کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10137200 1645724 2018 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
DNA damaging agents trigger the expression of the HML silent mating type locus in Saccharomyces cerevisiae
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی تحقیقات سرطان
پیش نمایش صفحه اول مقاله
DNA damaging agents trigger the expression of the HML silent mating type locus in Saccharomyces cerevisiae
چکیده انگلیسی
Many DNA damaging agents also react with RNA and protein, and could thus cause epigenetic as well as genotoxic changes. To investigate which DNA damaging agents alter epigenetic states, we studied the chemical-induced changes in expression of the yeast silent mating type locus HMLα, which can be triggered by inhibiting yeast Sir2. We observed that the alkylating agent methyl methane sulfonate (MMS) can result in HMLα expression, using a colony sector assay that results from expression of a HML-positioned cre gene. Using single-cell imaging we also observed that alkylating agents, including MMS and methyl-3-nitro-1-nitrosoguanidine (MNNG), as well as short-wave UV, also decreased HML silencing. We suggest that chemical-induced alterations in heterochromatin structure could confer transient phenotypic changes that affect the cellular responses to DNA damaging agents.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mutation Research/Genetic Toxicology and Environmental Mutagenesis - Volume 835, November 2018, Pages 16-20
نویسندگان
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