“…The 27kD gamma zein promoter was chosen for these experiments because it is one of the highest expressing zeins, and has been used to drive high expression of proteins in maize endosperm [92,263,264] which could be useful in situations where high expression of a nutritional protein is desired, or where maize is to be used to produce biopharmaceudicals and similar products for extraction. However, there is some indication that the 27kDa gamma zein is an allergen in pigs [265], potentially making increased expression of the 27kDa gamma zein undesirable for some applications, such as biofortification.…”