Transgenic plants overproducing threonine and lysine
申请人:YEDA RESEARCH AND DEVELOPMENT COMPANY LIMITED
公开号:EP0485970A2
公开(公告)日:1992-05-20
A chimeric gene construct comprising a DNA sequence encoding an enzyme having aspartate kinase (AK) activity is provided, which is capable of expression in plant cells with subsequent increased production Of threonine. Transgenic plants containing in their cells said chimeric gene overproduce threonine and transgenic plants containing in their cells said chimeric gene and a second chimeric gene comprising a DNA sequence coding for an enzyme having dihydrodipicolinate synthase (DHPS) activity, overproduce both threonine and lysine. The transgenic plants are resistant to lysine and threonine, to derivative: thereof and to selective inhibitors Of the plant enzymes DHFS or AK, and thus these compounds may be used as selective herbicides in locus where the transgenic plants are cultivated.
提供了一种嵌合基因构建体,该构建体包含编码具有天冬氨酸激酶(AK)活性的酶的 DNA 序列,它能够在植物细胞中表达,从而增加苏氨酸的产量。细胞中含有所述嵌合基因的转基因植物会过量产生苏氨酸,而细胞中含有所述嵌合基因和第二种嵌合基因的转基因植物会过量产生苏氨酸和赖氨酸。转基因植物对赖氨酸和苏氨酸、它们的衍生物以及植物酶 DHFS 或 AK 的选择性抑制剂具有抗性,因此这些化合物可在种植转基因植物的地方用作选择性除草剂。
New enzymes and method for preparing hydroxylated L-lysine or L-ornithine and analogs thereof
申请人:COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX
ENERGIES ALTERNATIVES
公开号:EP2876156A1
公开(公告)日:2015-05-27
The present invention relates to new enzymes displaying L-lysine or L-ornithine hydroxylase activity and their uses for preparing compounds of interest, in particular hydroxy-L-lysine, hydroxy-L-ornithine and hydroxylated diamino alkanes.
PRODUCTION METHOD FOR L-LYSINE HYDROXYLASE AND HYDROXY-L-LYSINE USING SAME, AND PRODUCTION METHOD FOR HYDROXY-L-PIPECOLIC ACID
申请人:API Corporation
公开号:EP2889378A1
公开(公告)日:2015-07-01
The present invention aims to provide a method for efficiently producing hydroxy-L-lysine. The present invention provides a method for producing hydroxy-L-lysine, the method comprising allowing 2-oxoglutarate-dependent L-lysine hydroxylase, a cell containing 2-oxoglutarate-dependent L-lysine hydroxylase, a processed product of the cell, and/or a culture broth obtained by culturing the cell, to act on L-lysine to produce hydroxy-L-lysine represented by the following General Formula (I) (wherein each of R1, R2 and R3 represents a hydrogen atom or hydroxyl group, with the proviso that at least one of R1, R2 and R3 represents a hydroxyl group).