M. Acedo et al., A SIMPLE METHOD FOR N-15 LABELING OF EXOCYCLIC AMINO-GROUPS IN SYNTHETIC OLIGODEOXYNUCLEOTIDES, Nucleic acids research, 22(15), 1994, pp. 2982-2989
The use of the ammonia deprotection step to introduce N-15 labels at s
pecific exocyclic amino positions of adenine, cytosine, guanine or 2-a
minopurine of oligodeoxynucleotides is described.