Figure 3
From: Modification of Cul1 regulates its association with proteasomal subunits

Co-purification of SCF subunits with proteasomes. Lane 1 contains purified 26S proteasomes, lane 2 contains purified 19S proteasomes, lane 3 contains purified 20S proteasomes and lane 4 contains whole cell lysate from Hela cells. Purified proteasomes and protein extracts were analyzed by immunoblotting with the antibodies to the indicated proteins.