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Catalog Products » Recombinant Proteins » Catalog Proteins - View by Cat. No. » Cytokines and Growth Factors » Beta Defensin-3 (BD-3), Mouse

BD-3, Mouse

Synonyms BD-3 Murine; BD 3 Murine
Description Beta defensin-3, also known as BD-3 and DEFB-3, is a membrane active cationic peptide that functions in inflammation and innate immune responses and coded by Defb 3 gene on chromosome 8 in mouse. There are at least 30 β-defensins which are distinguished from α-defensins by the connectivity pattern of their three intramolecular disulfide bonds. BD3 is widely expressed among epithelial tissues, notably by keratinocytes and airway epithelial cells. It is upregulated in response to proinflammatory cytokines, microbial and viral infections, and at the edges of skin wounds. BD3 induction in osteoarthritis chondrocytes promotes MMP1 and 13 productions and inhibits TIMP1 and 2 expressions.
Species Mouse
Source E. coli
Specific Activity Fully biologically active when compared to standard. The ED50 as determined by anti-microbial activity against E.coli. is less than 20 μg/ml, corresponding to a specific activity of > 50 IU/mg.
Sequence
KKINNPVSCL RKGGRCWNRC IGNTRQIGSC GVPFLKCCKR
K

Measured Molecular Weight Approximately 4.6 kDa, a single non-glycosylated polypeptide chain containing 41 amino acid residues.
Purity > 95 % by SDS-PAGE and HPLC analyses.
Formulation Lyophilized from a 0.2 μm filtered concentrated solution in 2 × PBS, pH 7.4.
Reconstitution We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
Endotoxin Level Less than 1 EU/μg of rMuBD-3 as determined by LAL method.
Physical Appearance Sterile Filtered White lyophilized (freeze-dried) powder.
Storage This lyophilized preparation is stable at 2-8 °C, but should be kept at -20 °C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8 °C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 °C to -70 °C. Avoid repeated freeze/thaw cycles.
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Cat. No. Z02895
Size
Price
20 ug $159.00
1 mg $2100.00
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