head-to-head by a functionalizable five-atom linker. It was found that the IDA linker exerts a unique influence over the DNA binding conformation differing from both the beta-alanine (extended) or gamma-aminobutyric acid (hairpin) linkers, resulting in cooperative parallel side-by-side 2:1 binding in an extended conformation most likely with a staggered versus stacked alignment. A generalized variant of a fluorescent
制备了一系列
亚氨基二乙酸 (
IDA) 连接的聚酰胺 (DpPyPyPy-
IDA-PyPyPyDp),并构成通过可官能化的五原子接头头对头连接的聚酰胺。发现
IDA 接头对不同于
β-丙氨酸(延伸)或 γ-
氨基
丁酸(发夹)接头的 DNA 结合构象产生独特的影响,导致在最有可能具有交错排列与堆叠排列的扩展构象。在一系列包含系统变化的富含 A/T 的结合位点大小的发夹脱氧寡核苷酸上进行的荧光嵌入剂置换 (FID) 测定的通用变体用于区分
IDA 连接的聚酰胺的结合模式。