Examples of these types of proteins are: AML‐specific (MLL‐fusions, PML‐RARα or AML1‐ETO) or ALL‐specific (TCF3‐PBX1 or ETV6‐RUNX1) fusion oncoproteins.187, 188, 189, 190. The gene discussed is TCF3; the disease is acute lymphoblastic leukemia.