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    • 5. 发明申请
    • PLANT ACYL ACP THIOESTERASE SEQUENCES
    • 植物ACYL ACP硫酸酯酶序列
    • WO1995013390A2
    • 1995-05-18
    • PCT/US1994013131
    • 1994-11-10
    • CALGENE, INC.VOELKER, Toni, AloisYUAN, LingKRIDL, JeanHAWKINS, DeborahJONES, Aubrey
    • CALGENE, INC.
    • C12N15/82
    • A23D9/00C12N9/16C12N15/8247
    • This invention relates to plant thioesterases, specifically plant acyl-ACP thioesterases having substantial activity on palmitoyl-ACP substrates. DNA constructs useful for the expression of a plant palmitoyl-ACP thioesterase in a plant seed cell are described. Such constructs will contain a DNA sequence encoding the plant palmitoyl-ACP thioesterase of interest under the control of regulatory elements capable of preferentially directing the expression of the plant palmitoyl-ACP thioesterase in seed tissue, as compared with other plant tissues, when such a construct is expressed in a transgenic plant. This invention also relates to methods of using a DNA sequence encoding a plant palmitoyl-ACP thioesterase for the modification of the proportion of free fatty acids produced in a plant seed cell. Plant palmitoyl-ACP thioesterase sequences exemplified herein include Cuphea, leek, mango and elm. Transgenic plants having increased levels of C16:0 fatty acids in their seeds as the result of expression of these palmitoyl-ACP thioesterase sequences are also provided.
    • 本发明涉及植物硫酯酶,特别是具有对棕榈酰-ACP底物具有显着活性的植物酰基-ACP硫酯酶。 描述了可用于在植物种子细胞中表达植物棕榈酰-ACP硫酯酶的DNA构建体。 与其他植物组织相比,这样的构建体将含有编码植物棕榈酰-ACP硫酯酶的DNA序列,该调控元件能够优先指导植物棕榈酰-ACP硫酯酶在种子组织中的表达, 在转基因植物中表达。 本发明还涉及使用编码植物棕榈酰-ACP硫酯酶的DNA序列来修饰植物种子细胞中产生的游离脂肪酸的比例的方法。 本文例示的植物棕榈酰-ACP硫酯酶序列包括Cuphea,韭葱,芒果和榆树。 还提供了作为这些棕榈酰-ACP硫酯酶序列表达的结果,在其种子中具有增加的C16:0脂肪酸水平的转基因植物。
    • 7. 发明申请
    • PLANT MEDIUM-CHAIN THIOESTERASES
    • 植物中链链霉菌
    • WO1992020236A1
    • 1992-11-26
    • PCT/US1992004332
    • 1992-05-21
    • CALGENE, INC.VOELKER, Toni, AloisDAVIES, Huw, Maelor
    • CALGENE, INC.
    • A23D07/00
    • C07K14/415A23D9/00C12N9/16C12N15/8247C12P7/6418
    • By this invention, further properties and uses of plant medium-chain thioesterases are provided. In a first embodiment, this invention relates to plant seed and oil derived from that seed, which normally do not contain laurate, but now are found to contain laurate. In yet a different embodiment, this invention relates to a particular medium-chain thioesterase sequence, the Bay medium-chain thioesterase DNA sequence and to DNA constructs for the expression of this enzyme in a host cell. Other aspects of this invention relate to methods for using a plant medium-chain thioesterase. Expression of a plant medium-chain thioesterase in a bacterial cell to produce medium-chain fatty acids is provided. Methods to produce an unsaturated medium-chain thioesterase by the use of a plant medium-chain thioesterase are also described herein.
    • 通过本发明,提供了植物中链硫酯酶的进一步的性质和用途。 在第一个实施方案中,本发明涉及来自该种子的植物种子和油,其通常不含月桂酸酯,但现在发现含有月桂酸酯。 在另一个不同的实施方案中,本发明涉及特定的中链硫酯酶序列,Bay中链硫酯酶DNA序列和用于在宿主细胞中表达该酶的DNA构建体。 本发明的其它方面涉及使用植物中链硫酯酶的方法。 提供植物中链硫酯酶在细菌细胞中的表达以产生中链脂肪酸。 本文还描述了通过使用植物中链硫酯酶生产不饱和中链硫酯酶的方法。