HEK293T cells, an established model for proteomic studies and for studying EGFR‐related processes,[18] were stably transfected with FLAG‐tagged EGFR/L858R, the most frequent mutation in NSCLC.[19] Cellular extracts were subjected to affinity purification using anti‐FLAG affinity columns, and the bound proteins were analyzed by mass spectrometry. This evidence concerns the gene EGFR and non-small cell lung carcinoma.