As expected, expression levels of CD203c were higher on CD123+/FcεRIαhigh (more mature) BM basophils than on CD123+/FcεRIαlow (presumably more immature) BM basophils (Figure 1F) in the CML samples tested. This evidence concerns the gene ENPP3 and chronic myelogenous leukemia, BCR-ABL1 positive.