Among these cases, the deletion ratios of subunits (i.e., SAMRCA2, SMARCA4, ARID1A, and ARID1B) in NSCLC are 9.3%, 1.8%, 1.2%, and 0.4%, respectively, with evidence of codeficiency of different subunits. The gene discussed is ARID1B; the disease is non-small cell lung carcinoma.