Effects of spermine and its cytotoxic analogs on nucleosome formation on topologically stressed DNA in vitro.

Abstract

We investigated the effects of the polyamine spermine and two of its cytotoxic analogs 1,11-bis(ethylamino)-4,8-diazaundecane (BE-3-3-3) and 1,19-bis(ethylamino)-5,10,15-tirazanonadecane (BE-4-4-4-4) on the formation of nucleosomes on negatively and positively supercoiled DNA in vitro. Histones H2A, H2B, H3 and H4 were reconstituted onto DNA to form… (More)

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