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    • 1. 发明授权
    • Transferases, epimerases, polynucleotides encoding these and uses thereof
    • 转移酶,差向异构酶,编码这些的多核苷酸及其用途
    • US09157088B2
    • 2015-10-13
    • US12530416
    • 2008-03-07
    • William LaingSean Bulley
    • William LaingSean Bulley
    • C12N15/82C12N9/12C12N9/90
    • C12N15/8243C12N9/1241C12N9/90
    • The invention provides compositions and methods for modulating GDP-L-Galactose Guanyltransferase (also known as GDP-L-Galactose phosphorylase) activity; and/or GDP-D-Mannose epimerase activity; and/or ascorbate content in plants. The invention provides plants and plant cells with increased GDP-L-Galactose Guanyltransferase activity; and/or GDP-D-Mannose epimerase activity. The invention provides plants and plant cells with increased ascorbate content as a result of: over-expression of GDP-L-Galactose Guanyltransferase; over-expression of GDP-D-Mannose epimerase; or in particular over-expression of a combination of GDP-L-Galactose Guanyltransferase and GDP-D-Mannose epimerase.
    • 本发明提供调节GDP-L-半乳糖鸟苷酸转移酶(也称为GDP-L-半乳糖磷酸化酶)活性的组合物和方法; 和/或GDP-D-Mannose差向异构酶活性; 和/或抗坏血酸含量。 本发明提供了具有增加的GDP-L-半乳糖胍转移酶活性的植物和植物细胞; 和/或GDP-D-甘露糖差向异构酶活性。 本发明提供了具有增加的抗坏血酸含量的植物和植物细胞,其结果是:GDP-L-半乳糖鸟嘌呤转移酶的过表达; GDP-D-Mannose差向异构酶的过表达; 或特别是GDP-L-半乳糖胍转移酶和GDP-D-甘露糖差向异构酶的组合的过表达。