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.
Sigma factor mRNA levels after exposure to different diamide (A) or SDS (B) concentrations. Values are expressed as the ratio between the number of cDNA copies detected in samples obtained from the stressed cultures and the number of cDNA copies detected in samples obtained from unstressed bacteria. The values were normalized to the level of sigA cDNA, which represented the internal invariant control.
