You don't need a backbone to carry a tumour suppressor gene.
Kemp
C J
CJ
D000818:Animals; D029721:Drosophila Proteins; D004331:Drosophila melanogaster / Q000235:genetics*; D016147:Genes, Tumor Suppressor; D006801:Humans; D011494:Protein Kinases / Q000235:genetics