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.
Promoter activity of (A) vp1668 and (B) exsA in different strains and conditions. Bacteria were grown in LB-S, DMEM or contact with HeLa cells for 4 h and levels of β-galactosidase activity were measured (y-axis). The values represent the means ± SD of three replicates. Asterisks represent statistical difference (P < 0.05).
