RT-PCR-SSCP analyses of exons 3, 4, 5, and 6 of the

AML1 gene in patients with MDS. (A) An abnormal migrating band was detected in lane 3 (a case with CMMoL) in addition to bands with normal mobility. (B) Abnormal migrating bands were detected in lane 3 (a case with AML secondary to MDS). The other lanes are also derived from the cDNA samples of MDS patients. Shifted bands are marked with arrows.