and d-alanyl-d-alanine ligase (DDL), which are necessary for the biosynthesis of the
bacterial cell wall. In this study, we cloned both genes encoding ALR and DDL, designated
alrS and ddlS, respectively, from DCS-producing Streptomyces lavendulae ATCC25233.
Each gene product was purified to homogeneity and characterized. Escherichia coli,
transformed with a pET vector carrying alrS or ddlS, displays higher resistance to DCS than …