we have discussed the possible hydrogen bonding mode of adenine-uracil base dimers and peptide side chains , together with their characteristic effects on the stability of adenine-uracil base pairing in chloroform solution by using proton nuclear magnetic resonance methods , where acetamide and butyric acid were used as a model of residues of glutamine and glutamic acid , respectively , and were added to an adenine-uracil equimolar mixture .
C0017797
glutamine
C0061472
glutamic acid