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Recombinant Human BD-3
Beta-Defensin 3 (BD-3), also known as DEFB-3, is a member of the defensin class of antimicrobial peptides. Beta defensins exert host defense responses against viruses, bacteria, and fungi through the binding and permeabilizing of microbial membranes. BD-3 expression is stimulated by interferon-gamma and is an important molecule during adaptive immunity. BD-3 functions to activate monocytes and mast cells, and has antibacterial functions towards Gram-negative and Gram-positive bacteria. Further, BD-3 blocks human immunodeficiency virus type 1 (HIV-1) replication through the downregulation of the HIV-1 co-receptor, CXCR4.
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Instructions
Centrifuge vial before opening. Suspend the product by gently pipetting the above recommended solution down the sides of the vial. DO NOT VORTEX. Allow several minutes for complete reconstitution. For prolonged storage, dilute to working aliquots in a 0.1% BSA solution, store at -80°C and avoid repeat freeze thaws.
Technical Specifications
Alternate Names | DEFB-3 |
Accession Number | P81534 |
Source | Genetically modified E.coli |
Predicted Molecular Mass | Monomer, 5.2 kDa (45 aa) |
AA Sequence | GIINTLQKYY CRVRGGRCAV LSCLPKEEQI GKCSTRGRKC CRRKK |
Formulation | Lyophilized from a 0.2 µm filtered solution containing 0.1% Trifluoroacetic Acid (TFA) |
Product Reconstitution | Sterile 10 mM acetic acid at 0.1 mg/mL |
Country of Origin | USA |
Specification* | Method of Determination | Acceptance Criteria |
Purity | Reducing and Non-Reducing SDS PAGE | ≥ 95% |
Endotoxin | Kinetic LAL | ≤ 0.1 EU/µg |
Biological Activity (ED50) | No biological activity data is available at this time | No biological activity data is available at this time |
*Lot-specific values for the above specifications are supplied with each product on its corresponding COA. The values provided here are minimum expected values to pass internal requirements.