However we can check genes SEMA3F and GNAI2 that are located in the same LUCA sub-region as NPRL2 and RASSF1A. We tested how often deletions and methylations occurred in the same NSCLC sample at both LUCA and AP20 sub-regions and found that this occurred in 58% of all studied cases (15 of 26). The gene discussed is SEMA3F; the disease is non-small cell lung carcinoma.