In a recent study, using next-generation sequencing we found that OR51B5 is the most highly expressed OR in the chronic myelogenous leukemia cell line K562.11 Here, we validated the expression of OR51B5 by reverse transcription (RT)-PCR and immunocytochemical stainings (Figure 1a). Here, OR51B5 is linked to chronic myelogenous leukemia, BCR-ABL1 positive.