Gene Expression Profiling Interactive Analysis (GEPIA) showed lower OGA expression in lung adenocarcinoma (LUAD), lung squamous cell carcinoma (LUSC), and glioblastoma multiforme (GBM) compared to standard samples, indicating increased O-GlcNAcylation in tumors (Fig. 1L). The gene discussed is OGA; the disease is squamous cell lung carcinoma.