41. Uracil is not usually found in DNA, occurring only as a breakdown product of cytosine.42. Adenine readily binds uracil or thymine. 43. Uracil is chemically very similar to thymine, which is also known as 5-methyluracil.44. Methylated cytosine residues are unchanged by the treatment, whereas unmethylated ones are changed to uracil . 45. UDP consists of the pyrophosphate group, the pentose sugar ribose, and the nucleobase uracil . 46. Uracil can be synthesized by the hydrolysis of Cytosine, ( see Uracil # Synthesis ).47. Uracil can be synthesized by the hydrolysis of Cytosine, ( see Uracil # Synthesis ). 48. The CRL4A DCAF1-Vpr induces ubiquitination of the nuclear isoform of uracil -DNA glycosylase. 49. Currently, surgeons use two drugs, Mytomycin and 5 Fluoro Uracil to prevent the scar tissue. 50. Alkyl uracil derivatives have been known for some time to act as diuretic agents in experimental animals.
