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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

The immunological relationship of epitopes on major tree pollen allergens.

The major allergens of birch (Bet v I), alder (Aln g I), hazel (Cor a I) and hornbeam ( Car b I) were investigated by means of high-resolution two-dimensional electrophoresis combined with immunoblotting. Eleven sera derived from patients allergic to birch pollen as well as mouse monoclonal antibodies BIP 1 and BIP 4, raised against Bet v I, were used as probes. Human IgE antibodies detected 10 spots in birch (Mr 17 kDa, pI 4.9-5.9); four spots in alder (Mr 18.5 kDa, pI 4.7-5.3); four spots in hazel (Mr 17 kDa, pI 5.0-5.8); and 12 + 7 spots in hornbeam (Mr 16.5 kDa, pI 4.9-6.6 and Mr 18 kDa, pI 5.2-6.7), respectively, representing major allergens. Each patient tested reacted in a similar fashion with the spot cluster(s) of a certain allergen. BIP 1 detected the same spot clusters as patients' IgE. BIP 4 reacted with the 17-, 18.5- and 18-kDa spots of birch, alder and hornbeam, but did not react with the 17-kDa spots of hazel and the 16.5-kDa spots of hornbeam. In inhibition experiments with birch pollen extract as inhibitor, IgE binding to Bet v I, as well as to Aln g I, Cor a I and Car b I was abolished, thus suggesting that IgE binding to major tree pollen allergens is confined to shared epitopes. These findings indicate that it might be sufficient to use only Bet v I for diagnostic procedures as well as for immunotherapy in patients with tree pollen allergy.[1]

References

  1. The immunological relationship of epitopes on major tree pollen allergens. Rohac, M., Birkner, T., Reimitzer, I., Bohle, B., Steiner, R., Breitenbach, M., Kraft, D., Scheiner, O., Gabl, F., Rumpold, H. Mol. Immunol. (1991) [Pubmed]
 
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