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Recombinant Human Kallikrein 1 Protein, CF

Bio-Techne includes R&D Systems | Catalog # 2337-SE

Catalog #
Size / Price

Key Product Details



Accession #

Structure / Form

Pro form




Enzyme Activity

Product Specifications


Mouse myeloma cell line, NS0-derived human Kallikrein 1 protein
Ile25-Ser262, with an N-terminal human KLK-5 propeptide (Val23-Arg66) and a C-terminal 10-His tag


>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.

Endotoxin Level

<1.0 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Val23 (KLK-5 propeptide, Accession # Q9Y337)

Predicted Molecular Mass

32 kDa


41 kDa, 45 kDa, 49 kDa and 56 kDa, reducing conditions


Measured by its ability to cleave a flourogenic peptide substrate Pro-Phe-Arg-7-amido-4-methylcoumarin (PFR-AMC).
The specific activity is >1,500 pmol/min/µg, as measured under the described conditions.

Formulation, Preparation and Storage

Formulation Supplied as a 0.2 μm filtered solution in Tris, NaCl and CaCl2.
Shipping The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 6 months from date of receipt, -20 to -70 °C as supplied.
  • 3 months, -20 to -70 °C under sterile conditions after opening.

Background: Kallikrein 1

Kallikrein 1 (KLK1), also known as tissue kallikrein, is a member of human tissue kallikrein family (1). The best known physiological function of KLK1 is the cleavage of kininogen to release the vasoactive kinin peptide (bradykinin or lysyl-bradykinin), which regulates vasodilation, blood pressure reduction, smooth muscle relaxation and contraction, pain induction and inflammation (2). In addition, KLK1 may play a role in angiogensis and tumorigenesis (2). Human KLK1 precursor contains a signal peptide (residues1 to 18), a short pro peptide (residues 19 to 24) and a mature chain (residues 25 to 262). The purified rhKLK1 contains the mature chain and the propeptide from human KLK5. After being activated by thermolysin, rhKLK1 is active against a fluorogenic peptide substrate described above.


  1. Yousef, G.M. and E.P. Diamandis (2001) Endocrine Rev. 22:184.
  2. Chao, J. (2004) in Handbook of Proteolytic Enzymes, Barrett, A.J. et al. eds. pp. 1577 - 1580.

Alternate Names


Entrez Gene IDs

3816 (Human); 16612 (Mouse)

Gene Symbol



Additional Kallikrein 1 Products

Product Documents for Recombinant Human Kallikrein 1 Protein, CF

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Recombinant Human Kallikrein 1 Protein, CF

For research use only

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