Subcellular localization of TSLC-GFP in CTLL2 cells. Subcellular distribution of GFP-fused TSLC1 (TSLC-GFP) in CTLL2 cells. C/GFP (column A) and C/TSLC-GFP (column B and C) cells were observed under a laser scanning confocal microscope (model TSC4D; Leica Microsystems, Frankfurt, Germany), objective × 40/0.75 NA, with a filter set suitable for GFP detection and differential interference contrast (DIC). Bars represent 10 μm.