Effect of antisense HMGI-C on IFN inducibility of endogenous Ly-6E gene in A20-2J cells. Wild-type cells and clones stably transfected with antisense plasmid DNA were analyzed by cell surface staining with Sca-1 antibody. Plain lines indicate control cells stained with secondary antibody (FITC-conjugated rabbit anti-rat Ig) only; bold lines indicate cells stained with Sca-1 before secondary antibody.