Updated project metadata. This report provides data on ferroptosis induced proteomic response in immortalized mouse embryonic fibroblasts which are 4-OH-TAM-inducible Gpx4−/− (referred to as Pfa1 cells). Pfa1 cells are a valuable, widespread and well characterized model for ferroptosis research. We used ML210 (SML0521, Sigma-Aldrich) to induce ferroptosis and collected samples at 0h, 24h and 48 h after treatment. Untreated cells were used as a control. Pfa1 cells (kind gift from Marcus Conrad, Munich) were cultured in RPMI-1640 media (2 g/L glucose, 10% FBS, 2 mM Gibco GlutaMAX Supplement, 1% pen/strep) at 37C with 5% CO2 in a humidified incubator. Cells (300k) were seeded on Corning 100 mm tissue-culture treated culture dishes and incubated overnight. On the next day Pfa1 cells were treated with or without 0.3 µM ML210.