作者:Alexander Heckel、Peter B. Dervan
DOI:10.1002/chem.200304784
日期:2003.7.21
DNA-binding hairpin pyrrole-imidazole polyamides with gamma-aminobutyric acid as a turn-forming residue tolerate A.T or T.A base pairs under the turn. U-pins-polyamides with a different turn-have been synthesized and their DNA binding properties were studied. The two turn-forming residues are connected via the ring nitrogens using variable length aliphatic linkers ((CH(2))(n), n=3-6). Through optimization
DNA结合的发夹式吡咯-咪唑聚酰胺,具有γ-氨基丁酸作为回旋形成残基,可在回旋下耐受AT或TA碱基对。已经合成了具有不同转角的U-pins-聚酰胺,并研究了它们的DNA结合特性。使用可变长度的脂族接头((CH(2))(n),n = 3-6)经由环氮连接两个形成环的残基。通过优化接头长度和U形转角上吡咯残基2-位的取代基,可以发现具有GC / CG耐受性转角的聚酰胺,该聚酰胺以可预测的方式与DNA结合。