Mouse Monoclonal to IgE
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Immunoglobulin E (IgE
) is a 180 kDa soluble protein serving as an antigen-specific unit of mast cell effector mechanisms. IgE has the lowest serum concentration of all immunoglobulins (approximately 0.5 mg/l) in healthy individuals, but upon allergen challenge its concentration in blood increases dramatically. Although biological survival of free IgE is very short (T1/2 = 2 days), it is stabilized after binding to its high affinity receptor. Unlike IgM- IgG- and IgA-committed B cells, IgE-switched B cells do not undergo clonal expansion.
Entrez Gene (Ig heavy constant epsilon): 14q32.33
The antibody BE5 reacts with human IgE; it recognizes an epitope different from the ones recognized by 4G7 and 4H10 antibodies to IgE.
Purified human IgE.
Indicated dilutions are recommended starting points for use of this product. Working concentrations should be determined by the investigator.
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*Balogh Z, Merétey K, Falus A, Bozsóky S: Serological abnormalities in juvenile chronic arthritis: a review of 46 cases. Ann Rheum Dis. 1980 Apr;39(2):129-34.
[Abstract] [Full Text]
*Brinkmann V, Heusser CH: T cell-dependent differentiation of human B cells into IgM, IgG, IgA, or IgE
plasma cells: high rate of antibody production by IgE plasma cells, but limited clonal expansion of IgE precursors. Cell Immunol. 1993 Dec;152(2):323-32.
*Gould HJ, Beavil RL, Vercelli D: IgE isotype determination: epsilon-germline gene transcription, DNA recombination and B-cell differentiation. Br Med Bull. 2000;56(4):908-24.
[Abstract] [Full Text]
Product Specific References
*Kaulfürst-Soboll H, Mertens M, Brehler R, von Schaewen A: Reduction of cross-reactive carbohydrate determinants in plant foodstuff: elucidation of clinical relevance and implications for allergy diagnosis. PLoS One. 2011 Mar 14;6(3):e17800. [Abstract]
For research use only. Not for drug, diagnostic or other use.
Fig. 1A Flow Cytometry analysis
Fig. 1B Flow Cytometry analysis
Flow Cytometry analysis of basophil activation upon stimulation of normal (heparin-treated) whole blood with combination of IL-3 and Goat anti-IgE polyclonal antibody.
Combination of anti-human IgE (BE5
) FITC and anti-human CD63 (MEM-259) PE-Dyomics 647 (cat. no. 1Y-343-T100) was used (analysis in basophil window).
Fig. 1A - staining of non-stimulated (control) sample
Fig. 1B - staining of IgE stimulated sample
Surface staining of IgE in human peripheral blood lymphocytes with anti-IgE (BE5
) purified, GAM-APC.