The invention relates to high-protein-content soybeans and methods of producing high-protein-content soybeans. The methods can relate to proteome rebalancing and regulating the abscisic acid (ABA) pathway. The methods can relate to modulating transcription factors such as AiP2. AiP2 modification can increase soybean protein content and indicates the strategic path to alter seed protein is contained within the mechanisms of abscisic acid control of seed development.