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.
Expression of the genes for Lysobacter sp. strain XL1 lytic endopeptidases AlpA and AlpB in E. coli. A lytic-activity test is shown. Cells of E. coli BL21(DE3) transformed with vector pET-29a (sector 3) or with plasmid pALPI-29a (sector 2) or pALPII-29 (sector 1) bearing the alpA or alpB gene, respectively, were grown on an agarized medium containing cell walls of S. aureus 209-P (see Materials and Methods). Lytic activity is seen as clarification zones around colonies.
