Human HAI‑2 Ectodomain Antibody

Catalog # Availability Size / Price Qty
Product Details
Citations (2)
Supplemental Products
Reviews (3)

Human HAI‑2 Ectodomain Antibody Summary

Species Reactivity
Detects recombinant human (rh)HAI-2 in direct ELISAs and Western blots. In these formats, does not cross-react with rhHAI-1 or rmHAI-2B.
Monoclonal Mouse IgG1 Clone # 170018
Protein A or G purified from hybridoma culture supernatant
Mouse myeloma cell line NS0-derived recombinant human HAI-2
aa 28-197
Accession # O43291
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.


Recommended Concentration
Western Blot
1 µg/mL
Recombinant Human HAI‑2 (Catalog # 1106-PI)

Human HAI-2 Sandwich Immunoassay

Recommended Concentration
ELISA Capture (Matched Antibody Pair)
2-8 µg/mL 

Use in combination with:

Detection Reagent: Human HAI‑2 Biotinylated Antibody (Catalog # BAF1106)

Standard: Recombinant Human HAI-2A Protein, CF (Catalog # 1106-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.

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.


Preparation and Storage

Reconstitute at 0.5 mg/mL in sterile PBS.
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: HAI-2

HGF Activator Inhibitor type II (HAI-2), also known as placental bikunin, is a Kunitz-type protease inhibitor. It is a type I membrane protein containing 2 Kunitz inhibitor domains in its extracellular region. In mouse, at least three isoforms of HAI-2 exist as a result of alternative splicing. Isoforms 2 and 3, also known as HAI-2B and HAI-2C, respectively, are both missing the first amino-terminal Kunitz inhibitor domain.

Long Name
HGF Activator Inhibitor Type 2
Entrez Gene IDs
10653 (Human); 20733 (Mouse)
Alternate Names
HAI2; HAI-2; HAI-2DIAR3; HAI2FLJ45571; Hepatocyte growth factor activator inhibitor type 2; Kop; kunitz-type protease inhibitor 2; PB; Placental bikunin; serine peptidase inhibitor, Kunitz type, 2; serine protease inhibitor, Kunitz type, 2

Product Datasheets

You must select a language.


Citations for Human HAI‑2 Ectodomain Antibody

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.

2 Citations: Showing 1 - 2
Filter your results:

Filter by:

  1. Epigenetic Silencing of SPINT2 Promotes Cancer Cell Motility via HGF-MET Pathway Activation in Melanoma.
    Authors: Hwang S, Kim H, Min M, Raghunathan R, Panova I, Munshi R, Ryu B
    J Invest Dermatol, 2015-04-24;135(9):2283-91.
    Species: Human
    Sample Types: Cell Lysates
    Applications: Western Blot
  2. An epigenetic genome-wide screen identifies SPINT2 as a novel tumor suppressor gene in pediatric medulloblastoma.
    Authors: Kongkham PN, Northcott PA, Ra YS
    Cancer Res., 2008-12-01;68(23):9945-53.
    Species: Human
    Sample Types: Whole Tissue
    Applications: IHC-P


No product specific FAQs exist for this product, however you may

View all Antibody FAQs

Reviews for Human HAI‑2 Ectodomain Antibody

Average Rating: 3.7 (Based on 3 Reviews)

5 Star
4 Star
3 Star
2 Star
1 Star

Have you used Human HAI‑2 Ectodomain Antibody?

Submit a review and receive an Amazon gift card.

$25/€18/£15/$25CAN/¥75 Yuan/¥1250 Yen for a review with an image

$10/€7/£6/$10 CAD/¥70 Yuan/¥1110 Yen for a review without an image

Submit a Review

Filter by:

Human HAI‑2 Ectodomain Antibody
By Anonymous on 01/14/2021
Application: Microarrays Sample Tested: EDTA Plasma Species: Human

Human HAI‑2 Ectodomain Antibody
By Anonymous on 11/20/2018
Application: MiAr Sample Tested: EDTA Plasma Species: Human

Human HAI‑2 Ectodomain Antibody
By Anonymous on 11/14/2018
Application: Microarrays Sample Tested: EDTA Plasma Species: Human