Figure 4 showed that 4.8% of CD3+CD8+ cells expanded by CXorf4849–57 peptide highly expressed CD107a when incubated with CD34+ BMMNCs from CML patients. Those CTLs did not recognize CD34− BMMNCs from the same donor nor K562 cells. This evidence concerns the gene CD8A and chronic myelogenous leukemia, BCR-ABL1 positive.