Assessing the potential allergenicity of transferred proteins remains
one of the most difficult aspects of the overall safety assessment for
transgenic foods. Allergenicity assessment must consider several fact
ors, including the source of the transferred protein, expression level
s, the physical and chemical properties of the protein, and similarity
to known allergens. Although no single factor can be considered defin
itive, consideration of all these factors together may provide some in
dication of potential allergenicity.