Kataoka Masanori, Hirano Taisuke, Kuroda Kenji, Hayakawa Yoshihiro
Research Center for Computational Science, National Institutes for Natural Sciences, Okazaki 444-8787, Japan.
Nucleic Acids Symp Ser (Oxf). 2005(49):119-20. doi: 10.1093/nass/49.1.119.
A derivative of pyrimido[4,5-d]pyrimidine-2,4,5,7-(1H,3H,6H,8H)-tetraone (PPT), which may form various keto-enol tautomers suitable for forming base pairs with all natural bases, and is thus expected to serve as a universal base, was synthesized. The ability of PPT to form base pairs with natural bases was evaluated by UV analysis.