Ser162-Dependent inactivation of overproduced sucrose-phosphate synthase protein of maize leaf in transgenic rice plants.
نویسندگان
چکیده
To investigate the role of Ser162 in phosphorylation-dependent regulation of maize sucrose-phosphate synthase (SPS) activities in rice, transgenic rice plants expressing wild-type or mutagenized maize SPS were produced. Our results indicate that Ser162 was responsible for overproduction-induced inactivation of SPS protein and for light/ dark modulation of this protein in vivo.
منابع مشابه
Role and Regulation of Sucrose-phosphate Synthase in Higher Plants.
Sucrose-phosphate synthase (SPS; E.C. 2.4.1.14) is the plant enzyme thought to play a major role in sucrose biosynthesis. In photosynthetic and nonphotosynthetic tissues, SPS is regulated by metabolites and by reversible protein phosphorylation. In leaves, phosphorylation modulates SPS activity in response to light/dark signals and end-product accumulation. SPS is phosphorylated on multiple ser...
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عنوان ژورنال:
- Plant & cell physiology
دوره 41 8 شماره
صفحات -
تاریخ انتشار 2000