The ABL1 and ABL2 genes encode tyrosine kinases which share overlapping physiological roles and ABL2 somatic or amplification mutations are more common than similar mutations in ABL1 (6). | The ABL1 and ABL2 genes encode tyrosine kinases which share overlapping physiological roles and ABL2 somatic or amplification mutations are more common than similar mutations in ABL1 (6). |