Abstract
Background
Current biological research extensively describes the interactions of molecules such as RNA with other nucleic acids or proteins. However, the relatively recent discovery of nuclear phospholipids playing biologically relevant processes outside membranes, as well as, RNA-lipid interactions shows the need for new methods to explore the identity of these RNAs.
Methods and results
In this study, we describe the method for LIPID-RNA isolation followed by sequencing and analysis of the RNA that has the ability to interact with the selected lipids. Here we utilized specific phospholipid coated beads for selective RNA binding. We tested RNA from organisms belonging to different realms (human, plant, and yeast), and tested their ability to bind a specific lipid.
Conclusions
The results show several RNAs differentially enriched in the pull-down of phosphatidyl Inositol 4,5 bisphosphate coated beads. This method is helpful to screen lipid-binding RNA, which may have relevant biological functions. The method can be used with different lipids and comparison of pull-downs and can narrow the selection of RNAs that interact with a particular lipid for further studies.
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Abbreviations
- PIP2:
-
Phosphatidylinositol 4, 5 bisphosphate
- PI4P:
-
Phosphatidylinositol 4 phosphate
- PA:
-
Phosphatidic acid
- PIP3:
-
Phosphatidylinositol 3, 4, 5-trisphosphate
- lncRNA:
-
Long non-coding RNA
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Acknowledgements
We would like to tank Pavel Kriz and Wilma Gonzalez for their technical help.
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AB, SG, AJ, and EC designed the experiments; AB, MS and EC performed the experiments with human; AB and SG performed the experiments with S. queretaroensis; AJ and EC performed the experiments with Yeast; AB and APS carried out the bioinformatics; PH and LC help with the data analysis and editing of the manuscript. AB, AJ, APS, and EC wrote the manuscript with the input of all the authors.
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(Internship LTC19048 and LTC20024) and the project: BIOCEV – Biotechnology and Biomedicine Centre of the Academy of Sciences and Charles University (CZ.1.05/1.1.00/02.0109), from the European Regional Development Fund. COST Pan-European Network in Lipidomics and EpiLipidomics (EpiLipidNET CA19105 action). The Microscopy Centre was supported by the MEYS CR (LM2018129 Czech-BioImaging) and by the European Regional Development Fund-Project “Modernization and support of research activities of the national infrastructure for biological and medical imaging CzechBioImaging” (no. CZ.02.1.01/0.0/0.0/16_013/0001775) and by CONACYT grant FC2016/1572.
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Bayona-Hernandez, A., Guerra, S., Jiménez-Ramirez, I. et al. LIPRNAseq: a method to discover lipid interacting RNAs by sequencing. Mol Biol Rep 50, 6619–6626 (2023). https://doi.org/10.1007/s11033-023-08548-5
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DOI: https://doi.org/10.1007/s11033-023-08548-5