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从每公斤萌发２４ｈ的玉米胚两酮粉中可提纯得６３ｍｇ的钙调素（ＣａＭ），这是目前从每公斤植物材料中所提纯得ＣａＭ的最高记录。对其理化性质的研究表明，玉米胚ＣａＭ有较高的生物学活性，能较好地激活磷酸二酯酶，其紫外吸收光谱，ＳＤＳ－ＰＡＧＥ电泳行为及氨基酸组成与其它的植物ＣａＭ相似。上述结果表明玉米胚是１个提取植物ＣａＭ的适宜材料。
63 mg calmodulin (CaM) was purified from the corn embryo dione powder per kilogram of germination for 24 h, which is the highest number of CaM presently purified from each kilogram of plant material. Studies on its physicochemical properties showed that CaM of maize embryo had higher biological activity and could activate phosphodiesterase well. Its UV absorption spectrum, SDS-PAGE electrophoresis behavior and amino acid composition were similar to those of other plant CaM. The above results show that corn germ is a suitable material for plant CaM extraction.