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.
Alignment of the tra904, tra981, and tra983 target sites with the wild-type ltrB target site region. Shaded bases have been previously shown to predominate (>50% presence) among a range of successful Ll.ltrB targets generated in E. coli (36).
