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Defensin beta 4 Protein (DEFB4)

DEFB4 Origin: Rat Host: Escherichia coli (E. coli) Recombinant > 95 % by SDS-PAGE and HPLC analyses. Active
Catalog No. ABIN2017684
  • Target See all Defensin beta 4 (DEFB4) Proteins
    Defensin beta 4 (DEFB4)
    Protein Type
    Recombinant
    Biological Activity
    Active
    Origin
    • 7
    • 1
    • 1
    Rat
    Source
    • 4
    • 2
    • 2
    Escherichia coli (E. coli)
    Sequence
    QSINNPITCL TKGGVCWGPC TGGFRQIGTC GLPRVRCCKK K
    Characteristics
    Fully biologically active when compared to standard. The biologically active determined by a chemotaxis bioassay using human monocytes is in a concentration range of 0.1-100.0 ng/mL.
    Purity
    > 95 % by SDS-PAGE and HPLC analyses.
    Sterility
    0.2 μm filtered
    Endotoxin Level
    < 1 EU/μg of rRtBD-4 as determined by LAL method.
    Top Product
    Discover our top product DEFB4 Protein
  • Restrictions
    For Research Use only
  • Format
    Lyophilized
    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.
    Buffer
    Lyophilized from a 0.2 μm filtered concentrated solution in 10 mM PB, pH 7.4, 500 mM NaCl.
    Handling Advice
    Avoid repeated freeze/thaw cycles.
    Storage
    4 °C/-20 °C
    Storage Comment
    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.
  • Target
    Defensin beta 4 (DEFB4)
    Alternative Name
    beta-Defensin 4 (BD-4) (DEFB4 Products)
    Synonyms
    BD-2 Protein, DEFB-2 Protein, DEFB102 Protein, DEFB2 Protein, DEFB4 Protein, HBD-2 Protein, SAP1 Protein, 2310001F05Rik Protein, BD-4 Protein, Defb2 Protein, Defb3 Protein, BNBD-4 Protein, BNBD4 Protein, defensin beta 4A Protein, defensin beta 4 Protein, defensin, beta 4A Protein, DEFB4A Protein, Defb4 Protein
    Background
    Defensins (alpha and beta) are cationic peptides with a broad spectrum of antimicrobial activity that comprise an important arm of the innate immune system. The a-defensins are distinguished from the b-defensins by the pairing of their three disulfide bonds. To date, four rat b-defensins have been identified, BD-1, BD-2, BD-3 and BD-4. The b-defensin proteins are expressed as the C-terminal portion of precursors and are released by proteolytic cleavage of a signal sequence. b-defensins contain a six-cysteine motif that forms three intra-molecular disulfide bonds. Beta-defensins are 3-5 kDa peptides ranging in size from 33-47 amino acid residues. BD-4 is expressed in testis, stomach, uterus, neutrophils, thyroid, lung and kidney.
    Synonyms: Beta-defensin 4, BD-4, BD-2, Defensin beta 4, RBD-2, RBD-4, Defb4, Defb2, Defb3.
    Molecular Weight
    4.4 kDa, a single non-glycosylated polypeptide chain containing 41 amino acids.
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