Interaction energies in hydrogen-bonded purine-pyrimidine triplets.
D000225:Adenine; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003596:Cytosine; D004735:Energy Transfer; D006147:Guanine; D006859:Hydrogen; D007042:Hypoxanthines; D011687:Purines; D011743:Pyrimidines; D014498:Uracil
D007042:Hypoxanthines; D011687:Purines; D011743:Pyrimidines; D014498:Uracil; D006147:Guanine; D006859:Hydrogen; D003596:Cytosine; D000225:Adenine