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Merck

E5144

Sigma-Aldrich

Enterokinase from bovine intestine

powder

Sinónimos:

Enteropeptidase

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About This Item

Número de CAS:
Comisión internacional de enzimas:
EC Number:
MDL number:
UNSPSC Code:
12352204
eCl@ss:
32160410
NACRES:
NA.56

biological source

bovine intestine

Quality Level

form

powder

mol wt

150 kDa (consisting of 115kDa and 35kDa subunits.)

color

white

shipped in

dry ice

storage temp.

−20°C

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General description

Enterokinase also referred to as enteropeptidase, is a transmembrane protein. This intestinal protease contains a heavy chain and a light chain linked by a disulfide bond. The amino-terminal sequence of the bovine enteropeptidase is homologous to trypsin-like serine proteases. Enterokinase is a highly specific serine protease that is used for the removal of the FLAG peptide from N-terminal and Met-N-terminal fusion proteins. It does not remove the C-terminal FLAG.

Application

Enterokinase from bovine intestine has been used to remove S-Tag and N-terminal His-tag from recombinant glutathione peroxidase 1 (Gpx1). It has also been used to cleave interleukin-2 (IL-2) protein from the granules
Enterokinase is a member of the S1 peptidase family. In vivo, it is responsble for the proteolytic activation of trypsin from trypsinogen. Enterokinase is used for site specific cleavage of recombinant fusion proteins containing an accessible enterokinase recognition site for removal of affinity tags.

Biochem/physiol Actions

Enterokinase catalyzes the proteolytic activation of pancreatic proteases. This action prevents the harmful tissue damage produced by the autoactivation of pancreatic proteases in the pancreas. Enterokinase recognizes Lys or Arg residues in the peptide. Lack of enterokinase can harm food digestion and absorption mechanism. Enterokinase is a highly specific serine protease that is used for the removal of the FLAG peptide from N-terminal and Met-N-terminal fusion proteins. It does not remove the C-terminal FLAG.

Packaging

Supplied with optimized enterokinase buffer

Unit Definition

One unit is that amount of enterokinase which results in >95% cleavage of 1 µg of purified FLAG-BAP fusion protein in 18 hours at 37 °C. One FLAG-BAP unit is equal to 10x the activity of a standard trypsinogen unit.

Other Notes

Do not used PVDF since free FLAG peptide will bind to the PVDF membrane.

substrate

Referencia del producto
Descripción
Precios

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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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