Fig. 1.

Decision tree to identify non-allergen proteins fulfilling all first layer conditions. The ‘union’ operator was used for combining data and the ‘intersect’ operator was used for extracting common elements. For example, the ‘union’ operator was used to combine all the non-allergens predicted by allergen prediction algorithms and the ‘intersect’ operator was used to acquire the common candidates of all non-allergens fulfilling “First Layer” conditions