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Merck

T9777

Trypsin-chymotrypsin inhibitor

lyophilized powder

Synonyme(s) :

Bowman-Birk Inhibitor

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A propos de cet article

Numéro CAS:
UNSPSC Code:
12352202
NACRES:
NA.77
MDL number:
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Nom du produit

Trypsin-chymotrypsin inhibitor from Glycine max (soybean), lyophilized powder

biological source

Glycine max (soybean)

form

lyophilized powder

composition

Protein, 70-90% biuret

storage temp.

2-8°C

Quality Level

Analysis Note

1 mg protein will inhibit ≥0.5 mg trypsin with activity of ~10,000 BAEE units per mg protein or ≥1.0 mg chymotrypsin with activity of ~40 BTEE units per mg protein.

Application

Bowman Birk protease inhibitor prevents radiation-induced carcinogenesis by a reduction of incorrect DNA repairs, resulting in a reduced amount of dicentric chromosomes.
Trypsin-chymotrypsin inhibitor from Glycine max (soybean) has been used for flow cytometric separase activity assay. It has also been used to inhibit trypsin and chymotrypsin for in vitro gastrointestinal (GI) digestion studies.

General description

Highly cross-linked with seven disulfide bridges, Bowman-Birk inhibitor has spatially distinct domains for trypsin and chymotrypsin inhibition.
Trypsin-chymotrypsin inhibitor belongs to the family of plant protease inhibitors. It is mainly found in the legume (Fabaceae) and cereal (Poaceae) families. Trypsin-chymotrypsin inhibitor consists of many internal disulfide bonds between conserved Cys residues, which maintains structural stability and active conformation of the inhibitory loops. Trypsin-chymotrypsin has anticarcinogenic properties.

Other Notes

One trypsin unit = ΔA253 of 0.001 per min with BAEE as substrate at pH 7.6 at 25 °C. Reaction volume = 3.2 mL (1 cm light path).
View more information on Trypsin Inhibitor.

Physical form

Lyophilized powder containing phosphate buffer salts, pH 7.6

Classe de stockage

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Consulter la Bibliothèque de documents

Evidence for ancient origins of Bowman-Birk inhibitors from Selaginella moellendorffii
James AM, et al.
Plant Cell, 29(3), 461-473 (2017)
Alfonso Clemente et al.
Molecular nutrition & food research, 54(3), 396-405 (2009-11-04)
Bowman-Birk inhibitors (BBI) from soybean and related proteins are naturally occurring protease inhibitors with potential health-promoting properties within the gastrointestinal tract. In this work, we have investigated the effects of soybean BBI proteins on HT29 colon adenocarcinoma cells, compared with
Ellen K Ulleberg et al.
Food digestion, 2(1-3), 52-61 (2012-05-05)
The aim of this study was to characterise the individual human gastric and duodenal juices to be used in in vitro model digestion and to examine the storage stability of the enzymes. Gastroduodenal juices were aspirated, and individual variations in
Increased separase activity and occurrence of centrosome aberrations concur with transformation of MDS
Ruppenthal S, et al.
PLoS ONE, 13(1), e0191734-e0191734 (2018)
Epitopes resistance to the simulated gastrointestinal digestion of beta-lactoglobulin submitted to two-step enzymatic modification
Villas-Boas M, et al.
Food Research International, 72, 191-197 (2015)

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