PRDX1 was found to be upregulated in a panel of gastrointestinal cancers including colorectal cancer (COAD, READ, and COADREAD), stomach and esophageal carcinoma (STES), stomach adenocarcinoma (STAD), and pancreatic adenocarcinoma (PAAD) using Sangerbox (http://vip.sangerbox.com/home.html) (Figure S1A). The gene discussed is PRDX1; the disease is pancreatic adenocarcinoma.