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Several general and gene- and cell-selective transcription factors are required for specific transcription to occur. Many of them exert their functions through specific contacts either in the promoter region or at distant sequences regulating the initiation. These contacts may be altered by anticancer drugs which form non-covalent complexes with DNA. Covalent modifications of DNA by alkylating agents...
The mode of action of many anticancer drugs involves DNA interactions. We here examine the ability of actinomycin D to alter the specific binding of transcription factors Sp1 and NFκB to their DNA sequences. Employing an electrophoretic mobility shift assay, it is shown that actinomycin D inhibits complex formation between nuclear proteins present in the extracts from stimulated human umbilical vein...
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