Gluconeogenesis Journal Article Phosphoenolpyruvate carboxykinase 73-89-2 817L1N4CKP Developing seeds EC 2.7.9.1 EC 4.1.1.31 EC 4.1.1.49 Evolution of C(4) and CAM plants Grape Kernel Malate Malates N762921K75 Nitrogen Nitrogen metabolism Organic acids Phosphoenolpyruvate Phosphoenolpyruvate Carboxykinase (ATP) Phosphoenolpyruvate Carboxylase Plant Proteins Pyruvate orthophosphate dikinase Pyruvate, Orthophosphate Dikinase Research Support, Non-U.S. Gov't Roots Vitis vinifera L. malic acid