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Τρίτη 27 Νοεμβρίου 2018

Histone tails decrease N7-methyl-2'-deoxyguanosine depurination and yield DNA-protein cross-links in nucleosome core particles and cells [Chemistry]

Monofunctional alkylating agents preferentially react at the N7 position of 2′-deoxyguanosine in duplex DNA. Methylated DNA, such as that produced by methyl methanesulfonate (MMS) and temozolomide, exists for days in organisms. The predominant consequence of N7-methyl-2′-deoxyguanosine (MdG) is widely believed to be abasic site (AP) formation via hydrolysis, a process...

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