L-ORNITHINE PRODUCTION IN EUKARYOTIC CELLS
    93.
    发明申请
    L-ORNITHINE PRODUCTION IN EUKARYOTIC CELLS 审中-公开
    原核细胞中的L-选择素生产

    公开(公告)号:WO2016144247A1

    公开(公告)日:2016-09-15

    申请号:PCT/SE2016/050193

    申请日:2016-03-10

    Applicant: BIOPETROLIA AB

    Abstract: The present invention relates to the provision of genetically modified microbial cells, such as yeast cells with an improved ability for producing L-ornithine and its derivatives. Overproduction of L-ornithine is obtained in the first place by the down-regulation or attenuation of specially selected genes, wherein said genes encode enzymes involved in the L-ornithine consumption and/or degradation pathways. Further L-ornithine production ability is improved by down-regulation, attenuation, deletion or overexpression of specially selected genes, wherein said genes encode enzymes and/or proteins involved in the L-ornithine 'acetylated derivatives cycle', L-glutamate synthesis pathways, subcellular trafficking, TCA cycle, pyruvate carboxylation pathway, respiratory electron- transport chain, and the carbon substrates' assimilation machinery. The invention additionally provides a method to produce L-ornithine with said modified eukaryotic cells.

    Abstract translation: 本发明涉及提供具有改进的生产L-鸟氨酸及其衍生物的能力的转基因微生物细胞,例如酵母细胞。 首先通过特异选择的基因的下调或减弱获得L-鸟氨酸的过度产生,其中所述基因编码参与L-鸟氨酸消耗和/或降解途径的酶。 通过特异选择的基因的下调,减弱,缺失或过表达来改善L-鸟氨酸的生产能力,其中所述基因编码参与L-鸟氨酸'乙酰化衍生物循环'的酶和/或蛋白质,L-谷氨酸合成途径, 亚细胞运输,TCA循环,丙酮酸羧化途径,呼吸电子传递链和碳底物的同化机制。 本发明另外提供了用所述修饰的真核细胞产生L-鸟氨酸的方法。

Patent Agency Ranking