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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Main Authors: Alejandro A. Icazatti, Juan M. Loyola, Igal Szleifer, Jorge A. Vila, Osvaldo A. Martin
Format: Article
Language:English
Published: PeerJ Inc. 2019-10-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/7904.pdf
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author Alejandro A. Icazatti
Juan M. Loyola
Igal Szleifer
Jorge A. Vila
Osvaldo A. Martin
author_facet Alejandro A. Icazatti
Juan M. Loyola
Igal Szleifer
Jorge A. Vila
Osvaldo A. Martin
author_sort Alejandro A. Icazatti
collection DOAJ
description 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.
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spelling doaj.art-ae26a3bb898746c5b0978b6448e8b4652023-12-03T11:00:53ZengPeerJ Inc.PeerJ2167-83592019-10-017e790410.7717/peerj.7904Classification of RNA backbone conformations into rotamers using 13C′ chemical shifts: exploring how far we can goAlejandro A. Icazatti0Juan M. Loyola1Igal Szleifer2Jorge A. Vila3Osvaldo A. Martin4IMASL - CONICET, Universidad Nacional de San Luis, San Luis, ArgentinaIMASL - CONICET, Universidad Nacional de San Luis, San Luis, ArgentinaDepartment of Biomedical Engineering, Northwestern University, Evanston, IL, United States of AmericaIMASL - CONICET, Universidad Nacional de San Luis, San Luis, ArgentinaIMASL - CONICET, Universidad Nacional de San Luis, San Luis, ArgentinaThe 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.https://peerj.com/articles/7904.pdfRNARotamersMachine learningChemical shiftsDFT
spellingShingle Alejandro A. Icazatti
Juan M. Loyola
Igal Szleifer
Jorge A. Vila
Osvaldo A. Martin
Classification of RNA backbone conformations into rotamers using 13C′ chemical shifts: exploring how far we can go
PeerJ
RNA
Rotamers
Machine learning
Chemical shifts
DFT
title Classification of RNA backbone conformations into rotamers using 13C′ chemical shifts: exploring how far we can go
title_full Classification of RNA backbone conformations into rotamers using 13C′ chemical shifts: exploring how far we can go
title_fullStr Classification of RNA backbone conformations into rotamers using 13C′ chemical shifts: exploring how far we can go
title_full_unstemmed Classification of RNA backbone conformations into rotamers using 13C′ chemical shifts: exploring how far we can go
title_short Classification of RNA backbone conformations into rotamers using 13C′ chemical shifts: exploring how far we can go
title_sort classification of rna backbone conformations into rotamers using 13c chemical shifts exploring how far we can go
topic RNA
Rotamers
Machine learning
Chemical shifts
DFT
url https://peerj.com/articles/7904.pdf
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