Out of which six genes were further validated in additional resistant (>1% BCR-ABL copies in CML-CP-UT, CML-AP-UT, CML-B-UT,) and sensitive (undetectable levels BCR-ABL copies in CML-CP-UT) cases. The gene discussed is ABL1; the disease is chronic myelogenous leukemia, BCR-ABL1 positive.