PP2C(PP2C-type protein phosphatases)蛋白磷酸酶是一类丝氨酸/苏氨酸残基蛋白磷酸酶,植物体内目前已经发现了4种PP2C蛋白磷酸酶:ABI,AtP2C-HAB1,AtPP2CA以及MP2C。大量的研究表明植物PP2C蛋白磷酸酶参与了ABA信号转导途径的负调控功能。就高等植物PP2C的分类及其对ABA信号转导途径的负调控功能的研究进展进行了综述。
【英文摘要】
The PP2C-type protein phosphatases(PP2Cs) is a distinct family of protein Ser/Thr phosphatases.Untill now,four PP2C have been found in plants,including ABI,AtP2C-HAB1,AtPP2CA and MP2C.Evidences indicated that the PP2C was involved in the negative control of ABA signaling,therefore,the category and the recent progress of PP2C in the regulation of PP2C in ABA transduction pathway in plants were briefly summarized.
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