uracil
A common and naturally occurring pyrimidine nucleobase in which the pyrimidine ring is substituted with two oxo groups at positions 2 and 4. Found in RNA, it base pairs with adenine and replaces thymine during DNA transcription.
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04. Bioactive Capabilities of Specific Chemicals : Hydrolases [EC:3] > Acting on carbon-nitrogen bonds, other than peptide bonds [EC:3.5]