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Human Serpin A4/Kallistatin Antibody

R&D Systems, part of Bio-Techne | Catalog # AF1669

R&D Systems, part of Bio-Techne
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AF1669
AF1669-SP

Key Product Details

Species Reactivity

Human

Applications

Immunohistochemistry, Immunoprecipitation, Neutralization, Western Blot

Label

Unconjugated

Antibody Source

Polyclonal Goat IgG

Product Specifications

Immunogen

Mouse myeloma cell line NS0-derived recombinant human Serpin A4/Kallistatin
Gly20-Pro427 (predicted)
Accession # AAA59454

Specificity

Detects human Serpin A4/Kallistatin in direct ELISAs and Western blots. In direct ELISAs, less than 5% cross-reactivity with recombinant human (rh) Serpin A1, rhSerpin A3, rhSerpin A5, rhSerpin C1, recombinant mouse Serpin D1, and rhSerpin F2 is observed.

Clonality

Polyclonal

Host

Goat

Isotype

IgG

Scientific Data Images for Human Serpin A4/Kallistatin Antibody

Detection of Human Serpin A4/Kallistatin antibody by Western Blot.

Detection of Human Serpin A4/Kallistatin by Western Blot.

Western blot shows lysates of human liver tissue, human kidney tissue, and human pancreas tissue. PVDF membrane was probed with 0.25 µg/mL of Goat Anti-Human Serpin A4/Kallistatin Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1669) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). Specific bands were detected for Serpin A4/Kallistatin at approximately 50-60 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Applications for Human Serpin A4/Kallistatin Antibody

Application
Recommended Usage

Immunohistochemistry

5-15 µg/mL
Sample: Immersion fixed paraffin-embedded sections of human liver

Immunoprecipitation

25 µg/mL
Sample: Conditioned cell culture medium spiked with Recombinant Human Serpin A4/Kallistatin (Catalog # 1669-PI), see our available Western blot detection antibodies

Western Blot

0.25 µg/mL
Sample: Human liver tissue, human kidney tissue, and human pancreas tissue

Neutralization

Measured by its ability to neutralize Recombinant Human Serpin A4 (3.8 µg/mL, Catalog # 1669-PI) inhibition of Chymotrypsin (0.1 µg/mL) cleavage of the fluorogenic peptide substrate Mca-RPKPVE-Nval-WRK(Dnp)-NH2 (10 µM, Catalog # ES002). The Neutralization Dose (ND50) is typically 10.8 µg/mL.
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Reconstitution Buffer Available:
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Formulation

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.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store 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: Serpin A4/Kallistatin

Serpin A4 is a member of the Serpin superfamily of the serine protease inhibitors (1). Known also as Kallistatin or proteinase inhibitor 4, Serpin A4 has been shown to function as a specific inhibitor of tissue kallikrein and as an inhibitor of angiogenesis and tumor growth (2, 3).

References

  1. Silverman, G.A. et al. (2001) J. Biol. Chem. 276:33293.
  2. Chen, V.C. et al. (2000) J. Biol. Chem. 275:40371.
  3. Miao, R.Q. et al. (2002) Blood 100:3245.

Alternate Names

Kallistatin

Entrez Gene IDs

5267 (Human)

Gene Symbol

SERPINA4

UniProt

Additional Serpin A4/Kallistatin Products

Product Documents for Human Serpin A4/Kallistatin Antibody

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Human Serpin A4/Kallistatin Antibody

For research use only

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