A role of DAZAP1 in transcription is also supported by the exclusion of DAZAP1 from the transcriptionally inactive XY bodies in pachytene spermatocytes (12) and the fusion of DAZAP1 to the MEF2D oncogene in a pre-B acute lymphoblastic leukaemia (14,15), and warrants further investigation. This evidence concerns the gene DAZAP1 and acute lymphoblastic leukemia.