Structure of the catalytically active APOBEC3G bound to a DNA oligonucleotide inhibitor reveals tetrahedral geometry of the transition state

Here, the enzymatic activity of APOBEC3G resulting in conversion of 2′-deoxy-zebularine into a hydration product allowed the authors to capture the transition state, which provides a blueprint for designing a new class of transition state-mimicking inhibitors for this class of enzyme.