Expression of the EHZF mRNA in human tissues. Northern blots from Clontech containing 5 μg polyA+ mRNA from different human tissues were hybridized sequentially with probes for EHZF (exposed for 5 days), OAZ (exposed for 10 days), and then actin (exposed for 24 hours). The migration of the major EHZF band corresponds to a size of approximately 5.5 kb, consistent with that observed in CD34⁺ cells and hematopoietic cell lines. Numbers on the right indicate kb.