Synthesis and Multiple Incorporations of 2′-O-Methyl-5-hydroxymethylcytidine, 5-Hydroxymethylcytidine and 5-Formylcytidine Monomers into RNA Oligonucleotides
نویسندگان
چکیده
The synthesis of 2'-O-methyl-5-hydroxymethylcytidine (hm5 Cm), 5-hydroxymethylcytidine (hm5 C) and 5-formylcytidine (f5 C) phosphoramidite monomers has been developed. Optimisation of mild post-synthetic deprotection conditions enabled the synthesis of RNA containing all four naturally occurring cytosine modifications (hm5 Cm, hm5 C, f5 C plus 5-methylcytosine). Given the considerable interest in RNA modifications and epitranscriptomics, the availability of synthetic monomers and RNAs containing these modifications will be valuable for elucidating their biological function(s).
منابع مشابه
2′-O-Methyl-5-hydroxymethylcytidine: A Second Oxidative Derivative of 5-Methylcytidine in RNA
5-Hydroxymethylcytidine (hm5C) was recently identified as a direct metabolite of m5C in RNA. We investigated the stability of hm5C in human cells using bio-isotopologues and LC-MS/HRMS. This has led to the discovery of a second oxidative metabolite of m5C in RNA, namely 2'-O-methyl-5-hydroxymethylcytidine (hm5Cm). Subsequent quantitative analysis of total RNA from higher organisms revealed vary...
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