We examined the ratioof KRAS:PDE6D in three lung cancer cell linesthat had the highest KRAS levels among the cells analyzed (A549, H358,and H2009), as well as two cell lines with low KRAS levels but seeminglyhigher levels of PDE6D than KRAS (Daoy and Jurkat). The gene discussed is KRAS; the disease is lung carcinoma.