611-53-0Relevant articles and documents
Fluorogenic Labeling of 5-Formylpyrimidine Nucleotides in DNA and RNA
Samanta, Biswajit,Seikowski, Jan,H?bartner, Claudia
, p. 1912 - 1916 (2016)
5-Formylcytosine (5fC) and 5-formyluracil (5fU) are natural nucleobase modifications that are generated by oxidative modification of 5-methylcytosine and thymine (or 5-methyluracil). Herein, we describe chemoselective labeling of 5-formylpyrimidine nucleotides in DNA and RNA by fluorogenic aldol-type condensation reactions with 2,3,3-trimethylindole derivatives. Mild and specific reaction conditions were developed for 5fU and 5fC to produce hemicyanine-like chromophores with distinct photophysical properties. Residue-specific detection was established by fluorescence readout as well as primer-extension assays. The reactions were optimized on DNA oligonucleotides and were equally suitable for the modification of 5fU- and 5fC-modified RNA. This direct labeling approach of 5-formylpyrimidines is expected to help in elucidating the occurrence, enzymatic transformations, and functional roles of these epigenetic/epitranscriptomic nucleobase modifications in DNA and RNA. Shining a light on formylpyrimidines: Mild and orthogonal reaction conditions were established for fluorogenic aldol condensation reactions to generate hemicyanine-like chromophores in DNA and RNA for the residue-specific detection of 5-formyluracil and 5-formylcytosine, which are two naturally occurring oxidized analogues of 5-methylated pyrimidine nucleobases.
BUILDING BLOCKS AND METHODS FOR THE SYNTHESIS OF 5-HYDROXYMETHYLCYTOSINE-CONTAINING NUCLEIC ACIDS
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Paragraph 0052-0055, (2013/09/26)
The present invention relates to building blocks and methods for the efficient synthesis of 5-hydroxymethylcytosine-containing nucleic acids such as DNA or RNA.
NUCLEIC ACIDSBUILDING BLOCKS AND METHODS FOR THE SYNTHESIS OF 5-HYDROXYMETHYLCYTOSINE-CONTAINING
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Page/Page column 13; 14, (2012/05/31)
The present invention relates to building blocks and methods for the efficient synthesis of 5-hydroxymethylcytosine-containing nucleic acids such as DNA or RNA.