Intriguingly, in B-ALL cell line MHH-CALL-4, 214 reads of nonproductive TCR (TRAV8–2-TRAJ8) and 163 reads of nonproductive BCR (IGHV2–26-IGHD2–21-IGHJ5) rearrangements were detected. The gene discussed is GH1; the disease is acute lymphoblastic leukemia.