Selective Incision of the 𝛼-𝑁^𝟓-Methyl-Formamidopyrimidine Anomer by Escherichia coli Endonuclease IV

Figure 3

Full-can mass spectrum of the Endo IV incision of the MeFapy-dG containing duplex; m/z 1825.4 [M-4H] and 1460.3 [M-5H] are the 5′-ACCACGCTAGC-(MeFapy-dG)-AGTCCTAACAAC-3′, m/z 1484.9 [M-5H] and 1237.2 [M-6H] are the 5′-GTTGTTAGGACTCGCTAGCGTGGT-3′, m/z 1094.1 [M-3H] and 820.3 [M-4H] are the 5′-ACCACGCTAGC-3′, and m/z 1345.2 [M-3H] and 1009.0 [M-4H]) is the 5′-p(MeFapy-dG)- AGTCCTAACAAC-3′ oligonucleotide.