However, as observed with the GSE34861 published study, the six gene based classification was also particularly informative in the case of the B-ALL patients without the BCR.ABL translocation, since, for these patients, belonging to the “P3” group, means a significantly poorer prognostic than belonging to the P1&2 group (Figure 5C). The gene discussed is BCR; the disease is acute lymphoblastic leukemia.