Methods and compositions are provided for forming complexes between dsDNA and novel DNA-binding polymers comprising N-terminal thiophene-containing moieties which exhibit selectivity for T-A base pairs. By appropriate choice of target sequences and DNA-binding polymers, complexes comprising polymer-DNA are obtained with high association constants. The formation of complexes can be used for identification of specific dsDNA sequences, for inhibiting gene transcription, and as a therapeutic for inhibiting proliferation of undesired cells or modulation of expression of specific genes.
提供了一种形成双链DNA与含有N-末端
噻吩基团的新型DNA结合聚合物之间的复合物的方法和组合物,这些聚合物对T-A碱基对具有选择性。通过适当选择目标序列和DNA结合聚合物,可以获得具有高结合常数的聚合物-DNA复合物。这些复合物的形成可用于特定双链DNA序列的识别,用于抑制
基因转录,以及作为抑制不需要的细胞增殖或调控特定
基因表达的治疗方法。