Fig. 2

Protein modification analysis in the old and young groups of mice. A–F) Protein modification levels in the young and old groups; from left to right: acetyllysine, succinyllysine, crotonyllysine, 2-hydroxyisobutyryllysine, malonyllysine, and lactyllysine. G) Heatmap of the Pearson correlations between GCs in the old and young groups. H) Volcano map showing differentially acetylated modification sites. I) KEGG pathway analysis of differentially acetylated modification proteins