Plasma kallikrein/KLKB1 Protein, Cynomolgus (HEK293, His)

Plasma kallikrein (KLKB1) serves as an enzyme, cleaving Lys-Arg and Arg-Ser bonds to release bradykinin from HMW kininogen. It plays a crucial role in the reciprocal activation of factor XII, especially upon binding to a negatively charged surface. Besides its role in the kinin system, KLKB1 may contribute to the renin-angiotensin system by converting prorenin into renin. Plasma kallikrein/KLKB1 Protein, Cynomolgus (HEK293, His) is the recombinant cynomolgus-derived Plasma kallikrein/KLKB1 protein, expressed by HEK293 , with C-His labeled tag. The total length of Plasma kallikrein/KLKB1 Protein, Cynomolgus (HEK293, His) is 619 a.a., with molecular weight of 70-90 kDa.

Plasma kallikrein (KLKB1) is an enzyme with the ability to cleave Lys-Arg and Arg-Ser bonds, facilitating the release of bradykinin from HMW kininogen. Additionally, KLKB1 plays a pivotal role in the activation of factor XII through a reciprocal reaction, particularly following its binding to a negatively charged surface. Beyond its involvement in the kinin system, this enzyme may contribute to the renin-angiotensin system by converting prorenin into renin.

Measured by its ability to cleave a flourogenic peptide substrate Pro-Phe-Arg-7-amido-4-methylcoumarin (PFR-AMC). The specific activity is 1133 pmol/min/μg.

Cynomolgus

HEK293

C-His

A0A2K5VTJ9 (G20-A638)

102142369

70-90 kDa

Greater than 95% as determined by Tris-Bis PAGE.

Lyophilized powder

Lyophilized from 0.22 μm filtered solution in 20 mM NaAc, 150 mM NaCl (pH 5.0). Normally 8% trehalose is added as protectant before lyophilization.

<1 EU/μg, determined by LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O.

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.