5116-24-5Relevant articles and documents
Catalytic Space Engineering as a Strategy to Activate C-H Oxidation on 5-Methylcytosine in Mammalian Genome
Dey, Debasis,Islam, Kabirul,Sappa, Sushma,Sudhamalla, Babu
supporting information, p. 11891 - 11896 (2021/08/20)
Conditional remodeling of enzyme catalysis is a formidable challenge in protein engineering. Herein, we have undertaken a unique active site engineering tactic to command catalytic outcomes. With ten-eleven translocation (TET) enzyme as a paradigm, we show that variants with an expanded active site significantly enhance multistep C-H oxidation in 5-methylcytosine (5mC), whereas a crowded cavity leads to a single-step catalytic apparatus. We further identify an evolutionarily conserved residue in the TET family with a remarkable catalysis-directing ability. The activating variant demonstrated its prowess to oxidize 5mC in chromosomal DNA for potentiating expression of genes including tumor suppressors.
Fluorescent Wittig reagent as a novel ratiometric probe for the quantification of 5-formyluracil and its application in cell imaging
Zhou, Qian,Li, Kun,Liu, Yan-Hong,Li, Ling-Ling,Yu, Kang-Kang,Zhang, Hong,Yu, Xiao-Qi
, p. 13722 - 13725 (2019/01/03)
The chemically selective detection of natural nucleobase modifications has been regarded as the key step in understanding their important roles in epigenetics. Herein, for the first time, we introduce a Wittig reaction into the design of reaction-based fluorescent probes for ratiometrically detecting 5fU, selectively labelling 5fU-modified DNA and imaging intracellular 5fU produced by γ-irradiation.
5-Hydroxymethylcytosine and 5-formylcytosine containing deoxyoligonucleotides: Facile syntheses and melting temperature studies
Xuan, Shuguang,Wu, Qiong,Cui, Liang,Zhang, Dawei,Shao, Fangwei
supporting information, p. 1186 - 1191 (2015/03/14)
An oxidation-based synthetic approach was developed for facile preparation of 5-formyl-2′-deoxycytidine and 5-hydroxymethyl-2′-deoxycytidine phosphoramidites. Upon introducing organic solvent components and copper catalysts, C5-methyl groups of 5-methyl-2′-deoxycytidine and thymidine were readily oxidized to formyl and hydroxyl functionality, respectively. Standard solid phase DNA synthesis and conventional deprotection methods were applicable to synthesize 5-formyl- or 5-hydroxymethyl-cytosine containing DNA oligonucleotides, which were used to study the effect of epigenetic modifications on DNA thermal dynamic stability.