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    • 2. 再颁专利
    • DNA sequence useful for the production of polyhydroxyalkanoates
    • 可用于生产聚羟基链烷酸酯的DNA序列
    • USRE37543E1
    • 2002-02-05
    • US09570842
    • 2000-05-12
    • Niels KrügerAlexander Steinbüchel
    • Niels KrügerAlexander Steinbüchel
    • C12N121
    • C12P7/625C12N9/1029C12N15/8243
    • A genomic fragment harboring the gene phaG was cloned by phenotype complementation of Pseudomonas putida KT2440 mutants, defective in the polyhydroxyalkanoic acid (PHA) synthesis via de novo fatty acid biosynthesis but not affected in PHA biosynthesis via fatty acid &bgr;-oxidation. The 885-bp phaG gene encodes a protein of 295 amino acids with a molecular weight of 33.876 Da. The transcriptional induction of phaG could be observed under conditions of PHA synthesis via de novo fatty acid biosynthesis whereas no induction was detected under conditions which favor PHA synthesis via fatty acid degradation by &bgr;-oxidation. The phaG gene is useful for the production of PHAs in bacteria and plants.
    • 携带基因phaG的基因组片段通过假单胞菌属假单胞菌KT2440突变体的表型互补克隆,其通过从头脂肪酸生物合成在聚羟基链烷酸(PHA)合成中缺陷,但通过脂肪酸β-氧化不受PHA生物合成的影响。 885 bp的phaG基因编码295个氨基酸的蛋白质,分子量为33.876Da。 phaG的转录诱导可以通过从头脂肪酸生物合成的PHA合成条件下观察到,而在通过β-氧化的脂肪酸降解有利于PHA合成的条件下,没有检测到诱导。 phaG基因可用于在细菌和植物中生产PHAs。