(2020) found that ferroptosis is an important pathway causing colonic epithelial cell death in ulcerative colitis (UC), and that the endoplasmic reticulum stress marker molecule GRP78, as well as the PERK‐ATF4‐CHOP pathway, are important in the death of colonic epithelial cells in UC. The gene discussed is EIF2AK3; the disease is ulcerative colitis.