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.
Transcription inhibition and activation by AsiA and mutant AsiA proteins. The ability of AsiA and mutant AsiA proteins to inhibit or activate transcription by E. coli RNA polymerase are shown. (Top) Activation of transcription from the T7 bacteriophage early promoter A1. (Bottom) Inhibition of transcription from the T4 bacteriophage PrIIB2 middle promoter.
