MARS2 and lung carcinoma: To assess the possible correlation of MARS2 and cancer, we compared the MARS2 expression levels of 4 normal lung cells (IMR90, MRC-5, primary small airway epithelial cells, and WI-38) and 12 lung cancer cell lines (A549, Calu-1, Calu-3, ChaGo-k1, EKVX, HOP92, H322, H322M, H460, H520, H522, H1299) (Fig. 6i).