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Key Documents

SRP4524

Sigma-Aldrich

BD-3 human

recombinant, expressed in E. coli

Synonyme(s) :

DEFB103, DEFB3, HBD3, HBP3, HDB-3

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About This Item

Code UNSPSC :
12352200
Nomenclature NACRES :
NA.32

Source biologique

human

Produit recombinant

expressed in E. coli

Forme

lyophilized

Poids mol.

~5 kDa

Conditionnement

pkg of 20 μg

Conditions de stockage

avoid repeated freeze/thaw cycles

Impuretés

endotoxin, tested

Numéro d'accès NCBI

Conditions d'expédition

wet ice

Température de stockage

−20°C

Informations sur le gène

Description générale

β-defensin-3 (BD-3) is an anti-microbial peptide produced by airway epithelial cells, lung-derived epithelial cells and keratinocytes. It has a molecular weight of 5kDa. The gene encoding this protein is localized on human chromosome 8p23.1. Recombinant human β-defensin-3 (BD-3) is an antimicrobial peptide, which belongs to the distinct family of β-defenisns. Recombinant human BD-3 is a 5.1 kDa protein containing 45 amino acid residues.
Chemical structure: peptide

Actions biochimiques/physiologiques

β-defensin-3 (BD-3) associates with bacterial products which reduce the effect of inflammatory cytokine responses. The protein has been shown to stimulate the production of interferon-α and activate monocytes through toll-like receptors 1 and 2. It antagonizes the activation of C-X-C motif chemokine receptor 4 (CXCR4).

Forme physique

Sterile filtered and lyophilized with no additives.

Reconstitution

Centrifuge the vial prior to opening. Avoid freeze-thaw cycles.
Reconstitute in 10 mM Acetic acid to a concentration of 0.1-1.0 mg/mL. This solution can then be diluted into other aqueous buffers.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Jeffrey P Meisch et al.
Inflammatory bowel diseases, 19(5), 942-953 (2013-03-21)
Antimicrobial peptides (AMPs) maintain a sterile environment in intestinal crypts, limiting microbial colonization and invasion. Decreased AMP expression is proposed to increase the risk for inflammatory bowel disease. Expression and function of inducible AMPs, human β-defensin 2 and 3 (hBD-2
J Harder et al.
The Journal of biological chemistry, 276(8), 5707-5713 (2000-11-22)
The growing public health problem of infections caused by multiresistant Gram-positive bacteria, in particular Staphylococcus aureus, prompted us to screen human epithelia for endogenous S. aureus-killing factors. A novel 5-kDa, nonhemolytic antimicrobial peptide (human beta-defensin-3, hBD-3) was isolated from human
Edward J Hollox et al.
Nature genetics, 40(1), 23-25 (2007-12-07)
Psoriasis is a common inflammatory skin disease with a strong genetic component. We analyzed the genomic copy number polymorphism of the beta-defensin region on human chromosome 8 in 179 Dutch individuals with psoriasis and 272 controls and in 319 German
Stefanie Scharf et al.
Respiratory research, 11, 93-93 (2010-07-10)
Legionella pneumophila is an important causative agent of severe pneumonia in humans. Human alveolar epithelium and macrophages are effective barriers for inhaled microorganisms and actively participate in the initiation of innate host defense. The beta defensin-3 (hBD-3), an antimicrobial peptide
Poonam Tewary et al.
Journal of immunology (Baltimore, Md. : 1950), 191(2), 865-874 (2013-06-19)
Alarmins are a group of structurally diverse host defense antimicrobial peptides that are important immune activators. In this article, we present a novel role for two potent alarmins, human β-defensin 2 and 3 (HBD2 and 3), in promoting IFN-α production

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