• Species Reactivity

  Human

• Specificity

  Detects human Serpin D1/Heparin Cofactor II in direct ELISAs and Western blots. In Western blots, no cross‑reactivity with recombinant human Serpin A3, A4, B6, B8, C1, I1, I2, recombinant mouse Serpin A1, A6, D1, E1, E2, F1, or F2 is observed.

• Source

  Monoclonal Mouse IgG    _2B Clone # 373008

• Purification

  Protein A or G purified from hybridoma culture supernatant

• Immunogen

  S. frugiperda insect ovarian cell line     Sf 21-derived recombinant human Serpin D1/Heparin Cofactor II    
  Gly20-Arg498    
  Accession # P05546

• Formulation

  Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.

• Label

  Unconjugated

Applications

• Recommended    
  Concentration

  Sample

• Western Blot

  1 µg/mL

  Recombinant Human Serpin D1/Heparin Cofactor II (Catalog # )

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• Immunoprecipitation

  25 µg/mL

  Conditioned cell culture medium spiked with Recombinant Human Serpin D1/Heparin Cofactor II (Catalog # ),

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Please Note: Optimal dilutions should be determined by each laboratory for each application.  are available in the Technical Information section on our website.

Preparation and Storage

• Reconstitution

  Reconstitute at 0.5 mg/mL in sterile PBS.

• Shipping

  The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C

• 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.

• 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Serpin D1/Heparin Cofactor II

Serpin D1, also known as Heparin Cofactor II, is a member of the Serpin superfamily of the serine protease inhibitors (1). Similar to Serpins A5 and C1, it inhibits thrombin and this activity is enhanced by heparin. Interestingly, a C-terminal His-tagged recombinant Serpin D1 had enhanced heparin effect, which was maintained in a plasma-based thrombin inhibition assay (2). Congenital Serpin D1 deficiency is a potential risk factor for thrombosis (3).

• References:

1. Silverman, G.A. et al. (2001) J. Biol. Chem. 276:33293.

2. Bauman, S.J. et al. (1999) J. Biol. Chem. 274:34556.

3. Tollefsen, D.M. (2002) Arch. Pathol. Lab. Med. 126:1394.

• Entrez Gene IDs:

  3053 (Human); 15160 (Mouse)

• Alternate Names:

  HC2; HC2LS2; HCF2; HCF2clade D (heparin cofactor), member 1; HC-II; Heparin Cofactor II; HLS2HCII; leuserpin 2; LS2; Protease inhibitor leuserpin-2; Serpin D1; serpin peptidase inhibitor, clade D (heparin cofactor), member 1