K. Miyashita et S. Mobashery, MECHANISTIC SUPPORT FOR THE STEPWISE PROCESS FOR INACTIVATION OF CLASS-A BETA-LACTAMASES BY CLAVULANATE, Bioorganic & medicinal chemistry letters, 5(10), 1995, pp. 1043-1048
We proposed recently a stepwise process for the inactivation chemistry
of class A beta-lactamases by clavulanate (J. Am. Chem. Sec. 1993, 11
5, 4435). A requisite protonation by an active-site water molecule was
suggested to be a critical chemical step in enzyme inactivation. The
details of this proposed stepwise mechanism have been explored further
by three synthetic analogues of clavulanate.