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Expression of E. coli β-galactosidase and HSV1-TK in IGRP2 and W162 cells, respectively. (A) IGRP2 cells were infected with Ad2811 and stained with X-Gal at 48 hr postinfection, as described (6). (B) Immunofluorescence analysis of Ad3017-infected W162 with a rabbit serum raised against purified HSV1-TK.
