Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Minimalistic outlines of β-lactam hydrolysis mechanisms by SBLs (a) and MBLs (b). B1 is a general base activating the nucleophilic Ser residue in SBLs, and B2 is a general base involved in the deacylation step of SBL-mediated hydrolysis. The specific residues involved in the mechanism are discussed in the text.
