Figure 7
From: Functional verification of the diphtheria toxin A gene in a recombinant system
Transfection of 293T cells with pEGFP-N1 and pEGFP-N1-DTA vectors for 24 h. A) High EGFP expression was seen for pEGFP-N1-transfected 293T cells. B) Lower EGFP expression levels was seen for pEGFP-N1-DTA-transfected cells at 24 h post-transfection; A1 and B1, images taken under white light; A2 and B2, images taken under UV light; A3 and B3, merged pictures. Magnification, 200×.