Recombinant bovine enteropeptidase, Tag free

• Synonyms:

  EK

• Expression System:

  E.coli

• Tag:

  Tag free

• Endotoxin:

  < 1.0 EU per μg of the protein as determined by the LAL method.

• Purity:

  > 95% as determined by SDS-PAGE.

• Length:

  235

• Form:

  Liquid

• Buffer:

  10 mM Tris-HCL, 2 mM CaCL2, 100 mM Nacl, 50 % glycerol, pH 7.2

• Molecular Weight:

  26.2 kDa

• Storage Conditions:

  Stable for 1 year at -20°C or below from date of shipment. For maximum recovery of product, centrifuge the original vial after thawing and opening the cap. For long-term storage, aliquot and store at -20°C or below. Avoid repeated freeze-thaw cycles.

• Symbol:

  EK

• Species:

  Bovine

• Overview:

  EK is the catalytic subunit of bovine enterokinase, which is expressed by E. coli and purified to yield a high enzyme activity preparation. EK recognizes the sequence Asp-Asp-Asp-Asp-Lys (DDDDK) and cleaves the peptide bond after the lysine residue. We have directional protein refolding technology (LeaBioFOLD) and self-developed technology platforms for proteins covering screening and purification, engineering design, fixed-point coupling design, and dosage form development. Protein refolding is a process of recovering protein aggregates in inclusion bodies in the form of misfolded and inactive proteins expressed by prokaryotes such as Escherichia coli back into proteins with correct conformation and bioactivity under appropriate conditions in vitro. It is a key technology for biopharmaceutical companies but a major bottleneck in protein production in prokaryotic expression systems. Leading Biology has been specializing in protein refolding for many years, has a core team with over ten years of experience in this technology and rich experience in its industrialization. Our team is summarizing the experience to form an independent technological system of ours.