[Inhibition of elastin hydrolysis, catalyzed by human leukocyte elastase and cathepsin G, by the Bowman-Birk type soy inhibitor]

Abstract

Cathepsin G stimulates the hydrolysis of elastin from bovine neck ligament catalyzed by human leukocyte elastase. Stimulation factor depends on the ratio of the enzyme concentrations and ionic strength and equals 1.0-2.0. The classical Bowman-Birk inhibitor from soya retards strongly the hydrolysis of elastin catalyzed by leukocyte elastase, cathepsin G and the mixture of both. The inhibitory effect is practically unaffected by the adsorption of the enzymes on elastin, prolongation of the enzymatic reaction and ionic strength.