The chemical structure of uracil, showing its single-ring pyrimidine structure. Uracil forms hydrogen bonds with adenine in RNA, contributing to the molecule's structure and function. (Image: Public ...

Lyttle and Petering 1,2 synthesized 5-bis-(2-chloroethyl)-aminouracil, uracil mustard, or NSC-34462 or U-8344 (Fig. 2), replacing the methyl group of nitrogen mustard with a physiologically active ...

Ribonucleic acid (RNA) is a linear molecule composed of four types of smaller molecules called ribonucleotide bases: adenine (A), cytosine (C), guanine (G), and uracil (U). RNA is often compared ...

Nicholas Hud holds up Uracil, on the right, a nucleobase of RNA. Barbituric acid, on the left, looks very much like it and could have been part of a proto-RNA that preceded RNA. Disclaimer ...

It is a polymeric molecule composed of nucleotides, each containing a ribose sugar, a phosphate group, and one of four nitrogenous bases: adenine (A), uracil (U), guanine (G), or cytosine (C). RNA is ...

Single-cell imaging and mass spectrometry data reveal adenosine in the DNA of mammalian cells can be methylated by METTL3 to form N6-methyladenosine in response to DNA damage.