Fig. 4
From: Characterization of GQA as a novel β-lactamase inhibitor of CTX-M-15 and KPC-2 enzymes

Lineweaver–Burk plot showing the mechanism through which GQA hinders CTX-M-15 (A) and KPC-2 (B), via monitoring the hydrolysis of various nitrocefin concentrations using the test enzyme in the presence of 4 µg/mL of GQA