However, we failed to observe any GFP+ tumour in Krt5 mice (0 out of 130 analysed tumours), suggesting that neither Basal cells from upper airways nor AT1 cells contributed to Eml4-Alk LUAD initiation (Fig. 3c, Supplementary Fig. 3b and Supplementary Table 3). The gene discussed is EML4; the disease is neoplasm.