Samples 1–15 are BCR-ABL, 16–42 are E2A-PBX1, 43–106 Hyperdiploid > 50, 107–126 MLL, 206–248 T-ALL, 249–327 TEL-AML1, 328–335 Group23 and 127–205 are labelled as Others. Some groupings, such as E2A-PBX1, are very distinct. The gene discussed is PBX1; the disease is acute lymphoblastic leukemia.