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- W2091912939 endingPage "568" @default.
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- W2091912939 abstract "The identification of potential allergenic proteins is usually done by scanning a database of allergenic proteins and locating known allergens with a high sequence similarity. However, there is no universally accepted cut-off value for sequence similarity to indicate potential IgE cross-reactivity. Further, overall sequence similarity may be less important than discrete areas of similarity in proteins with homologous structure. To identify such areas, we first classified all allergens and their subdomains in the Structural Database of Allergenic Proteins (SDAP, http://fermi.utmb.edu/SDAP/) to their closest protein families as defined in Pfam, and identified conserved physicochemical property motifs characteristic of each group of sequences. Allergens populate only a small subset of all known Pfam families, as all allergenic proteins in SDAP could be grouped to only 130 (of 9318 total) Pfams, and 31 families contain more than four allergens. Conserved physicochemical property motifs for the aligned sequences of the most populated Pfam families were identified with the PCPMer program suite and catalogued in the webserver MotifMate (http://born.utmb.edu/motifmate/summary.php). We also determined specific motifs for allergenic members of a family that could distinguish them from non-allergenic ones. These allergen specific motifs should be most useful in database searches for potential allergens. We found that sequence motifs unique to the allergens in three families (seed storage proteins, Bet v 1, and tropomyosin) overlap with known IgE epitopes, thus providing evidence that our motif based approach can be used to assess the potential allergenicity of novel proteins." @default.
- W2091912939 created "2016-06-24" @default.
- W2091912939 creator A5006473765 @default.
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- W2091912939 creator A5034853603 @default.
- W2091912939 creator A5043184951 @default.
- W2091912939 date "2009-02-01" @default.
- W2091912939 modified "2023-10-17" @default.
- W2091912939 title "Characteristic motifs for families of allergenic proteins" @default.
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- W2091912939 doi "https://doi.org/10.1016/j.molimm.2008.07.034" @default.
- W2091912939 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/2631092" @default.