DNAJB1 and liver cancer: Testing this hypothesis, the Jin Zhang group demonstrated in atypical liver cancer that a fusion oncoprotein, PKAcat, interacts with DnaJ chaperones like DnaJB1 (DnaJB1-PKAcat) to prevent myristylation (a lipid PTM process that signals downstream apoptosis), a key PTM process that normally leads to apoptosis [180].