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.
Topoisomerase I (Top1) expression in 30 colorectal cancer (CRC) cell lines: Individual CRC cells grown to 80% confluence were lysed and subjected to western blot analysis to determine the expression of Top1 protein. Two Top1 antibodies were used in this analysis. One is purchased from TopoGen (TG2012-4, Lot 12FB04) and the other is purchased from BD Biosciences (X-21, RUO). Both actin and GAPDH are internal controls for total protein loading evaluation.
