Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
2007293 | Peptides | 2008 | 8 Pages |
Abstract
Ric c 1 and Ric c 3 are the major castor bean allergens. In order to identify continuous IgE-epitopes in Ric c 1 and Ric c 3, pools of sera from rats immunized with a pool of 2S albumin from these seeds, Ric c 1 and Ric c 3 overlapping synthetic peptides, were used to screen for IgE-binding epitopes. The allergenic properties were monitored by mast cell degranulation assays, histamine quantification and human-IgE binding. Large and small chains isolated from these proteins present allergenic properties. Four continuous epitopes were identified in Ric c 3 and two in Ric c 1. This knowledge may allow the induction of protective antibody responses to antagonize the IgE recognition.
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Authors
S.P. Felix, R.O. Mayerhoffer, R.A. Damatta, M.A. VerĂcimo, V.V. Nascimento, O.L.T. Machado,