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.
(A) assT gene organization in S. Typhi. The LeuO-dependent promoter (PLeuO), as well as the LeuO binding sites I and II (LBS), is shown. (B) DNA fragments fused to the cat reporter gene in the 3′ end. The right columns indicate the CAT specific activity obtained from each construction in S. Typhi IMSS-1 wild type with pFMTrc12 and in IMSS-1 STYhns99 in N-minimal medium at 12 h.
