Classification of RNA backbone conformations into rotamers using 13C' chemical shifts: Exploring how far we can go

The conformational space of the ribose-phosphate backbone is very complex as it is defined in terms of six torsional angles. To help delimit the RNA backbone conformational preferences, 46 rotamers have been defined in terms of these torsional angles. In the present work, we use the ribose experimen...

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Detalles Bibliográficos
Autores: Icazatti Zuñiga, Alejandro Ariel, Loyola, Juan Martin, Szleifer, Igal, Vila, Jorge Alberto, Martín, Osvaldo Antonio
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/136394
Acceso en línea:http://hdl.handle.net/11336/136394
Access Level:acceso abierto
Palabra clave:CHEMICAL SHIFTS
DFT
MACHINE LEARNING
RNA
ROTAMERS
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
Descripción
Sumario:The conformational space of the ribose-phosphate backbone is very complex as it is defined in terms of six torsional angles. To help delimit the RNA backbone conformational preferences, 46 rotamers have been defined in terms of these torsional angles. In the present work, we use the ribose experimental and theoretical 13C' chemical shifts data and machine learning methods to classify RNA backbone conformations into rotamers and families of rotamers. We show to what extent the experimental 13C' chemical shifts can be used to identify rotamers and discuss some problem with the theoretical computations of 13C' chemical shifts.