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M1dG- and OPdA-modified oligonucleotides synthesized in this studied and their mass spectral characterization.
| Oligonucleotide | m/z (da) | |
|---|---|---|
| calcd | observed | |
| 5′-GCTAGC-M1dG-AGTCC-3′ (9) | 3680.6 | 3681.4 |
| 5′-TCGTT-OPdA-TTGCT-3′ (12) | 3365.6 | 3366.8 |
| 5′-CAGTC-OPdA-CTAGA-3′ (13) | 3377.6 | 3377.5 |
| 5′-CAGTG-OPdA-GTAGA-3′ (14) | 3417.7 | 3418.6 |
| 5′-GCAAAAA-OPdA-AAAACATGG-3′ (15) | 5304.9 | 5306.4 |
