Human Anti-IgE Recombinant Antibody (clone Omaizumab S267E/L328F) (CAT#: HPAB-AP674-YC)

Provided is a immunoglobulin that binds IgE with high affinity. The antibody is capable of inhibiting cells that express membrane-anchored IgE. Also, the antibody is useful for treating IgE-mediated disorders, including allergies and asthma.

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  • Fc Engineering:
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  • Published Data
  • Datasheet
  • MSDS
  • COA
ELISA

Figure 1 Inhibition of IgE binding to FcεRIα through ligelizumab or omalizumab IgG by ELISA.

Figure 1 Inhibition of IgE binding to FcεRIα through ligelizumab or omalizumab IgG by ELISA.

Inhibition of IgE binding to FcεRIα and CD23 by ligelizumab or omalizumab.

Gasser, P., Tarchevskaya, S. S., Guntern, P., Brigger, D., Ruppli, R., Zbären, N., ... & Eggel, A. (2020). The mechanistic and functional profile of the therapeutic anti-IgE antibody ligelizumab differs from omalizumab. Nature communications, 11(1), 1-14.

Inhib

Figure 2 Isolated primary human blood basophils are gated as SSClow, FSClow, CD123+, CD193+ double-positive cells.

Figure 2 Isolated primary human blood basophils are gated as SSClow, FSClow, CD123+, CD193+ double-positive cells.

After resensitization with recombinant human JW8-IgE (dashed gray line) is shown.

Gasser, P., Tarchevskaya, S. S., Guntern, P., Brigger, D., Ruppli, R., Zbären, N., ... & Eggel, A. (2020). The mechanistic and functional profile of the therapeutic anti-IgE antibody ligelizumab differs from omalizumab. Nature communications, 11(1), 1-14.

FC

Figure 3 Representative flow cytometry plots and quantification of IgG-positive RPMI8866 cell frequencies.

Figure 3 Representative flow cytometry plots and quantification of IgG-positive RPMI8866 cell frequencies.

Representative image stream flow cytometry pictures for IgE staining.

Gasser, P., Tarchevskaya, S. S., Guntern, P., Brigger, D., Ruppli, R., Zbären, N., ... & Eggel, A. (2020). The mechanistic and functional profile of the therapeutic anti-IgE antibody ligelizumab differs from omalizumab. Nature communications, 11(1), 1-14.

IHC

Figure 4 Co-localization analysis for IgE staining of IgE-sensitized RPMI8866 cells.

Figure 4 Co-localization analysis for IgE staining of IgE-sensitized RPMI8866 cells.

Binding of CD23:IgE complexes by ligelizumab or omalizumab.

Gasser, P., Tarchevskaya, S. S., Guntern, P., Brigger, D., Ruppli, R., Zbären, N., ... & Eggel, A. (2020). The mechanistic and functional profile of the therapeutic anti-IgE antibody ligelizumab differs from omalizumab. Nature communications, 11(1), 1-14.


Specifications

  • Host Species
  • Human
  • Derivation
  • Humanized
  • Type
  • Humanized IgG1
  • Specificity
  • Human IgE
  • Species Reactivity
  • Human
  • Clone
  • Omaizumab S267E/L328F
  • Applications
  • Inhib, FC, IHC, ELISA
  • Related Disease
  • Allergies and Asthma

Product Property

  • Purity
  • >95% as determined by SDS-PAGE and HPLC analysis
  • Buffer
  • PBS
  • Preservative
  • No preservatives
  • Storage
  • Centrifuge briefly prior to opening vial. Store at +4°C short term (1-2 weeks). Aliquot and store at -20°C long term. Avoid repeated freeze/thaw cycles.

Applications

  • Application Notes
  • The IgE antibody has been reported in applications of Enzyme-linked Immunosorbent Assay, Flow Cytometry, Inhibition, Immunohistochemistry.

Target

  • Alternative Names
  • Immunoglobulin E

Related Resources

  • Related Diseases

Product Notes

This is a product of Creative Biolabs' Hi-Affi™ recombinant antibody portfolio, which has several benefits including:

• Increased sensitivity
• Confirmed specificity
• High repeatability
• Excellent batch-to-batch consistency
• Sustainable supply
• Animal-free production

See more details about Hi-Affi™ recombinant antibody benefits.

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For Research Use Only. Not For Clinical Use.

For research use only. Not intended for any clinical use. No products from Creative Biolabs may be resold, modified for resale or used to manufacture commercial products without prior written approval from Creative Biolabs.

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