Recombinant Mouse beta-Defensin 3 Protein, CF

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Product Details

Summary
Reactivity MuSpecies Glossary
Applications Bioactivity
Format
Carrier-Free

Order Details

Recombinant Mouse beta-Defensin 3 Protein, CF Summary

Details of Functionality
Measured by its anti-microbial activity against E. coli. Ganz, T. et al. (2003) Nat. Rev. Immunol. 3:710. The ED50 for this effect is 4-20 μg/mL.
Source
E. coli-derived mouse beta-Defensin 3 protein
Lys23-Lys63
Accession #
N-terminal Sequence
Lys23
Protein/Peptide Type
Recombinant Proteins
Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
Endotoxin Note
<0.01 EU per 1 μg of the protein by the LAL method.

Applications/Dilutions

Theoretical MW
4.6 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
SDS-PAGE
5 kDa, reducing conditions
Publications
Read Publication using
5987-BD in the following applications:

Packaging, Storage & Formulations

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.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in HCl.
Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
Reconstitution Instructions
Reconstitute at 500 μg/mL in 4 mM HCl.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Recombinant Mouse beta-Defensin 3 Protein, CF

  • BD14
  • BD3
  • BD-3
  • beta-defensin 103
  • betaDefensin 3
  • beta-Defensin 3
  • DEFB103
  • DEFB103A
  • DEFB103B
  • DEFB3
  • DEFB-3
  • DEFB3DEFB103A
  • Defensin, beta 103
  • defensin, beta 103B
  • Defensin-like protein
  • HBD-3
  • HBD3HBP3

Background

beta -defensin 3, also known as BD3 and DEFB-3, is a membrane-active cationic peptide that functions in inflammation and innate immune responses. There are at least 30 beta -defensins which are distinguished from alpha -defensins by the connectivity pattern of their three intramolecular disulfide bonds (1). The 41 aa mature mouse BD3 shares 38% and 59% aa sequence identity with human and rat BD3, respectively (2, 3). It shares 14% - 46% aa sequence identity with other mouse beta -defensins. BD3 is widely expressed among epithelial tissues, notably by keratinocytes and airway epithelial cells. It is up-regulated in response to proinflammatory cytokines, microbial and viral infections, and at the edges of skin wounds (2, 4 ‑ 6). BD3 induction in osteoarthritis chondrocytes promotes MMP1 and 13 production and inhibits TIMP1 and 2 expression (7). In vivo control of BD3 activity is accomplished in part through cleavage by cathepsins B, L, and S (8). BD3 displays strain specific microbicidal activity toward a broad spectrum of bacteria and yeast (2, 9). BD3 also induces monocyte migration, mast cell activation, and a mast cell-dependent increase in vascular permeability (4, 10). Disruption of the intramolecular disulfide bond pattern in BD3 abrogates its monocyte chemoattractant properties but not its antimicrobial properties (11, 12). BD3 inhibits viral infectivity by interacting directly with HIV-1 and its coreceptor CXCR4 (5, 13) and with HSV glycoprotein B and its receptor heparan sulfate (14), and by forming a protective coating on the surface of influenza virus target cells (15).
  1. Dhople, V. et al. (2006) Biochim. Biophys. Acta. 1758:1499.
  2. Bals, R. et al. (1999) Infect. Immun. 67:3542.
  3. Schibli, D.J. et al. (2002) J. Biol. Chem. 277:8279.
  4. Garcia, J.-R.C. et al. (2001) Cell Tissue Res. 306:257.
  5. Quinones-Mateu, M.E. et al. (2003) AIDS 17:F39.
  6. Sorensen, O.E. et al. (2006) J. Clin. Invest. 116:1878.
  7. Varoga, D. et al. (2005) Arthritis Rheum. 52:1736.
  8. Taggart, C.C. et al. (2003) J. Immunol. 171:931.
  9. Joly, S. et al. (2004) J. Clin. Microbiol. 42:1024.
  10. Chen, X. et al. (2007) Eur. J. Immunol. 37:434.
  11. Kluver, E. et al. (2005) Biochemistry 44:9804.
  12. Wu, Z. et al. (2003) Proc. Natl. Acad. Sci. 100:8880.
  13. Feng, Z. et al. (2006) J. Immunol. 177:782.
  14. Hazrati, E. et al. (2006) J. Immunol. 177:8658.
  15. Leikina, E. et al. (2005) Nat. Immunol. 6:995.

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Publications for beta-Defensin 3 (5987-BD)(1)

We have publications tested in 1 confirmed species: Bacteria - Bordetella bronchiseptica.

We have publications tested in 1 application: Bioassay.


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Beta-defensin-3: I may be small but I'm powerful!
Beta-defensin 3 is a novel, non-hemolytic antimicrobial cationic peptide originally isolated from human lesional psoriatic scales and keratinocyte clones. It is a very small (2-6 kD) yet potent salt-insensitive broad spectrum antimicrobial that ta...  Read full blog post.

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