcat/KM (μM–1 s–1) Ki (μM) ref
ampicillin penicillin 82 (3.9) 270 (45) 0.30 (0.052)   this work
cefalothin cephalosporin 110 (2.8) 42 (3.4) 2.7 (0.23)   this work
cefotaxime cephalosporin 76 (6.6) 200 (29) 0.38 (0.064)   (13)
ceftazidime cephalosporin 1.9 (0.12) 530 (69) 0.0035 (5.2 x 10–4)   (13)
faropenem penem 3.71 (0.21) 16.6 (3.84) 0.22 (0.053) 44.1 (25.0) (56)
imipenem carbapenem 22 (0.43) 72 (3.2) 0.31 (0.015)   this work
meropenem carbapenem 21 (0.12) 7.1 (1.0) 3.00 (0.42) 500 (140) this work
ertapenem carbapenem 8.0 (0.26) 8.6 (0.90) 0.92 (0.10) 710 (100) this work
a

Standard errors are in parentheses.