- A nitrogenous base, one of the four that make up DNA and RNA, represented by the letter C.
- A derivative of this base used in some chemical and biochemical processes.
From the greek word kytos, meaning cell, and the suffix -ine, meaning belonging to or of the nature of.
- Cytosine is one of the building blocks of DNA and RNA.
- The methylation of cytosine plays a crucial role in the regulation of gene expression.
- Cytosine is paired with guanine in the DNA molecule.
- The reaction between cytosine and uracil leads to the formation of a covalent bond.
- Cytosine can be converted into another nitrogenous base, uracil, in a process known as deamination.