Synthesis and hybridization properties of the conjugates of oligonucleotides and stabilization agents—II
作者:A. Balbi、E. Sottofattori、T. Grandi、M. Mazzei、Dmitri S. Pyshnyi、Sergej G. Lokhov、Alexander V. Lebedev
DOI:10.1016/s0968-0896(97)00127-2
日期:1997.10
synthesized. These derivatives were covalently attached through the 5'-phosphoramide linkage to heptanucleotide pd(CCAAACA). Complementary complexes of the octanucleotide pd(TGTTTGGC) and above oligonucleotide conjugates were tested for their thermodynamic response. The Tm data and thermodynamic parameters for complex formation have demonstrated the ability of chromone (gamma-pyrone) and coumarin (alpha-pyrone)
合成了具有三或五亚甲基胺接头功能的新的吡喃酮衍生物。这些衍生物通过5'-磷酰胺键共价附于七核苷酸pd(CCAAACA)。测试八核苷酸pd(TGTTTGGC)和上述寡核苷酸缀合物的互补复合物的热力学响应。配合物形成的Tm数据和热力学参数表明色酮(γ-吡喃酮)和香豆素(α-吡喃酮)衍生物具有稳定7-mer / 8-mer互补复合物的能力,最可能是通过吡喃的堆积相互作用邻近核苷酸碱基的芳香系统。色酮(或香豆素)衍生物对寡核苷酸复合物(37摄氏度下的delta delta G)稳定性的影响在-1.0至-1之间。