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.
Assays to distinguish three- and four-tRNAi-gene strains in mixed cultures. (A) Parent E. coli (left) and its Su15 derivative (right) containing pCATam1. The parent with all wild-type tRNAi genes producing no CAT from CATam1 mRNA is Cms. The Su15 derivative where metY carries mutant tRNAfMet initiating from CATam1 is Cmr. (B) The parent strain is Kans Cms, whereas the one where metY is deleted is Kanr (ΔmetY::kan) or Cmr (ΔmetY::cm).
