When photolyzed in situ for as little as 15 s 2-azido-9-fluorenone oxime causes Type II and Type III transformation in C3H 10T 1/2 CL8 cells. In the yeast strain Saccharomyces cerevisiae D-7, simple reversions and gene conversions occurred and also mitotic crossing over, to a lesser extent, but no mitochondril "petite" mutants occurred. No mutations or transformations were induced in the dark or by the light itself.
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Mutations were induced by photolabeling 2-azido-9-fluorenone oxime in Salmonella typhimurium tester strain TA1538. Since the critical adducts were formed directly by the photogenerated nitrene, metabolic activation was bypassed. The bacteria themselves possessed the deep rough cell wall and uvrB- mutations, thereby minimizing comutagenic effects resulting from transport or DNA repair.
View Article and Find Full Text PDFWhen photolyzed in situ for as little as 15 s 2-azido-9-fluorenone oxime causes Type II and Type III transformation in C3H 10T 1/2 CL8 cells. In the yeast strain Saccharomyces cerevisiae D-7, simple reversions and gene conversions occurred and also mitotic crossing over, to a lesser extent, but no mitochondril "petite" mutants occurred. No mutations or transformations were induced in the dark or by the light itself.
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