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.
Determination of lentiviral titers. Recombinant lentivirus was transfected into 293T cells to determine viral titer by the method of end-point dilution, which involves counting the numbers of infected green cells under fluorescence microscopy (original magnification x 100). The viral dilution factor was 1:1000.
