Kallikrein 7 Protein (recombinant human)

Activity: Measured by its ability to cleave the fluorogenic peptide substrate, Mca-RPKPVE-Nval-WRK (Dnp) NH2, R&D Systems, Catalog # ES002. The specific activity is >150 pmoles/min/µg.(Activation description: The proenzyme needs to be activated by Thermolysin for an activated form) Protein Construction: Recombinant Human Kallikrein 7 is produced by our Mammalian expression system and the target gene encoding Glu23-His252 is expressed with a 6His tag at the C-terminus. Sequence: Glu23-His252. Fusion tag: C-6His Endotoxin: < 1.0 EU per µg as determined by the LAL method. Apparent Molecular Mass: 30 kDa. Protein function: Human Kallikrein 7 is a member of the tissue kallikrein family of extracellular serine proteases that is made up of 15 members. It is predominantly expressed in the skin. A major physiological function of Kallikrein 7 is to regulate the desquamation process (the shedding of corneocytes from the outer layer of the epidermis) through proteolysis of the intercellular adhesive structures between corneocytes. Dysregulation of Kallikrein 7 has been linked to several inflammatory skin diseases including atopic dermatitis, psoriasis, and Netherton syndrome. Studies have shown that Kallikrein 5 is a potential physiological activator for Kallikrein 7. The proform of Kallikrein 7 can be activated by thermolysin. Protein function: May catalyze the degradation of intercellular cohesive structures in the cornified layer of the skin in the continuous shedding of cells from the skin surface. Specific for amino acid residues with aromatic side chains in the P1 position. Cleaves insulin A chain at '14-Tyr-, -Gln-15' and insulin B chain at '6- Leu-, -Cys-7', '16-Tyr-, -Leu-17', '25-Phe-, -Tyr-26' and '26-Tyr-, - Thr-27'. Could play a role in the activation of precursors to inflammatory cytokines. [The UniProt Consortium]