Recombinant Human KLKB1 Protein is expressed from HEK293 with His tag at the C-Terminus.It contains Gly20-Ala638.
Pureté
> 95 % as determined by Tris-Bis PAGE,> 95 % as determined by HPLC
Stérilité
0.22 μm filtered
niveau d'endotoxine
Less than 1EU per μg by the LAL method.
Biological Activity Comment
Immobilized Human KLKB1, His Tag at 2μg/ml (100μl/well) on the plate. Dose response curve for Anti-KLKB1 Antibody, hFc Tag with the EC50 of 21.4ng/ml determined by ELISA. See testing image for detail.
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/mL is recommended. Dissolve the lyophilized protein in 20 mM NaAc,150 mM NaCl ( pH 5.0).
Buffer
Lyophilized from 0.22μm filtered solution in 20 mM NaAc,150 mM NaCl ( pH 5.0). Normally 8 % trehalose is added as protectant before lyophilization.
Stock
-20 °C,-80 °C
Stockage commentaire
-20 to -80°C for 12 months as supplied from date of receipt.,-80°C for 3-6 months after reconstitution.,2-8°C for 2-7 days after reconstitution.,Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Plasma kallikrein, also known as Fletcher factor or kallikrein B1 (KLKB1), is a serine endopeptidase, like its homologs tissue kallikrein and kallikrein-related peptidases (KLKs). Its physiological role is to catalyze the release of kinins and other vasoactive peptides.
Poids moléculaire
70.3 kDa. Due to glycosylation, the protein migrates to 72-80 kDa based on Tris-Bis PAGE result.