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.
Inactivation of the Lrp binding sites 1 and 2 within the fim switch. Data are shown from an electrophoretic mobility shift assay monitoring interaction of purified Lrp protein with the wild-type fim switch and mutants deficient in site 1, site 2, or sites 1 and 2. The protein concentrations used are given at the top of each lane. Lrp-fimS complexes are labeled at the right: complexes C1 and C2 and higher-order complexes (H.C.).
