5Methyluracil
5-Methyluracil, commonly known as thymine, is one of the four nucleobases found in DNA. It is a pyrimidine base with a carbonyl group at position 2 and 4 and a methyl group at position 5, giving the formula C5H6N2O2. Thymine is distinguished from uracil by this methyl substituent and is not used in RNA, where uracil serves as the corresponding base.
In double-stranded DNA, thymine pairs with adenine through two hydrogen bonds, contributing to the stability and
Biosynthesis and metabolism: Thymine is supplied to DNA synthesis in the form of deoxythymidine nucleotides, primarily
Genomic significance: The presence of thymine in DNA, rather than uracil, helps distinguish genomic DNA from