SEARCH Articles Figures Tables I inhibitors Inhibitors types Potato inhibitor Potato type I serine protease inhibitor Af4 gene product Potato type I serine protease inhibitor effects on cathepsin Potato type I serine protease inhibitor effects on chymotrypsin Potatoes protease inhibitor Protease inhibitors potato type Serin proteases Serine inhibitor Serine protease Serine protease inhibitor Serine proteases protease inhibitors