Preliminary crystallographic data for Bowman-Birk inhibitor from soybean seeds.

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Preliminary crystallographic data for Bowman-Birk inhibitor from soybean seeds.

A well characterized soybean protease inhibitor, the Bowman-Birk inhibitor, has been crystallized at room temperature in the presence of polyethylene glycol 4000 by vapor diffusion against an ammonium sulfate solution containing 2-methyl-2,4-pentanediol. An x-ray diffraction study reveals that the inhibitor crystallizes in a hexagonal unit cell of symmetry P6122 (or P6522) and dimensions a = b ...

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Purification and Characterization of Bowman-Birk Trypsin Inhibitor from Soybean

In this paper, crude extract of a Bowman-Birk trypsin inhibitor from soybean meal was firstly isolated by a combination of alcohol precipitation, thermal denaturation, isoelectric precipitation and acetone precipitation. Then this extract was purified by DE-52 ion exchange and affinity chromatography. The results showed that soybean Bowman-Birk trypsin inhibitor (SBBI) was purified to 50.07-fol...

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Isolation and Characterization of Trypsin Inhibitors (Kunitz Soybean Trypsin Inhibitor, Bowman-birk Inhibitor) in Soybean

Soybean (Glycine max (L.) Merr.) has emerged as one of the most economical and nutritious foods. Kunitz Soybean Trypsin Inhibitor (KSTI) and Bowman -Birk Inhibitor (BBI) are the two major trypsin inhibitors in soybeans. The ingested soybean trypsin inhibitors cause growth depression as demonstrated in different animal species and human. The main part of the present study was devoted to isolatio...

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Detection of Bowman-Birk inhibitor and anti-Bowman-Birk inhibitor antibodies in sera of humans and animals treated with Bowman-Birk inhibitor concentrate.

The Bowman-Birk inhibitor (BBI) is a soybean-derived serine protease inhibitor with anticarcinogenic activities. BBI, in the form of BBI concentrate (BBIC), is currently being evaluated in clinical trials as a human cancer-preventive agent. In the present study, an enzyme-linked immunosorbent assay was used to measure BBI concentrations in serum samples collected from human subjects and animals...

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Bowman-Birk protease inhibitor from Vigna unguiculata seeds enhances the action of bradykinin-related peptides.

The hydrolysis of bradykinin (Bk) by different classes of proteases in plasma and tissues leads to a decrease in its half-life. Here, Bk actions on smooth muscle and in vivo cardiovascular assays in association with a protease inhibitor, Black eyed-pea trypsin and chymotrypsin inhibitor (BTCI) and also under the effect of trypsin and chymotrypsin were evaluated. Two synthetic Bk-related peptide...

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ژورنال

عنوان ژورنال: Journal of Biological Chemistry

سال: 1979

ISSN: 0021-9258

DOI: 10.1016/s0021-9258(17)30095-9