Secretion of outer membrane proteins of gram-negative bacteria by means
of gram-positive host organisms
    1.
    发明授权
    Secretion of outer membrane proteins of gram-negative bacteria by means of gram-positive host organisms 失效
    通过革兰氏阳性宿主生物分泌革兰氏阴性细菌的外膜蛋白

    公开(公告)号:US5858727A

    公开(公告)日:1999-01-12

    申请号:US676378

    申请日:1996-07-18

    摘要: The invention relates to a process for producing outer membrane proteins of gram-negative bacteria by gram-positive host cells. To this end, a gene structure containing a gene coded for an outer membrane protein is constructed; in front of this gene there is a pro-gene sequence which codes for a propeptide of an export protein of a gram-positive bacterium. In front of the pro-gene sequence there is a pre-gene sequence which codes for a signal peptide of an export protein of a gram-positive bacterium. After the cloning of a gene structure thus constructed into a vector and transformation into a gram-positive bacterium, the outer membrane protein is expressed with a signal peptide and propeptide, transported through the membrane of the gram-positive host cell and released into the test of the culture.

    摘要翻译: PCT No.PCT / DE94 / 01394 Sec。 371日期:1996年7月18日 102(e)日期1996年7月18日PCT 1994年11月21日PCT PCT。 WO95 / 20048 PCT出版物 日期1995年7月27日本发明涉及通过革兰氏阳性宿主细胞产生革兰氏阴性细菌的外膜蛋白的方法。 为此,构建了含有外膜蛋白编码基因的基因结构体; 在该基因前面有一个pro-gene序列,其编码革兰氏阳性细菌的出口蛋白质的前肽。 在前基因序列前面有一个前基因序列,其编码革兰氏阳性细菌的出口蛋白质的信号肽。 克隆由此构建成载体并转化成革兰氏阳性细菌的基因结构后,外膜蛋白用信号肽和前肽表达,通过革兰氏阳性宿主细胞的膜转运并释放到测试中 的文化。

    Method For the Fermentative Production of L-Valine and Suitable Microorganism
    4.
    发明申请
    Method For the Fermentative Production of L-Valine and Suitable Microorganism 失效
    L-缬氨酸和合适的微生物发酵生产方法

    公开(公告)号:US20080153139A1

    公开(公告)日:2008-06-26

    申请号:US11663984

    申请日:2006-04-06

    IPC分类号: C12P13/08 C12N1/21

    CPC分类号: C12P13/08 C12N9/1096

    摘要: The invention relates to a method for producing L-valine and to a suitable microorganism. The inventive method is characterized by preferably enhancing the transaminase C activity of a coryneform bacterium, especially Corynebacteriuim glutamicum. The organisms so modified have a yield in L-valine which is 35.8% higher than that of non-modified organisms.

    摘要翻译: 本发明涉及L-缬氨酸和合适微生物的生产方法。 本发明的方法的特征在于优选增强棒状细菌,特别是谷氨酸棒杆菌(Corynebacteriuim glutamicum)的转氨酶C活性。 如此修饰的生物体在L-缬氨酸中的产率高于非改性生物体的35.8%。

    Production of L-isoleucine by means of recombinant microorganisms with
deregulated threonine dehydratase
    9.
    发明授权
    Production of L-isoleucine by means of recombinant microorganisms with deregulated threonine dehydratase 失效
    通过具有失调的苏氨酸脱水酶的重组微生物生产L-异亮氨酸

    公开(公告)号:US6107063A

    公开(公告)日:2000-08-22

    申请号:US669378

    申请日:1997-03-20

    CPC分类号: C12N9/88 C12P13/06

    摘要: The invention relates to processes for the microbial production of L-isoleucine. To this end, in a gene in vitro of a threonine dehydratse, one or more bases in the gene region coding the enzyme's allosteric domains are exchanged in such a way that at least one amino acid in the amino acid sequence of the allosteric domains of the enzyme is replaced by another so that the enzyme is no longer inhibited by L-isoleucine feedback. Furthermore, concrete amino acid exchanges in the amino acid sequence of the enzyme are effected in a gene in vitro of a threonin dehydratase of Corynebacterium glutamicum by base exchange both outside and inside and outside the gene region coding the allosteric domains of the enzyme si that, after the transformation of such mutated threonine dehydratase genes into a threonine or L-isoleucine-producing host cell, the latter repeatedly forms L-isoleucine.

    摘要翻译: PCT No.PCT / DE95 / 00017 Sec。 371日期1997年3月20日 102(e)1997年3月20日PCT PCT 1995年1月9日PCT公布。 WO95 / 19442 PCT公开号 日期1995年7月20日本发明涉及L-异亮氨酸的微生物生产方法。 为此,在苏氨酸脱水体外的基因的基因中,编码酶变构域的基因区域中的一个或多个碱基以这样的方式交换,使得至少一个氨基酸序列的变构域 酶被另一个替代,使得酶不再被L-异亮氨酸反馈抑制。 此外,酶的氨基酸序列中的具体氨基酸交换通过在编码酶si的变构结构域的基因区域的外部和外部的碱基交换体外在谷氨酸棒杆菌的苏氨酸脱水酶的基因中进行, 在将这种突变的苏氨​​酸脱水酶基因转化成产生苏氨酸或L-异亮氨酸的宿主细胞后,后者重复形成L-异亮氨酸。

    Process for obtaining sorbitol and gluconic acid or gluconate
usingZymomonas mobilis
    10.
    发明授权
    Process for obtaining sorbitol and gluconic acid or gluconate usingZymomonas mobilis 失效
    获得硫代酸和葡萄糖酸或葡萄糖的方法

    公开(公告)号:US5190869A

    公开(公告)日:1993-03-02

    申请号:US706333

    申请日:1991-05-28

    IPC分类号: C12P7/18 C12P7/58

    CPC分类号: C12P7/58 C12P7/18 Y10S435/822

    摘要: The long-term activity of the biocatalyst for the production of sorbitol and gluconic acid from an aqueous solution of fructose and glucose is considerably improved with the aid of permeabilized cells of Zymomonas mobilis immobilized using .kappa.-carrageenan that has been rigidified and then stabilized by K.sup.+ ions. Rigidification of .kappa.-carrageenan is preferably carried out by treatment with glutaraldehyde alone or by treatment with polyethyleneimine or hexamethylenediamine and subsequent exposure to glutaraldehyde. A buffer-free solution is preferred and the pH is maintained by adding Ca.sup.++ ions while simultaneously precipitating gluconic acid.

    摘要翻译: 借助于使用κ-卡拉胶来固定的运动发酵单胞菌的透化细胞,通过K + - 角叉菜胶固化,然后通过K +稳定化,生物催化剂从果糖和葡萄糖水溶液中生产山梨糖醇和葡萄糖酸的长期活性显着提高 离子。 κ-卡拉胶的刚性优选通过单独使用戊二醛处理或通过用聚乙烯亚胺或六亚甲基二胺处理,随后暴露于戊二醛进行。 优选无缓冲溶液,通过加入Ca ++离子同时沉淀葡萄糖酸来维持pH。