Recombinant Human Kininostatin Protein

Formulations:
Catalog # Availability Size / Price Qty
1396-KN-050
Product Details
Citations (1)
FAQs
Reviews

Recombinant Human Kininostatin Protein Summary

Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Activity
Measured by its ability to induce apoptosis of HUVEC human umbilical vein endothelial cells. Colman, R.W. et al. (2001) Arterioscler. Thromb. Vasc. Biol. 21:1427. The ED50 for this effect is 0.2-1 µg/mL in the presence of 10 ng/mL of rhFGF basic.
Source
E. coli-derived human Kininostatin protein
Lys438-Ser531
Accession #
N-terminal Sequence
Analysis
Lys438
Predicted Molecular Mass
10.5 kDa
SDS-PAGE
14 kDa, reducing conditions

Product Datasheets

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

1396-KN

Formulation Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Reconstitution Reconstitute at 10 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.

1396-KN/CF

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 100 μg/mL in sterile PBS.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: Kininostatin

High molecular weight kininogen (HK) is a secreted plasma glycoprotein consisting of six domains (D1 through D6). It binds specifically to endothelial cells and serves as a substrate of plasma kallikrein which releases bradykinin from within D4 of HK. Bradykinin is an active peptide that regulates multiple vascular processes. The resulting cleaved HK, called HKa, is a disulfide-linked dimer containing a heavy chain (D1 to D3) and a light chain (D5 and D6). HKa differs from HK in conformation and possesses new functional properties. It is a potent angiogenesis inhibitor that strongly inhibits endothelial cell proliferation and migration. HKa also induces apoptosis of endothelial cells. D5 of HKa has been shown to be the active region primarily responsible for the HKa anti-angiogenic activity and has been named kininostatin. While both HK and HKa are plasma proteins that are present in circulation, it is not known if kininostatin (D5) can be released from HKa and exist in plasma (1 - 4).

References
  1. Guo, Y. et al. (2002) International Immunopharmacology 2:1931.
  2. Zhang, J. et al. (2000) FASEB 14:2589.
  3. Colman, R.W. et al. (2000) Blood 95(2): 543.
  4. Guo, Y. et al. (2001) Arterioscler. Thromb. Vasc. Biol. 21:1427.
Entrez Gene IDs
3827 (Human)
Alternate Names
Kininostatin

Citation for Recombinant Human Kininostatin Protein

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. High molecular weight kininogen binds to laminin--characterization and kinetic analysis.
    Authors: Schousboe I, Nystrom B
    FEBS J., 2009;276(18):5228-38.
    Species: Human
    Sample Types: Protein
    Applications: Binding Assay

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