Update publication information. The epididymal adipose tissue (eWAT) samples from wild type mice fed high-fat diet for 12 weeks (H_WT_E) and Mdm2 adipocyte-specific knock-in mice fed high-fat diet for 12 weeks (H_KI_E) were mixed separately, and subjected to ubiquitinome study by Label-free quantification and ubiquitination modification enrichment techniques, etc. The proteomics of mixed eWAT samples were performed in Jingjie PTM BioLab (Hangzhou) Co. Ltd (www.ptm-biolab.com.cn). The difference was determined by 1.5-fold-change criterion, FDR < 0.01.