Adenine-guanine base pairing ribosomal RNA.
Adenine-guanine base pairing ribosomal RNA.
复制标题
腺嘌呤-鸟嘌呤碱基配对核糖体 RNA。
作者：
W. Traub;J. Sussman
对核糖体RNA二级结构的分析表明，在直接毗邻假定的双螺旋区末端的不同种类的碱基对中，只有A- g在5'端有A显著超过随机碱基分布的预期数量。提出了A(syn)-G（trans）氢键碱基对。这可能适合于未扭曲的双螺旋的末端，但会阻止进一步的碱基堆叠，从而有利于双螺旋的断裂，从而产生非线性的三级结构。
Analyses of secondary structures proposed for ribosomal RNA's show that, of the different kinds of base pairs directly adjoining the ends of postulated double-helical regions, only A-G with A at the 5' end significantly exceeds the number expected for a random base distribution. An A(syn)-G(trans) hydrogen-bonded basepair is proposed. This could fit at the end of an undistorted double helix, but would prevent further base stacking, thus favoring a break in the double helix to produce a non-linear tertiary structure.