As we previously reported aberrant expression of a truncated form of TG2 (TGM2_v2) displaying a new epitope in multiple cancer cell lines [26], we raised an antibody towards the unique epitope (in exon 10b) (Supplementary Fig. 2) to evaluate the presence of this TG2 isoform in PC3 and DU145. This evidence concerns the gene TGM2 and cancer.