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.
Effects of the cis-acting mutations and the combination of compensatory insertion and deletion mutations in the L1, L2a, L2b, and L3 linkers on P1 promoter activity and repressibility. β-Galactosidase activity is expressed as a percentage with respect to the activity of the wild-type (W. T.) construct/strain grown on minimal medium. For further details, see the legend to Fig. 2.
