Method for L-threonine production
    2.
    发明申请
    Method for L-threonine production 有权
    L-苏氨酸生产方法

    公开(公告)号:US20050136518A1

    公开(公告)日:2005-06-23

    申请号:US11047932

    申请日:2005-02-01

    CPC分类号: C12P13/08 C12N1/20

    摘要: A method for producing L-threonine using a microorganism is provided. In the method, additional one or more copies of each of the phosphoenolpyruvate carboxylase (ppc) gene and the threonine operon are integrated into a particular site of the chromosomal DNA of a microorganism, while its inherent ppc gene and threonine operon remain. Accordingly, two or more ppc genes and threonine operons are included in the chromosomal DNA of the microorganism to thereby enhance the expression of the ppc gene encoding an enzyme to convert phosphoenolpyruvate to a threonine biosynthesis precursor, oxaloacetete, and the genes encoding enzymes involved in the synthetic pathway of threonine from oxaloacetate, including thrA (aspartokinasel-homoserine dehydrogenase), thrB (homoserine kinase), and thrC (threonine synthase), thereby markedly increasing L-threonine productivity.

    摘要翻译: 提供了使用微生物生产L-苏氨酸的方法。 在该方法中,每个磷酸烯醇丙酮酸羧化酶(ppc)基因和苏氨酸操纵子的另外一个或多个拷贝整合到微生物的染色体DNA的特定位点,而其固有的ppc基因和苏氨酸操纵子保留。 因此,在微生物的染色体DNA中包含两个以上的ppc基因和苏氨酸操纵子,从而增强编码酶的ppc基因的表达,以将磷酸烯醇丙酮酸转化为苏氨酸生物合成前体,oxaloacetete,以及编码参与 苏氨酸从草酰乙酸(包括thrA(天冬氨酸高丝氨酸脱氢酶)),thrB(高丝氨酸激酶)和thrC(苏氨酸合成酶)的合成途径,从而显着提高L-苏氨酸生产力。

    Process for preparing a vaccine against pseudomonas aeruginosa using
attenuated strains
    3.
    发明授权
    Process for preparing a vaccine against pseudomonas aeruginosa using attenuated strains 失效
    使用减毒菌株制备针对铜绿假单胞菌的疫苗的方法

    公开(公告)号:US5861163A

    公开(公告)日:1999-01-19

    申请号:US773330

    申请日:1996-12-24

    摘要: The present invention relates to a vaccine prepared from an attenuated Pseudomonas aeruginosa strains which are obtained by isolating Pseudomonas aeruginosa in a pure state according to the Fisher-Devlin immunotype and then repeatedly purifying the isolated strain, particularly CFCPA 10142 (KCCM 10029), CFCPA 20215 (KCCM 10030), CFCPA 30720 (KCCM 10031), CFCPA 40057 (KCCM 10032), CFCPA 50243 (KCCM 10033), CFCPA 60534 (KCCM 10034) and CFCPA 70018 (KCCM 10035) strains. In addition, the present invention relates to a process for preparing the vaccine for immunization against Pseudomonas aeruginosa infection which contains cell wall proteins having molecular weights ranging from 10,000 to 100,000. The cell wall protein component of the attenuated strain is non-pathogenic and safe, and exhibits excellent antibody formation capacity and is useful for preparation of a vaccine and therapeutic agent. The cell wall proteins exhibit an excellent cross-protective efficacy for various Pseudomonas aeruginosa strains and a superior antibody inducing property.

    摘要翻译: 本发明涉及由减毒铜绿假单胞菌菌株制备的疫苗,其通过根据Fisher-Devlin免疫型分离纯状态的绿脓假单胞菌,然后重复纯化分离的菌株,特别是CFCPA 10142(KCCM 10029),CFCPA 20215 (KCCM 10030),CFCPA 30720(KCCM 10031),CFCPA 40057(KCCM 10032),CFCPA 50243(KCCM 10033),CFCPA 60534(KCCM 10034)和CFCPA 70018(KCCM 10035)菌株。 此外,本发明涉及一种制备用于免疫铜绿假单胞菌感染的疫苗的方法,其包含分子量范围为10,000至100,000的细胞壁蛋白。 减毒菌株的细胞壁蛋白质组分是非致病性和安全性的,并且表现出优异的抗体形成能力,并且可用于制备疫苗和治疗剂。 细胞壁蛋白对于各种铜绿假单胞菌菌株表现出优异的交叉保护作用和优异的抗体诱导性质。

    Method for L-threonine production
    4.
    发明授权
    Method for L-threonine production 有权
    L-苏氨酸生产方法

    公开(公告)号:US07368266B2

    公开(公告)日:2008-05-06

    申请号:US11047932

    申请日:2005-02-01

    CPC分类号: C12P13/08 C12N1/20

    摘要: A method for producing L-threonine using a microorganism is provided. In the method, additional one or more copies of each of the phosphoenolpyruvate carboxylase (ppc) gene and the threonine operon are integrated into a particular site of the chromosomal DNA of a microorganism, while its inherent ppc gene and threonine operon remain. Accordingly, two or more ppc genes and threonine operons are included in the chromosomal DNA of the microorganism to thereby enhance the expression of the ppc gene encoding an enzyme to convert phosphoenolpyruvate to a threonine biosynthesis precursor, oxaloacetete, and the genes encoding enzymes involved in the synthetic pathway of threonine from oxaloacetate, including thrA (aspartokinasel-homoserine dehydrogenase), thrB (homoserine kinase), and thrC (threonine synthase), thereby markedly increasing L-threonine productivity.

    摘要翻译: 提供了使用微生物生产L-苏氨酸的方法。 在该方法中,每个磷酸烯醇丙酮酸羧化酶(ppc)基因和苏氨酸操纵子的另外一个或多个拷贝整合到微生物的染色体DNA的特定位点,而其固有的ppc基因和苏氨酸操纵子保留。 因此,在微生物的染色体DNA中包含两个以上的ppc基因和苏氨酸操纵子,从而增强编码酶的ppc基因的表达,以将磷酸烯醇丙酮酸转化为苏氨酸生物合成前体,oxaloacetete,以及编码参与 苏氨酸从草酰乙酸(包括thrA(天冬氨酸高丝氨酸脱氢酶)),thrB(高丝氨酸激酶)和thrC(苏氨酸合成酶)的合成途径,从而显着提高L-苏氨酸生产力。