| Chapter title |
RNA Structure Determination
|
|---|---|
| Chapter number | 5 |
| Book title |
RNA Structure Determination
|
| Published in |
Methods in molecular biology, January 2016
|
| DOI | 10.1007/978-1-4939-6433-8_5 |
| Pubmed ID | |
| Book ISBNs |
978-1-4939-6431-4, 978-1-4939-6433-8
|
| Authors |
Xu, Xiaojun, Chen, Shi-Jie, Xiaojun Xu, Shi-Jie Chen |
| Abstract |
RNA/RNA interactions are essential for genomic RNA dimerization and regulation of gene expression. Intermolecular loop-loop base pairing is a widespread and functionally important tertiary structure motif in RNA machinery. However, computational prediction of intermolecular loop-loop base pairing is challenged by the entropy and free energy calculation due to the conformational constraint and the intermolecular interactions. In this chapter, we describe a recently developed statistical mechanics-based method for the prediction of RNA/RNA complex structures and stabilities. The method is based on the virtual bond RNA folding model (Vfold). The main emphasis in the method is placed on the evaluation of the entropy and free energy for the loops, especially tertiary kissing loops. The method also uses recursive partition function calculations and two-step screening algorithm for large, complicated structures of RNA/RNA complexes. As case studies, we use the HIV-1 Mal dimer and the siRNA/HIV-1 mutant (T4) to illustrate the method. |
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