Isoenergetic microarrays to study the structure and interactions of DsrA and OxyS RNAs in two- and three-component complexes.

Isoenergetic microarrays to study the structure and interactions of DsrA and OxyS RNAs in two- and three-component complexes.
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DOI:
10.1021/bi200463p
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发表时间:
2011-09-06
期刊:
影响因子:
2.9
通讯作者:
Kierzek E
Kierzek E
中科院分区:
生物学3区
文献类型:
--
作者:
Fratczak A;Kierzek R;Kierzek E

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关于RNA的二级结构和相互作用的信息对于理解RNA的生物学功能以及将RNA作为治疗工具应用是重要的。近年来,等能微阵列作图方法被用来改进RNA二级结构的预测。在这里,我们首次使用等能微阵列来研究RNA与蛋白质或其他RNA的结合,以及三组分复合体中两个不同的RNA与蛋白质的相互作用。作为模型的RNA是来自大肠杆菌的调控的DSRA和oxys RNA,它们的靶mRNAs片段(fhlA和rpos),以及它们与Hfq蛋白的复合体。收集的结果显示了微阵列作图的优势和一些局限性。
Information on the secondary structure and interactions of RNA is important to understand the biological function of RNA as well as in applying RNA as a tool for therapeutic purposes. Recently, the isoenergetic microarray mapping method was developed to improve the prediction of RNA secondary structure. Herein, for the first time, isoenergetic microarrays were used to study the binding of RNA to protein or other RNAs, as well as the interactions of two different RNAs and protein in a three-component complex. The RNAs used as models were the regulatory DsrA and OxyS RNAs from Escherichia coli, the fragments of their target mRNAs (fhlA and rpoS), and their complexes with Hfq protein. The collected results showed the advantages and some limitations of microarray mapping.
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