the enzyme was isolated as an apparently homogeneous protein from pooled samples of active lung lymph , after an almost 9000-fold purification by affinity chromatography on columns of reactive blue 2-agarose , aprotinin-agarose , and p-aminobenzamidine-agarose , and chromatography on a column of sephadex g-100 .
C0033684
protein
C0003641
aprotinin