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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Design of artificial sequence-specific DNA bending ligands
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Design of artificial sequence-specific DNA bending ligands

机译:人工序列特异性DNA弯曲配体的设计

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摘要

Proteins that bend DNA are important regulators of biological processes. Sequence-specific DNA bending ligands have been designed that bind two noncon- tiguous sites in the major groove and induce a bend in the DNA. An oligonucleotide containing pyrimidine segments separated by a central variable linker domain simulta- neously binds by triple helix formation two 15-bp purine tracts separated by 10 bp. Bend angles of 61 deg, 50 deg and 38 deg directed towards the minor groove were quantitated by phasing analysis for linkers of four, five, and six T residues, respectively. The design and synthesis of nonnatural archi- tectural factors may provide a new class of reagents for use in biology and human medicine.
机译:使DNA弯曲的蛋白质是生物过程的重要调节剂。已经设计出了序列特异性的DNA弯曲配体,该配体结合了大沟中的两个不连续位点并诱导了DNA的弯曲。含有被中央可变接头结构域分隔的嘧啶区段的寡核苷酸通过三螺旋形成同时结合两个15 bp的嘌呤段,其间隔为10 bp。分别通过对四个,五个和六个T残基的连接体进行定相分析,确定了指向小沟的61度,50度和38度弯曲角。非自然结构因素的设计和合成可能会提供一类用于生物学和人类医学的新型试剂。

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