Figure 3.

Neutrophil elastase (NE) degrades recombinant proteins which constitute HLA class II. Recombinant (r) HLA-DP α1, rHLA-DP β1, rHLA-DQ α1, rHLA-DQ β1, rHLA-DR α, and rHLA-DR β1 were treated with 300 mU/mL hNE at 37 °C for 3 h. All samples were separated by SDS-PAGE followed by Coomassie brilliant blue staining.