Sequence-Specific Association in Aqueous Media by Integrating Hydrogen Bonding and Dynamic Covalent Interactions
作者:Minfeng Li、Kazuhiro Yamato、Joseph S. Ferguson、Bing Gong
DOI:10.1021/ja064515n
日期:2006.10.1
in nonpolar solvents were converted into disulfide cross-linked duplexes in aqueous media. Thus, by incorporating trityl-protected thiol groups, which allows the reversible formation of disulfide bonds, into the oligoamide strands, only duplexes consisting of complementary hydrogen-bonding sequences were formed in aqueous solution as well as in methanol. The sequence-specific cross-linking of oligoamide
在非极性溶剂中以序列特异性方式关联成氢键双链体的寡酰胺链在水性介质中转化为二硫化物交联双链体。因此,通过将三苯甲基保护的硫醇基团(其允许二硫键的可逆形成)结合到寡酰胺链中,在水溶液和甲醇中仅形成由互补氢键序列组成的双链体。寡酰胺链的序列特异性交联通过 MALDI-TOF、反相 HPLC 和分离交联双链体得到证实。该研究表明,通过氢键和可逆共价相互作用的相互作用,多重氢键系统的序列特异性特征可以扩展到竞争介质中,