Zein protein characterized by electrophoretic mobility on isoelectric focusing gels. Maps near orp1. Genetic 2005 4 coordinates determined from these recombination and map data: umc42a -1- zpl2a -1- med63a; see MaizeGDB ID:934703. This gene was originally curated in MaizeGDB Database and the map position was displayed on the maize bins map if feasible.