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P0609

Sigma-Aldrich

Pepsin−Agarose from porcine gastric mucosa

lyophilized powder, ≥30 units/mg dry solid

Sinónimos:

Pepsin A

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About This Item

Comisión internacional de enzimas:
3.4.23.1 (BRENDA, IUBMB)
Número MDL:
MFCD00081840
Código UNSPSC:
12352204
NACRES:
NA.54

origen biológico

Porcine gastric mucosa

Nivel de calidad

200

formulario

lyophilized powder

actividad específica

≥30 units/mg dry solid

mol peso

35 kDa

matriz

4% cross-linked beaded agarose

Nº de acceso UniProt

P00791

temp. de almacenamiento

−20°C

Información sobre el gen

pig ... LOC396892(396892)

Descripción general

Pepsin is an enzyme found in gastric secretion.

Aplicación

Pepsin immobilized onto agarose beads can be used to digest and then separate out the active peptides of the glycoprotein gliadin.
Pepsin-agarose has been used as an immobilization tool to investigate the refolding ability of the pepsin enzyme. It has also been used for the preparation of F(ab′)2 fragments from rabbit IgG.
Used to produce F(ab′)2 fragments of antibodies.1

Acciones bioquímicas o fisiológicas

Preferentially cleaves C-terminal to Phe, Leu and Glu. It does not cleave at Val, Ala or Gly. pH optimum 2-4. Active in 4 M urea and 3 M guanidine HCl. Stable at 60 °C. Pepsin is irreversibly inactivated at pH > 6.

Definición de unidad

One unit will produce a ΔA280 of 0.001 per min at pH 2.0 at 37 °C, measured as TCA-soluble products using hemoglobin as substrate. (Final volume = 16 mL. Light path = 1 cm.)

Cantidad

One gram solid swells to 5-10ml packed gel.

Forma física

Lyophilized powder stabilized with lactose

inhibidor

Referencia del producto
Descripción
Precios

P5318

Pepstatina A, microbial, ≥90% (HPLC)

P7626

Fluoruro de fenilmetansulfonilo, ≥98.5% (GC)

Pictogramas

Health hazard
GHS08

Palabra de señalización

Danger

Frases de peligro

H334

Clasificaciones de peligro

Resp. Sens. 1

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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M Feldman et al.
Gastroenterology, 110(4), 1043-1052 (1996-04-01)
Recent studies suggesting that gastric secretion does not decrease with aging included few elderly individuals and measured only acid secretion. The aims of this study were to measure gastric acid and pepsin output in 206 health Americans (age range, 18-98
Ludmila Tucková et al.
Journal of leukocyte biology, 71(4), 625-631 (2002-04-03)
Celiac disease, induced by dietary gluten, is characterized by mucosal atrophy and local inflammation associated with cell infiltration and activation. Unlike other food proteins, gluten and its proteolytic fragments, besides inducing a specific immune response, were shown to activate components
Thomas A Kraus et al.
The Journal of clinical investigation, 115(8), 2234-2243 (2005-07-26)
To explore the requirement for M cells and the Peyer's patch (PP) in induction of oral tolerance and address the potential in vivo role of intestinal epithelial cells as nonprofessional APCs, we have attempted to induce tolerance in mice with
Hana Dvořáková et al.
Frontiers in cellular and infection microbiology, 10, 66-66 (2020-03-17)
Schistosomula (the post-infective stages) of the neurotropic schistosome Trichobilharzia regenti possess multiple isoforms of cathepsin B1 peptidase (TrCB1.1-TrCB1.6) with involvement in nutrient digestion. The comparison of substrate preferences of TrCB1.1 and TrCB1.4 showed that TrCB1.4 had a very narrow substrate
Gastric proteinases--structure, function, evolution and mechanism of action.
B Foltmann
Essays in biochemistry, 17, 52-84 (1981-01-01)
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Protocolos

Enzymatic Assay of Pepsin (3.4.23.1)

This procedure may be used for determination of Pepsin activity using hemoglobin as the substrate. It is a spectrophotometric stop rate determination.

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