Gaffney B L, Marky L A, Jones R A
Nucleic Acids Res. 1982 Jul 24;10(14):4351-61. doi: 10.1093/nar/10.14.4351.
A self-complementary hexanucleotide consisting of thymidine and 2-amino-deoxyadenosine, d(TA')3, has been synthesized by a solid phase phosphotriester method. Melting studies show that the additional hydrogen bond afforded by the 2-amino group substantially stabilizes the duplex. Moreover, conformational analysis using circular dichroism shows that a salt-induced conformational transition occurs, similar to the B leads to Z transition observed for d(CG)n oligonucleotides.
一种由胸苷和2-氨基脱氧腺苷组成的自互补六核苷酸d(TA')3,已通过固相磷酸三酯法合成。熔解研究表明,2-氨基提供的额外氢键极大地稳定了双链体。此外,使用圆二色性的构象分析表明,发生了盐诱导的构象转变,类似于在d(CG)n寡核苷酸中观察到的B型向Z型转变。