Figure 3.

Enzymatic digests of PRPg2. AtT-20 cells expressing PRPg2 alone or PRPg2 and basic PRP were labeled with 0.25 mCi/ml [³⁵S]sulfate for 3 h with enzymes, as described in MATERIALS AND METHODS, and immunoprecipitated. Cont, control; Ch, chondroitinase AC; H, heparinase III. The asterisk indicates the position of the PRPg2 core. The lanes in the right panel were loaded with one-fourth of the material that was loaded for samples shown in the left panel.