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Mass spectrometric analyses of C. jejuni 12661 nucleotide pools after CP220 phage infection. (A) MS spectrum showing that dADG is produced in a CP220-infected culture of C. jejuni 12661. (B) MS/MS fragmentation spectrum of the dADG peak observed in panel A. (C) The MS spectrum of the C. jejuni 12661 nucleotide pool shows no mass corresponding to dADG.
