ribosylating target proteins, which earmark them for degradation by the ubiquitin–
proteasomal system. Prominent targets of the catalytic activity of TNKS1/2 include AXIN
proteins, resulting in TNKS1/2 being attractive biotargets for addressing of oncogenic WNT/β-
catenin signaling. Although several potent small molecules have been developed to inhibit
TNKS1/2, there are currently no TNKS1/2 inhibitors available in clinical practice. The …