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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. KLKB1 Protein, Mouse, Recombinant (His) is expressed in HEK293 mammalian cells with C-His tag. The predicted molecular weight is 70.3 kDa and the accession number is P26262.

| Pack Size | Price | Availability | Quantity |
|---|---|---|---|
| 5 μg | $56 | 7-10 days | |
| 10 μg | $88 | 7-10 days | |
| 20 μg | $143 | 7-10 days | |
| 50 μg | $278 | 7-10 days | |
| 100 μg | $465 | 7-10 days | |
| 200 μg | $839 | 7-10 days | |
| 500 μg | $1,850 | 7-10 days |
| Biological Activity | Activity has not been tested. It is theoretically active, but we cannot guarantee it. If you require protein activity, we recommend choosing the eukaryotic expression version first. |
| Description | 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. KLKB1 Protein, Mouse, Recombinant (His) is expressed in HEK293 mammalian cells with C-His tag. The predicted molecular weight is 70.3 kDa and the accession number is P26262. |
| Species | Mouse |
| Expression System | HEK293 Cells |
| Tag | C-His |
| Accession Number | P26262 |
| Synonyms | Plasma kallikrein,PKK,KLKB1,KLK3,Kininogenin,Fletcher factor |
| Construction | Gly20-Ala638 |
| Protein Purity | > 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC |
| Molecular Weight | 70.3 kDa (predicted). Due to glycosylation, the protein migrates to 75-85 kDa based on Tris-Bis PAGE result. |
| Endotoxin | < 1 EU/μg by the LAL method. |
| Formulation | Lyophilized from a solution filtered through a 0.22 μm filter, containing 20 mM NaAc, 150 mM NaCl (pH 5.0). Typically, 8% trehalose is incorporated as a protective agent before lyophilization. |
| Reconstitution | Reconstitute the lyophilized protein in 20mM NaAc, 150mM NaCl (pH 5.0). The product concentration should not be less than 100 μg/ml. Before opening, centrifuge the tube to collect powder at the bottom. After adding the reconstitution buffer, avoid vortexing or pipetting for mixing. |
| Stability & Storage | It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots. |
| Shipping | In general, Lyophilized powders are shipping with blue ice. |
| Research Background | 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. |

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