Building the library of RNA 3D nucleotide conformations using the clustering approach

• Autorzy: Zok T. , Antczak M. , Riedel M. , Nebel D. , Villmann T. , Lukasiak P. , Blazewicz J. , Szachniuk M.

Identyfikatory

DOI

10.1515/amcs-2015-0050

• Języki publikacji: EN

Abstrakty

EN

An increasing number of known RNA 3D structures contributes to the recognition of various RNA families and identification of their features. These tasks are based on an analysis of RNA conformations conducted at different levels of detail. On the other hand, the knowledge of native nucleotide conformations is crucial for structure prediction and understanding of RNA folding. However, this knowledge is stored in structural databases in a rather distributed form. Therefore, only automated methods for sampling the space of RNA structures can reveal plausible conformational representatives useful for further analysis. Here, we present a machine learning-based approach to inspect the dataset of RNA three-dimensional structures and to create a library of nucleotide conformers. A median neural gas algorithm is applied to cluster nucleotide structures upon their trigonometric description. The clustering procedure is two-stage: (i) backbone- and (ii) ribose-driven. We show the resulting library that contains RNA nucleotide representatives over the entire data, and we evaluate its quality by computing normal distribution measures and average RMSD between data points as well as the prototype within each cluster.

Słowa kluczowe

EN

RNA nucleotides; conformer library; torsion angles; clustering; neural gas

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mathematics and Computer Science
• Rocznik: 2015
• Tom: Vol. 25, no. 3
• Strony: 689--700
• Opis fizyczny: Bibliogr. 32 poz., rys., tab., wykr.

Twórcy

autor

Zok T.

• Institute of Computing Science, Poznań University of Technology, Piotrowo 2, 60-965 Poznań, Poland

autor

Antczak M.

• Institute of Computing Science, Poznań University of Technology, Piotrowo 2, 60-965 Poznań, Poland

autor

Riedel M.

• Computational Intelligence Group, University of Applied Sciences, Technikumplatz 17, D-09648 Mittweida, Germany

autor

Nebel D.

• Computational Intelligence Group, University of Applied Sciences, Technikumplatz 17, D-09648 Mittweida, Germany

autor

Villmann T.

• Computational Intelligence Group, University of Applied Sciences, Technikumplatz 17, D-09648 Mittweida, Germany

autor

Lukasiak P.

• Institute of Computing Science, Poznań University of Technology, Piotrowo 2, 60-965 Poznań, Poland; Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznań, Poland

autor

Blazewicz J.

• Institute of Computing Science, Poznań University of Technology, Piotrowo 2, 60-965 Poznań, Poland; Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznań, Poland

autor

Szachniuk M.

• Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznań, Poland; Institute of Computing Science, Poznań University of Technology, Piotrowo 2, 60-965 Poznań, Poland

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