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T9003

Sigma-Aldrich

Trypsin inhibitor from Glycine max (soybean)

lyophilized powder

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Synonym(s):
SBTI
CAS Number:
EC Number:
MDL number:
NACRES:
NA.54

biological source

Glycine max (soybean)

Quality Level

form

lyophilized powder

mol wt

20.1 kDa

solubility

H2O: >10 mg/mL
phosphate buffer: >10 mg/mL (hazy above 10 mg/ml)
soluble

application(s)

diagnostic assay manufacturing

storage temp.

2-8°C

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This Item
T9767T2327T9128
form

lyophilized powder

form

powder

form

lyophilized powder

form

lyophilized powder

mol wt

20.1 kDa

mol wt

20,000 Da

mol wt

-

mol wt

20,100 Da

solubility

H2O: >10 mg/mL, phosphate buffer: >10 mg/mL (hazy above 10 mg/ml), soluble

solubility

balanced salt solution: 1 mg/mL, concentrate: >10 mg/mL, hazy, amber-yellow, phosphate buffer: 10 mg/mL, water: 10 mg/mL, serum-free medium: soluble

solubility

-

solubility

balanced salt solution: 1 mg/mL, concentrate: >10 mg/mL, hazy, amber-yellow, phosphate buffer: 10 mg/mL, water: 10 mg/mL, serum-free medium: soluble

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

Quality Level

300

Quality Level

200

Quality Level

200

Quality Level

300

Application

Trypsin has been used in a study to assess the potential application in animal cell culture of an alkaline protease from a non-toxigenic mangrove isolate of Vibrio sp. V26. Trypsin has also been used in a study to improve the detection of fungi in eosinophilic mucin.

Biochem/physiol Actions

This inhibitor acts against trypsin, and chymotrypsin and plasmin to a lesser extent. It will also inhibit proteases with mechanisms similar to trypsin, plasma kallikrein and coagulation Factor X. The trypsin inhibitor will not act against metalloproteases, tissue-baseed kallikrein, acid proteases, or thio proteases. This inhibitor acts by forming a 1:1 stoichiometric complex with the protease active site, and then cleaving a single arginine-isoleucine bond on the inhibitor. The inhibition is both reversible and pH dependent.

Components

The soybean trypsin inhibitor is a monomeric protein containing 181 amino acid residues in a single polypeptide chain crosslinked by two disulfide bridges.

Unit Definition

One trypsin unit = A253 of 0.001 per minute with N-alpha-benzoyl-L-arginine ethyl ester (BAEE) as substrate at pH 7.6 at 25 °C.
One trypsin unit will produce a 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.

Preparation Note

The trypsin inhibitor is soluble in water and phosphate buffers at 10 mg/mL. It is soluble in balanced salt solutions at 1 mg/mL and in serum-free media. Concentrated solutions greater than 10 mg/mL may be hazy and have a yellow to amber color. After trypsinizing cells, resuspend in 1 mL trypsin inhibitor solution at 1 mg/mL for every mL of trypsin solution used for dissociation. The cell suspension should then be centrifuged at 1000 rpm, forming a cell pellet.

Solutions can retain activity when stored short-term at 2-8° C. Solutions are stable in frozen aliquots at -20°C.

Analysis Note

One mg of trypsin inhibitor will inhibit 1.0-3.0 mg trypsin of activity ~10,000 BAEE units per mg protein.

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Hazard Classifications

Resp. Sens. 1 - Skin Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Frank Helle et al.
American journal of physiology. Renal physiology, 298(5), F1170-F1177 (2010-03-12)
Inhibition of nitric oxide synthesis (NOS) induces hypertension and heavy proteinuria. Renal structure and function have shown striking improvement after interventions targeting ANG II or endothelin (ET) receptors in rats recovering after long-term NOS inhibition. To search for mechanisms underlying
Alkaline protease from a non-toxigenic mangrove isolate of Vibrio sp. V26 with potential application in animal cell culture
Manjusha, K., et al.
Cytotechnology, DOI: 10-DOI: 10 (2012)
Hermann Bultmann et al.
Antimicrobial agents and chemotherapy, 54(10), 4275-4289 (2010-07-21)
The linear cationic amphiphilic EB peptide, derived from the FGF4 signal sequence, was previously shown to be virucidal and to block herpes simplex type I (HSV-1) entry (H. Bultmann, J. S. Busse, and C. R. Brandt, J. Virol. 75:2634-2645, 2001).
Joshua K Endow et al.
PloS one, 11(12), e0167802-e0167802 (2016-12-10)
PolyGly is present in many proteins in various organisms. One example is found in a transmembrane β-barrel protein, translocon at the outer-envelope-membrane of chloroplasts 75 (Toc75). Toc75 requires its N-terminal extension (t75) for proper localization. t75 comprises signals for chloroplast
Joelle M-J Romac et al.
Nature communications, 9(1), 1715-1715 (2018-05-02)
Merely touching the pancreas can lead to premature zymogen activation and pancreatitis but the mechanism is not completely understood. Here we demonstrate that pancreatic acinar cells express the mechanoreceptor Piezo1 and application of pressure within the gland produces pancreatitis. To

Protocols

This technical article described the Enzymatic Assay of Trypsin Inhibitor.

Chromatograms

application for HPLC

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