Of the 99 patients with B-ALL, 23 expressed Ik6 and/or Ik8 isoforms, 16 of them were Ik6+, 5 were Ik8+, 1 patient expressed both Ik6 and Ik8 isoforms, and 1 patient showed a variant of Ik8 (Table 1). The gene discussed is KCNF1; the disease is acute lymphoblastic leukemia.