SCN− binding to the charged lysines of histones end domains mimics acetylation and shows the major histone–DNA interactions involved in eu and heterochromatin stabilization
Abstract:SCN- binds to the charged amino group of lysines, inducing local changes in the electrostatic free energy of histones. We exploited this property to selectively perturb the histone-DNA interactions involved in the stabilization of eu and heterochromatin. Differential scanning calorimetry (DSC) was used as leading technique in combination with trypsin digestion that selectively cleaves the histone end domains. Euchromatin undergoes progressive destabilization with increasing KSCN concentration from 0 to 0.3 M. … Show more
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