Description
BD-4, human recombinant is available at Gentaur for Next week delivery.
An antimicrobial peptide
Biomolecule/Target: BD-4
Alternates names: Beta-defensin 3, Defensin, beta 103, Defensin-like protein, DEFB103A, BD3, DEFB103, DEFB3, DEFB103B
Synonyms: DEFB104A; DEFB4; BD-4; DEFB-4; DEFB104; MGC118942; MGC118944; MGC118945; hBD-4
Background Information: Defensins are cationic peptides with a large spectrum of antimicrobial activity that comprise an important arm of the innate immune system. The Alpha defensins are differentiated from the Beta-defensins by the pairing of their 3 disulfide bonds. Four human Beta-defensins have been identified to date; BD-1, BD-2, BD-3 and BD-4. Beta-defensins are expressed on some leukocytes and at epithelial surfaces. In addition to their direct antimicrobial activities, they are chemoattractant towards immature dendritic cells and memory T cells. Beta-defensin proteins are expressed as the C-terminal portion of precursors and are released by proteolytic cleavage of a signal sequence (for BD-1 a propeptide region). Beta-defensins contain a six-cysteine motif that forms three intra-molecular disulfide bonds. Beta Defensin-4 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 50 amino acids. The BD-4 is purified by proprietary chromatographic techniques.
Reconstitution Instructions: Centrifuge the vial prior to opening. Reconstitute in sterile dd H₂O to a concentration ≥ 100 µg/ml. This solution can then be diluted into other aqueous buffers and stored at 4 °C for 2-7 days and at -20 °C for future use.
NCBI Gene Symbol: DEFB4
Gene ID: 140596
NCBI Accession: Q8WTQ1
Additional Information
Size: |
20 μg |
Country of Manufacturing Origin: |
USA |
Country of Animal Origin: |
USA |
Gene Source: |
Human |
Recombinant: |
Yes |
Source: |
E. coli |
Purity by SDS-PAGE: |
≥98% |
Assay: |
SDS-PAGE |
Purity: |
≥98% |
Assay 2: |
HPLC |
Endotoxin Level: |
N/A |
Activity (Specifications/test method): |
N/A |
Biological activity: |
Determined by its ability to chemoattract human monocytes using a concentration range of 0.1-50 ng/ml. |
Results: |
N/A |
Molecular Weight: |
~6.0 kDa |
Storage Temperature: |
-20°C |
Shelf Life: |
12 months |
Concentration: |
N/A |
Appearance: |
Lyophilized protein |
Handling: |
Centrifuge the vial prior to opening. |