Asymmetric intercalation of N1-(acridin-9-ylcarbonyl)spermine at homopurine sites of duplex DNA
作者:Ian S. Blagbrough、Steven Taylor、Steven Taylor、Mark L. Carpenter、Vyacheslav Novoselskiy、Tatyana Shamma、Ian S. Haworth
DOI:10.1039/a709193a
日期:——
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1
-(Acridin-9-ylcarbonyl)spermine binds at 5′-pu-p-pu..5′-py-p-py sites of DNA with the acridine moiety asymmetrically intercalated, stacked between the two purine bases; the spermine moiety interacts with the homopyrimidine phosphodiester backbone of the intercalation site and protects against DNase I cleavage of this backbone, but does not protect against cleavage of the homopurine backbone at the same intercalation site.
N 1 -(吖啶-9-羰基)精胺与 DNA 的 5′-pu-py-py 位点结合。精氨酸分子与插入位点的同源嘧啶磷酸二酯骨架相互作用,防止 DNase I 切割该骨架,但不能防止同源嘌呤骨架在同一插入位点被切割。