We obtained fatty acids (FAs) from Nu-Chek Prep, Inc.; radiolabeled S-35 methionine from Perkin-Elmer (cat. no. NEG709A500UC); SCD1 inhibitor (A939572; cat. no. 19123), Nonidet P-40 (NP-40; cat. no. 600009) and Protein Synthesis kit (cat. no. 601100) from Cayman Chemicals; rabbit anti-YB-1 from ProteinTech; mouse anti-β-actin from Millipore Sigma; rabbit anti-SCD1 from Cell Signal; YB-1-myc plasmid from Addgene; non-targeting control siRNA and YB-1 siRNAs from Qiagen; FA-free BSA from Sigma-Aldrich; Protease inhibitor cocktail from Roche; Fetal Calf serum (FCS) and Delipidated fetal calf serum (DFCS) from Gemini Bio. All FAs added into culture media were conjugated to BSA as previously reported (10 (link)).