To demonstrate whether the anti-Myo1g mAb recognized endogenous Myo1g in human and mouse cells, we performed WB analysis with lysates of spleen cells from C57BL/6 WT and Myo1g KO mice, and from Jurkat (human T-ALL) and RS4-11 (human B-ALL) cell lines. The gene discussed is MYO1G; the disease is acute lymphoblastic leukemia.