The tnfaip3 zebrafish orthologue26 encoded a predicted 762 amino acid polypeptide comprising an N-terminal ovarian tumour (OTU) domain (identity score of 94/100), including the putative catalytic cysteine at position 103 in A20’s OTU domain29, and seven zinc finger regions in the C-terminus (identity scores of 79/100) (Supplementary Fig. S2). This evidence concerns the gene TNFAIP3 and ovarian neoplasm.