Purine is an aromatic heterocyclic organic compound. It is biosynthesized from amino acids and bicarbonate.1 Purine is the core structure of the nucleobases adenine and guanine, the nucleosides adenosine and guanosine , and the nucleotides, adenosine mono- , di- , and triphosphate , and guanosine mono- , di-, and triphosphate .
1.Berg, J.M., Tymoczko, J.L., and Stryer, L.Biochemistry(2002)
















