Arnott S, Arnott S
Nucleic Acids Res. 1975 Sep;2(9):1493-502. doi: 10.1093/nar/2.9.1493.
The three satellite DNAs of Drosophila virilis, that approximate to poly d(CAAACTA)-poly d(TAGTTTG), poly d(TAAACTA)-poly d(TAGTTTA), poly d(CAAATTA)-poly d(TAATTTG), the satellite DNA of Drosophila melanogaster that approximates to poly d(AATAT)-poly d(ATATT), the synthetic DNA duplexes, poly dG-poly dC, poly d(AT)-poly d(AT), poly d(AAT)-poly d(ATT), poly d(AAC)-poly d(GTT), poly d(TAC)-poly d(GTA) and the block copolymer d(C15A15)-d(T15G15) all have circular dichroism spectra consistent with the propositions that they have the same molecular geometry in solution and that it is the kind and frequency of nucleotide triplet sequences that determines their spectral characteristics. Poly dA-poly dT is apparently an exception.
果蝇的三种卫星DNA,分别近似于聚d(CAAACTA)-聚d(TAGTTTG)、聚d(TAAACTA)-聚d(TAGTTTA)、聚d(CAAATTA)-聚d(TAATTTG),黑腹果蝇的卫星DNA近似于聚d(AATAT)-聚d(ATATT),合成DNA双链体聚dG-聚dC、聚d(AT)-聚d(AT)、聚d(AAT)-聚d(ATT)、聚d(AAC)-聚d(GTT)、聚d(TAC)-聚d(GTA)以及嵌段共聚物d(C15A15)-d(T15G15),它们的圆二色光谱均符合以下观点:它们在溶液中具有相同的分子几何结构,且是核苷酸三联体序列的种类和频率决定了它们的光谱特征。聚dA-聚dT显然是个例外。