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. 2011 Aug 25;286(42):36198–36214. doi: 10.1074/jbc.M111.279232

FIGURE 5.

FIGURE 5.

NMR spectra of nucleosides treated with β-propiolactone. I, deoxyguanosine. II, deoxyadenosine. III, cytidine. Unmodified nucleosides cause off-scale peaks, whereas adducts show downfield-shifted peaks.