E5144

Enterokinase from bovine intestine

powder

• Synonyme(s) : Enteropeptidase
• CAS Number: 9014-74-8
• Numéro CE : 3.4.21.9 (BRENDA, IUBMB)
• Numéro CE : 232-761-1
• Numéro MDL: MFCD00131020
• Code UNSPSC : 12352204
• eCl@ss : 32160410
• Nomenclature NACRES : NA.56

Propriétés

• Source biologique: bovine intestine
• Niveau de qualité: 200
• Forme: powder
• Poids mol.: 150 kDa (consisting of 115kDa and 35kDa subunits.)
• Couleur: white
• Conditions d'expédition: dry ice
• Température de stockage: −20°C

Description

Description générale

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.

Actions biochimiques/physiologiques

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.

Conditionnement

Supplied with optimized enterokinase buffer

Définition de l'unité

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.

Autres remarques

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

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Gloves, type N95 (US)