Abstract

We report the chemical synthesis of a set of nicotinamide adenine dinucleotide (NAD) cap analogues containing chemical modifications that reduce their susceptibility to NAD-RNA-degrading enzymes. These analogues can be incorporated into transcripts in a similar way as NAD. Biochemical characterization of RNAs carrying these caps with DXO, NudC, and Nudt12 enzymes led to the identification of compounds that can be instrumental in unraveling so far unaddressed biological aspects of NAD-RNAs.

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