Unger, E. Dominant Negative Mutants of Opaque2 Suppress Transactivation of a 22-kD Zein Promoter by Opaque2 in Maize Endosperm Cells. [electronic resource] - The Plant cell Aug 1993 - 831-841 p. digital Publication Type: Journal Article ISSN: 1532-298X Standard No.: 10.1105/tpc.5.8.831 doi