PREDICTING DNA DUPLEX STABILITY FROM THE BASE SEQUENCE
PREDICTING DNA DUPLEX STABILITY FROM THE BASE SEQUENCE
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DOI：
10.1073/pnas.83.11.3746
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发表时间：
1986-06-01
影响因子：
11.1
通讯作者：
MARKY, LA
中科院分区：
文献类型：
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作者：
BRESLAUER, KJ;FRANK, R;MARKY, LA
我们报告了所有10个沃森-克里克DNA最近邻相互作用的完整热力学库。我们从19个DNA低聚物和9个DNA聚合物的量热研究中得到了相关的热力学数据。我们展示了如何使用这些热力学数据来计算稳定性，并根据其碱基序列的知识预测任何DNA双工结构的温度依赖行为。我们通过使用最近邻数据来预测一系列DNA低聚物的转移焓和自由能来说明我们的计算方法。这些预测值与相应的实验值非常吻合。这种一致性表明，DNA双相结构的热力学可以被认为是其最近邻相互作用的总和。有了这些知识和这里报告的最近邻热力学数据，科学家们现在将能够通过检查其初级序列来预测任何DNA双工结构的稳定性（. delta . g.g度）和熔化行为（. delta . h.h度）。这种能力应该在许多应用中证明是有价值的，例如(i)预测探针基因复合物的稳定性；（ii）选择杂交实验的最佳条件；（iii）决定探针的最小长度；（iv）预测特定的翻转或转变对受影响DNA区域稳定性的影响；(v)预测DNA双链内局部结构域的相对稳定性。
We report the complete thermodynamic library of all 10 Watson-Crick DNA nearest-neighbor interactions. We obtained the relevant thermodynamic data from calorimetric studies on 19 DNA oligomers and 9 DNA polymers. We show how these thermodynamic data can be used to calculate the stability and predict the temperature-dependent behavior of any DNA duplex structure from knowledge of its base sequence. We illustrate our method of calculation by using the nearest-neighbor data to predict transition enthalpies and free energies for a series of DNA oligomers. These predicted values are in excellent agreement with the corresponding values determined experimentally. This agreement demonstrates that a DNA duplex structure thermodynamically can be considered to be the sum of its nearest-neighbor interactions. Armed with this knowledge and the nearest-neighbor thermodynamic data reported here, scientists now will be able to predict the stability (.DELTA.G.degree.) and the melting behavior (.DELTA.H.degree.) of any DNA duplex structure from inspection of its primary sequence. This capability should prove valuable in numerous applications, such as (i) predicting the stability of a probe-gene complex; (ii) selecting optimal conditions for a hybridization experiment; (iii) deciding on the minimum length of a probe; (iv) predicting the influence of a specific transversion or transition on the stability of an affected DNA region; and (v) predicting the relative stabilities of local domains within a DNA duplex.