By analyzing data from the Cancer Therapeutics Response Portal (CTRP; http://portals.broadinstitute.org/ctrp/) and evaluating correlations between TMEM189 gene expression profiles across 654 cancer cell lines and cell sensitivities to ferroptosis-inducing agents, we found that TMEM189 was strongly correlated with resistance to ferroptosis inducers (Fig. 6a). The gene discussed is PEDS1; the disease is cancer.