C. botulinum BoNT-E Heavy Chain Antibody

AF7135 has been discontinued. View all BoNT-E Heavy Chain products.
    
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  • Species Reactivity
    C. botulinum
  • Specificity
    Detects C. botulinum BoNT-E Heavy Chain in direct ELISAs and Western blots. In direct ELISAs, approximately 4% cross-reactivity with BoNT-G/HCR and BoNT-A/HCR is observed.
  • Source
    Polyclonal Sheep IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    E. coli-derived recombinant C. botulinum BoNT-E Heavy Chain Lys845-Lys1251 Accession # P30995
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
  • Label
    Unconjugated
Product Datasheets

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Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    1 µg/mL
    See below
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Data Example
Detection of C. botulinum BoNT-E Heavy Chain by Western Blot. Western blot shows recombinant C. botulinum BoNT-E Heavy Chain (10 ng/lane). PVDF membrane was probed with 1 µg/mL of Sheep Anti-C. botulinum BoNT-E Heavy Chain Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7135) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for BoNT-E Heavy Chain at approximately 50 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 8.
Preparation and Storage
  • Reconstitution
    Sterile PBS to a final concentration of 0.2 mg/mL.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
  • Stability & Storage
    Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
      12 months from date of receipt, -20 to -70 degreesC as supplied. 1 month, 2 to 8 degreesC under sterile conditions after reconstitution. 6 months, -20 to -70 degreesC under sterile conditions after reconstitution.
Background: BoNT-E Heavy Chain
BoNT/E HCR (Botulinum neurotoxin serotype E heavy chain receptor) is a 105 kDa component of BoNT/E, a member of the peptidase M27 family of molecules. BoNT/E is the product of Clostridium botulinum, and inhibits neurotransmitter release from neuromuscular junctions. This is accomplished by toxin internalization with subsequent cleavage of membrane-associated SNAP25, thus blocking synaptic vesicle fusion with the presynaptic membrane. The 155 kDa BoNT/E precursor is 1251 amino acids (aa) in length. Following internalization and precursor proteolytic cleavage by host proteases, it assumes a mature form that contains a 50 kDa disulfide-linked 422 aa light chain/enzyme N-terminus, and a 105 kDa, 829 aa heavy chain/receptor-binding C-terminus. The heavy chain has two components, a 327 aa translocation domain (aa 518-840), and a 408 aa cell membrane SV2:ganglioside binding region (aa 844-1250). The heavy chain creates a channel within the endosome that allows for redox rupture of the disulfide bond and entry of the light chain into the cytosol. The E heavy chain shares less that 50% aa identity with the BoNT/A heavy chain.
  • Long Name:
    Botulinum Neurotoxin Type E Heavy Chain
  • Alternate Names:
    BoNTE Heavy Chain; BoNT-E Heavy Chain; Bontoxilysin-E
Related Research Areas

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