Recombinant Human Kininogen-1 protein (His Tag)

Species

Human

Purity

>90 %, SDS-PAGE

Tag

His Tag

Activity

not tested

Cat no : Eg1162

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Validation Data Gallery

• 

  Purity of Recombinant Human Kininogen-1 was determined by SDS-PAGE. The protein was resolved in an SDS-PAGE in reducing (R) and non-reducing (NR) conditions and stained using Coomassie blue.

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Product Information

• Purity: >90 %, SDS-PAGE
• Endotoxin: <0.1 EU/μg protein, LAL method
• Activity:

  Not tested

• Expression: HEK293-derived Human Kininogen-1 protein Gln19-Ser644 (Accession# P01042-1) with a His tag at the C-terminus.
• GeneID: 3827
• Accession: P01042-1
• PredictedSize: 71.5 kDa
• SDS-PAGE: 95-110 kDa, reducing (R) conditions
• Formulation: Lyophilized from 0.22 μm filtered solution in PBS, pH 7.4. Normally 5% trehalose and 5% mannitol are added as protectants before lyophilization.
• Reconstitution: Briefly centrifuge the tube before opening. Reconstitute at 0.1-0.5 mg/mL in sterile water.
• Storage Conditions:
  It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
  • Until expiry date, -20℃ to -80℃ as lyophilized proteins.
  • 3 months, -20℃ to -80℃ under sterile conditions after reconstitution.
• Shipping: The product is shipped at ambient temperature. Upon receipt, store it immediately at the recommended temperature.

Background

Kininogens are inhibitors of thiol proteases. Kininogen 1 plays important role in Kinin-kallikrein system. This gene is translated into High-molecular weight kininogen (HMWK) and low-molecular weight kininogen (LMWK) after alternative splicing. HMWK is produced by the liver together with prekallikrein. It acts mainly as a cofactor on coagulation and inflammation, and has no intrinsic catalytic activity. LMWK is produced locally by numerous tissues, and secreted together with tissue kallikrein.

References:

1. Cheng Z. et al. (2018) J Exp Clin Cancer Res. 37(1):180.