Post-transcriptional regulation by cytosine-5 methylation of RNA

Publication date: Available online 27 December 2018Source: Biochimica et Biophysica Acta (BBA) - Gene Regulatory MechanismsAuthor(s): Raquel García-Vílchez, Ana Sevilla, Sandra BlancoAbstractThe recent advent of high-throughput sequencing technologies coupled with RNA modifications detection methods has allowed the detection of RNA modifications at single nucleotide resolution giving a more comprehensive landscape of post-transcriptional gene regulation pathways. In this review, we focus on the occurrence of 5-methylcytosine (m5C) in the transcriptome. We summarise the main findings of the molecular role in post-transcriptional regulation that governs m5C deposition in RNAs. Functionally, m5C deposition can regulate several cellular and physiological processes including development, differentiation and survival to stress stimuli. Despite many aspects concerning m5C deposition in RNA, such as position or sequence context, and the fact that many readers and erasers still remain elusive, the overall recent findings indicate that RNA cytosine methylation is a powerful mechanism to post-transcriptionally regulate physiological processes. In addition, mutations in RNA cytosine-5 methyltransferases are associated to pathological processes ranging from neurological syndromes to cancer.
Source: Biochimica et Biophysica Acta (BBA) Gene Regulatory Mechanisms - Category: Genetics & Stem Cells Source Type: research