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Documentos Principais

T9128

Sigma-Aldrich

Trypsin inhibitor

lyophilized powder, suitable for inhibition assay

Sinônimo(s):

SBTI

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About This Item

Número CAS:
Número CE:
Número MDL:
Código UNSPSC:
12352202
NACRES:
NA.77
Preço e disponibilidade não estão disponíveis no momento.

Nome do produto

Trypsin inhibitor from Glycine max (soybean), lyophilized powder

fonte biológica

Glycine max (soybean)

Nível de qualidade

tipo

Type II-S

Formulário

lyophilized powder

peso molecular

20,100 Da

técnica(s)

inhibition assay: suitable

solubilidade

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

Condições de expedição

ambient

temperatura de armazenamento

2-8°C

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Ações bioquímicas/fisiológicas

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.

Componentes

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

Definição da unidade

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.

Nota de preparo

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.

Nota de análise

One mg of trypsin inhibitor will inhibit a minimum of 1.0 mg Trypsin of activity ~10,000 BAEE units/mg trypsin.

Pictogramas

Health hazard

Palavra indicadora

Danger

Frases de perigo

Classificações de perigo

Resp. Sens. 1 - Skin Sens. 1

Código de classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)


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Dolores D Mruk et al.
Methods in molecular biology (Clifton, N.J.), 763, 237-252 (2011-08-30)
The use of an in vitro system based on primary cultures of Sertoli cells isolated from rat testes has greatly facilitated the study of the blood-testis barrier in recent years. Herein, we summarize the detailed procedures on the isolation of
I T Padol et al.
Infection and immunity, 69(6), 3891-3896 (2001-05-12)
As a bacterial product, Helicobacter pylori lipopolysaccharide (LPS) can originate in close proximity to parietal cells, but the role of this uniquely structured endotoxin on acid secretion has not been fully investigated and remains unclear. The purpose of this study
Ho Am Jang et al.
Developmental and comparative immunology, 67, 97-106 (2016-11-09)
Riptortus pedestris, a common pest in soybean fields, harbors a symbiont Burkholderia in a specialized posterior midgut region of insects. Every generation of second nymphs acquires new Burkholderia cells from the environment. We compared in vitro cultured Burkholderia with newly in vivo
Patrik Hollos et al.
eNeuro, 7(1) (2020-01-16)
In this study, we use an optogenetic inhibitor of c-Jun NH2-terminal kinase (JNK) in dendritic spine sub-compartments of rat hippocampal neurons. We show that JNK inhibition exerts rapid (within seconds) reorganization of actin in the spine-head. Using real-time Förster resonance
Graeme S Cottrell et al.
Gastroenterology, 132(7), 2422-2437 (2007-06-16)
We studied the role of protease-activated receptor 2 (PAR(2)) and its activating enzymes, trypsins and tryptase, in Clostridium difficile toxin A (TxA)-induced enteritis. We injected TxA into ileal loops in PAR(2) or dipeptidyl peptidase I (DPPI) knockout mice or in

Protocolos

This technical article described the Enzymatic Assay of Trypsin Inhibitor.

Chromatograms

application for HPLC

Questions

1–2 of 2 Questions  
  1. What is the Department of Transportation shipping information for this product?

    1 answer
    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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  2. What is the molecular weight and amino acid sequence of trypsin inhibitor from Glycine max (soybean)?

    1 answer
    1. Soybean trypsin inhibitor is a mixture of the three types. We have not characterized our trypsin inhibitor products in terms of how much of each of the three types may be present. All three have a molecular weight of between 20,000 and 20,200 daltons, so one might use 20,100 daltons as an average.The three types vary in the amino acids at a few positions. The detailed summary of the three types (or variants) was published in the following linked reference:     J. Biochem. (Japan), 98, 435-448 (1985).Note that the authors use Tia, Tib and Tic to indicate the three variants.

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