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    • 2. 发明申请
    • CO-EXPRESSION OF ZEIN PROTEINS
    • IN蛋白的共表达
    • WO02086077A2
    • 2002-10-31
    • PCT/US0212646
    • 2002-04-18
    • UNIV NEW MEXICO STATE TECH TRAKEMP JOHN DRANDALL JENNIFER J
    • KEMP JOHN DRANDALL JENNIFER J
    • C07K14/425C12N15/62C12N15/82C12N
    • C12N15/62C07K14/425C07K2319/02C12N15/8251
    • Methods and constructs for transformed plants and plant tissues that are capable of expressing high levels of stable proteins localized as protein bodies within the plant cell. Transformed plants co-expressing high levels of both the 15 kD and 10 kD zein proteins are disclosed which accumulate to high levels as protein bodies in the vegetative tissue of the plant. Transformed plants co-expressing the 15 kD and 10 kD zein proteins are useful for providing forage crops containing increased levels of sulfur containing amino acids, such as methionine, in the diet of animals that normally feed on such crops. In one embodiment, a stable protein body is expressed in a plant or plant tissue as a fusion protein comprising both the 15 kD and 10 kD zein proteins operably linked by a polypeptide or peptide linker. The protein bodies provided in the present invention are resistant to rumin digestion or environmental degradation.
    • 能够表达高水平的稳定蛋白质的转化植物和植物组织的方法和构建体,其定位为植物细胞内的蛋白质体。 公开了共表达高水平的15kD和10kD玉米醇溶蛋白的转化植物,其在植物的营养组织中作为蛋白质体累积到高水平。 共同表达15kD和10kD玉米醇溶蛋白的转化植物可用于在通常饲养这种作物的动物的饮食中提供含有含量高的含硫氨基酸(例如甲硫氨酸)的饲料作物。 在一个实施方案中,稳定的蛋白质体在作为融合蛋白的植物或植物组织中表达,所述融合蛋白包含通过多肽或肽接头可操作地连接的15kD和10kD的玉米醇溶蛋白。 在本发明中提供的蛋白质体对抗紫苏消化或环境降解是有抗性的。