Peanut allergens and methods
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United States of America Patent
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Dec 28, 2004
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N/A
app pub date -
Nov 13, 1998
filing date -
Dec 29, 1995
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Expired
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Abstract
One of the major peanut allergens, Ara h I, was selected from cDNA expression library clones using Ara h I specific oligo-nucleotides and polymerase chain reaction technology. The Ara h I clone identified a 2.3 kb mRNA species on a Northern blot containing peanut poly A+RNA. DNA sequence analysis of the cloned inserts revealed that the Ara h I allergen has significant homology with the vicilin seed storage protein family found in most higher plants. The isolation of the Ara h I clones allowed the synthesis of this protein in E. coli cells and subsequent recognition of this. recombinant protein in immunoblot analysis using serum IgE from patients with peanut hypersensitivity.
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