Human HAI-1 Biotinylated Antibody

Catalog # Availability Size / Price Qty
BAM10482

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Human HAI-1 Biotinylated Antibody Summary

Species Reactivity
Human
Specificity
Detects human HAI-1 In ELISAs. In sandwich immunoassays, no cross-reactivity with recombinant mouse HAI-1, recombinant human (rh) TFPI, rhTFPI-2, rhAPP, rhHAI-2A, rhGASP-1, or rhGASP-2 is observed.
Source
Monoclonal Mouse IgG1 Clone # 169428
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
Mouse myeloma cell line NS0-derived recombinant human HAI-1
Pro37-Val449
Accession # O43278
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Label
Biotin

Applications

Recommended Concentration
Sample

Human HAI-1 Sandwich Immunoassay

Recommended Concentration
Reagent
ELISA Detection (Matched Antibody Pair)
0.5-2.0 µg/mL 

Use in combination with:

Capture Reagent: Human HAI‑1 Antibody (Catalog # MAB10481)

Standard: Recombinant Human HAI-1 Protein, CF (Catalog # 1048-PI)

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

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
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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.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: HAI-1

HAI-1 is a Kunitz-type serine protease inhibitor, identified as a strong inhibitor of HGF activator (HGFA) and matriptase (1). The membrane-anchored HAI-1 consists of two Kunitz domains, a LDL-receptor-like domain, and a C-terminal transmembrane domain (2). Two soluble forms are generated by ectodomain shedding, one with a single Kunitz domain and the other with two Kunitz domains. HAI-1 is not only an inhibitor but also a specific receptor of active HGFA, acting as a reservoir of this enzyme on the cell surface (3). The shedding of HAI-1 and HGFA/HAI-1 complex is enhanced by treatment with phorbol 12-myristate 13-acetate or IL-1 beta. The regulated shedding is completely inhibited by a synthetic zinc metalloprotease inhibitor (3).

References
  1. Denda, K. et al. (2002) J. Biol. Chem. 277:14053. 
  2. Shimomura, T. et al. (1997) J. Biol. Chem. 272:6370.
  3. Kataoka, H. et al. (2000) J. Biol. Chem. 275:40453.
Long Name
HGF Activator Inhibitor Type 1
Entrez Gene IDs
6692 (Human); 20732 (Mouse)
Alternate Names
HAI; HAI1; HAI-1; hepatocyte growth factor activator inhibitor 1; Hepatocyte growth factor activator inhibitor type 1; kunitz-type protease inhibitor 1; MANSC2; serine peptidase inhibitor, Kunitz type 1; serine protease inhibitor, Kunitz type 1; SPINT1

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