CNTNAP1 and acute lymphoblastic leukemia: Apart from the most frequent fusions, p190 and p210, there are several other low frequent fusions (e19a2) and rare fusions (e6a2, e8a2, e15a2, e1a3, e6a3, e8a3, e13a3, e14a3, and e19a3) in LCML, LAML, and acute lymphocytic leukemia (ALL, Fig. 4b).