BD-4, human recombinant

  • Catalog number
    4525-1000
  • Price
    Please ask
  • Size
    1 mg
  • Synonyms
    DEFB104A; DEFB4; BD-4; DEFB-4; DEFB104; MGC118942; MGC118944; MGC118945; hBD-4
  • Alternative_names
    Beta-defensin 3, Defensin, beta 103, Defensin-like protein, DEFB103A, BD3, DEFB103, DEFB3, DEFB103B
  • Description
    An antimicrobial peptide
  • Recombinant
    Yes
  • Source
    E. coli
  • Purity by SDS PAGE
    ≥98%
  • Assay
    SDS-PAGE
  • Purity
    ≥98%
  • Biological activity
    Determined by its ability to chemoattract human monocytes using a concentration range of 0.1-50 ng/ml.
  • Molecular Weight
    ~6.0 kDa
  • Storage Temp
    -20°C
  • Shipping
    Gel pack
  • Shelf Life
    12 months
  • Appearance
    Lyophilized protein
  • Physical form description
    Sterile filtered and lyophilized from 20 mM PBS, pH 7.4 and 130 mM NaCl.
  • 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.
  • 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.
  • Handling
    Centrifuge the vial prior to opening.
  • Usage
    For Research Use Only! Not to be used in humans
  • Properties
    Human proteins, cDNA and human recombinants are used in human reactive ELISA kits and to produce anti-human mono and polyclonal antibodies. Modern humans (Homo sapiens, primarily ssp. Homo sapiens sapiens). Depending on the epitopes used human ELISA kits can be cross reactive to many other species. Mainly analyzed are human serum, plasma, urine, saliva, human cell culture supernatants and biological samples.
  • Additional source
    Recombinants or rec. proteins
  • Group
    recombinants
  • Gene target
    BD-4  
  • Gene symbol
    MIR1302-4, PIRC18, PIRC16, SNORD114-4, IGKV2OR2-4, MIR941-4, PIRC19, PIRC17
  • Short name
    BD-4, recombinant
  • Technique
    Recombinant, E. coli recombinant proteins are genetic recombinations in Escherichia coli, supplied as white sterile powder lyopillized. Biovision advises they will be reconstituted in a buffer soluion or culture medium for cell culture.
  • Species
    Human, Humans
  • Alternative name
    BD-4, H. sapiens Rec.
  • Alternative technique
    rec
Gene info
Gene info
  • Identity
  • Gene
  • Long gene name
    piwi-interacting RNA cluster 18
  • Locus
    4
  • Discovery year
    2009-11-05
  • Entrez gene record
  • Pubmed identfication
  • Classification
    • Piwi-interacting RNA clusters
Gene info
  • Identity
  • Gene
  • Long gene name
    piwi-interacting RNA cluster 16
  • Locus
    4
  • Discovery year
    2009-11-05
  • Entrez gene record
  • Pubmed identfication
  • Classification
    • Piwi-interacting RNA clusters
Gene info
Gene info
  • Identity
  • Gene
  • Long gene name
    immunoglobulin kappa variable 2/OR2-4 (pseudogene)
  • Synonyms gene name
    • immunoglobulin kappa variable 2/OR2-4
    • immunoglobulin kappa variable 2/OR2-4 pseudogene
  • Synonyms
  • GenBank acession
  • Locus
  • Discovery year
    2000-04-18
  • Entrez gene record
  • Pubmed identfication
  • Classification
    • Immunoglobulin kappa (IGK) orphons
Gene info
Gene info
  • Identity
  • Gene
  • Long gene name
    piwi-interacting RNA cluster 19
  • Locus
    4
  • Discovery year
    2009-11-05
  • Entrez gene record
  • Pubmed identfication
  • Classification
    • Piwi-interacting RNA clusters
Gene info
  • Identity
  • Gene
  • Long gene name
    piwi-interacting RNA cluster 17
  • Locus
    4
  • Discovery year
    2009-11-05
  • Entrez gene record
  • Pubmed identfication
  • Classification
    • Piwi-interacting RNA clusters
MeSH Data
  • Name
  • Concept
    Scope note: The initial culturing of cells derived directly from fresh TISSUES.
  • Tree numbers
    • E01.370.225.500.223.500
    • E05.200.500.265.500
    • E05.242.223.500
    • E05.481.500.249.500
  • Qualifiers
    ethics, trends, veterinary, history, classification, economics, instrumentation, methods, standards, statistics & numerical data
Product images
Similar products
Filters
Contact
Chat with gentaur.com employee