pürinlerdir
Purines are a class of organic compounds that are essential components of all living organisms. They are heterocyclic aromatic organic compounds consisting of a pyrimidine ring fused to an imidazole ring. The two most important purines in biology are adenine and guanine, which are two of the four nucleotide bases in DNA and RNA. Adenine pairs with thymine in DNA and with uracil in RNA, while guanine pairs with cytosine in both.
In addition to their role in genetic material, purines are involved in a variety of other biological
The metabolism of purines is tightly regulated. They can be synthesized de novo from simpler precursors or