Impact of SIRT1 knockout on selected cellular pathways and protein complexes. SIRT1 modulates acetylation levels on (A) the subunits of the long-patch base excision repair (BER) complex in the DNA repair pathway, (B) Notch co-activator and corepressor complexes in the Notch signaling pathway, (C) the RNA spliceosome in the RNA splicing pathway, (D) the Brd4-PTEFb complex, (E) the NuA4-Kat5 (Tip60) complex, and (F) the Kat7 (Hbo1) protein complex. Each gene is color-coded based on the highest SILAC KO/WT ratios for the gene.