title: Computational prediction of non-enzymatic RNA degradation patterns.
abstract: Since the beginning of the 21st century, an increasing interest in the research of ribonucleic acids has been observed in response to a surprising discovery of the role that RNA molecules play in the biological systems. It was demonstrated that they do not only take part in the protein synthesis (mRNA, rRNA, tRNA) but also are involved in the regulation of gene expression. Several classes of small regulatory RNAs have been discovered (e.g. microRNA, small interfering RNA, piwiRNA). Most of them are excised from specific double-stranded RNA precursors by enzymes that belong to the RNaseIII family (Drosha, Dicer or Dicer-like proteins). More recently, it has been shown that small regulatory RNAs are also generated as stable intermediates of RNA degradation (the so called RNA fragments originating from tRNA, snRNA, snoRNA etc.). Unfortunately, the mechanisms underlying biogenesis of the RNA fragments remain unclear. It is thought that several factors may be involved in the formation of the RNA fragments. The most important are the specific RNases, RNA-protein interactions and RNA structure. In this work, we focus on the RNA primary and secondary structures as factors influencing the RNA stability and consequently the pattern of RNA fragmentation. Earlier, we identified the major structural factors affecting non-enzymatic RNA degradation. Now, based on these data, we developed a new branch-and-cut algorithm that is able to predict the products of large RNA molecules' hydrolysis in vitro. We also present the experimental data that verify the results generated using this algorithm.
authors.affiliation: Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznań, Poland; Institute of Computing Science, Poznan University of Technology, Poznań, Poland; European Centre for Bioinformatics and Genomics, Poznań, Poland.
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Rybarczyk
authors.affiliation: Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznań, Poland; Institute of Chemical Technology and Engineering, Poznan University of Technology, Poznań, Poland.
authors.forename: Paulina
authors.initials: P
authors.lastname: Jackowiak
authors.affiliation: Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznań, Poland; Institute of Computing Science, Poznan University of Technology, Poznań, Poland; European Centre for Bioinformatics and Genomics, Poznań, Poland.
authors.forename: Marek
authors.initials: M
authors.lastname: Figlerowicz
authors.affiliation: Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznań, Poland; Institute of Computing Science, Poznan University of Technology, Poznań, Poland; European Centre for Bioinformatics and Genomics, Poznań, Poland.
authors.forename: Jacek
authors.initials: J
authors.lastname: Blazewicz
mesh_terms: D000465:Algorithms; D001483:Base Sequence; D003198:Computer Simulation; D055029:Inverted Repeat Sequences; D008958:Models, Molecular; D009690:Nucleic Acid Conformation; D012313:RNA / Q000737:chemistry; D020871:RNA Stability
chemical_list: D012313:RNA