Voprosy meditsinskoi khimii (ISSN 0042-8809)

Antitrypsin effects of alpha-2-macroglobulin

Serkhan V., Shcherbak I.G.
PubMed Id: 1706121
Year: 1990 vol: 36  issue:6  pages: 47-50
Abstract: Purified preparations of alpha 2-macroglobulin were preincubated with bovine trypsin at various molar ratios. Effects of the preincubation were measured before and after addition of soybean trypsin inhibitor in excess if N-benz-L-arg-p-nitroanilide was used as a substrate. Two types of interaction between alpha 2-macroglobulin and trypsin were detected. One of them was carried out depending on the 'trap' hypothesis, another type of the interaction led to the enzyme loss of both proteolytic activity and its ability to hydrolyze the low molecular substrate. The data obtained suggest that various molecular forms of native alpha 2-macroglobulin were responsible for these types of interaction.
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Reference: Serkhan V., Shcherbak I.G., Antitrypsin effects of alpha-2-macroglobulin, Voprosy meditsinskoi khimii, 1990, vol: 36(6), 47-50.