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公开(公告)号:WO02057442A1
公开(公告)日:2002-07-25
申请号:PCT/JP2002/000326
申请日:2002-01-18
CPC classification number: C12N9/93 , C12P7/625 , C12Y603/02006
Abstract: To construct a system for producing an industrially useful substance through gene recombination by utilizing characteristics of a yeast, it is intended to provide a yeast in which a specific gene alone has been disrupted and to which auxotrophy is imparted. A yeast strain in which ADE1 gene has been disrupted is constructed by homologous recombination with a chromosomal DNA by using an ADE1 gene fragment encoding phosphoribosylaminoimidazole succinocarboxamide synthase (EC6.3.2.6) of Candida maltosa . Then, this disrupted strain is transformed by a gene expression cassette containing a biodegradable polyester synthase gene and the obtained transformant is cultured to thereby produce biodegradable polyester.
Abstract translation: 为了通过利用酵母的特性通过基因重组构建工业上有用的物质的制备体系,其目的在于提供单独的特定基因已被破坏并赋予营养缺陷型的酵母。 ADE1基因已被破坏的酵母菌株是通过使用编码奇异假丝酵母的磷酸核糖氨基咪唑琥珀酰胺合成酶(EC6.3.2.6)的ADE1基因片段与染色体DNA进行同源重组而构建的。 然后,通过含有可生物降解的聚酯合酶基因的基因表达盒转化该破坏的菌株,培养得到的转化体,从而生成可生物降解的聚酯。
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公开(公告)号:WO03091431A8
公开(公告)日:2005-02-17
申请号:PCT/JP0305464
申请日:2003-04-28
Applicant: KIRIN BREWERY , AIST , KOBAYASHI KAZUO , KITAGAWA YOSHINORI , KOMEDA TOSHIHIRO , KAWASHIMA NAGAKO , JIGAMI YOSHIFUMI , CHIBA YASUNORI
Inventor: KOBAYASHI KAZUO , KITAGAWA YOSHINORI , KOMEDA TOSHIHIRO , KAWASHIMA NAGAKO , JIGAMI YOSHIFUMI , CHIBA YASUNORI
IPC: C07K16/24 , C12N1/14 , C12N1/19 , C12N9/00 , C12N9/02 , C12N9/04 , C12N9/10 , C12N9/24 , C12N9/60 , C12N9/88 , C12P19/04 , C12P19/26 , C12P21/00 , C12P21/02 , C12N15/09 , C12N9/50
CPC classification number: C12P19/26 , C07K16/243 , C07K2317/21 , C12N1/14 , C12N9/0006 , C12N9/0008 , C12N9/1048 , C12N9/1051 , C12N9/2488 , C12N9/60 , C12N9/88 , C12N9/93 , C12P21/02 , C12Y101/01085 , C12Y101/03013 , C12Y102/01012 , C12Y302/01024 , C12Y402/01019 , C12Y603/02006
Abstract: It is intended to provide a process for producing a glycoprotein having a mammalian type sugar chain characterized by comprising transferring and expressing alpha-1,2-mannosidase in a sugar chain biosynthesis pathway gene mutant of a methylotroph yeast under the control by a potent promoter, culturing in a medium the methylotroph yeast cells having a foreign gene transferred thereinto, and then harvesting the glycoprotein having the mammalian type sugar chain from the culture medium. Using a newly bred methylotroph yeast carrying a sugar chain mutation, a neutral sugar chain identical with a high mannose type sugar chain produced by mammalian cells such as human cells or a glycoprotein having such a neutral sugar chain can be produced in a large amount at a high purity. By transferring a gene in a mammalian type sugar chain biosynthesis pathway into the above-described mutant, a mammalian type sugar chain such as a hybrid sugar chain or a complex sugar chain or a protein having a mammalian type sugar chain can be efficiently produced.
Abstract translation: 旨在提供一种具有哺乳动物型糖链的糖蛋白的制备方法,其特征在于包括通过有效启动子控制的甲基营养酵母的糖链生物合成途径基因突变体中转移和表达α-1,2-甘露糖苷酶, 在培养基中培养具有转移外源基因的甲基营养酵母细胞,然后从培养基中收获具有哺乳动物型糖链的糖蛋白。 使用携带糖链突变的新繁殖的甲基营养酵母,可以以大量的生成与哺乳动物细胞如人细胞或具有中性糖链的糖蛋白相同的高甘露糖型糖链的中性糖链 高纯度 通过将哺乳动物型糖链生物合成途径中的基因转移到上述突变体中,可以有效地制备哺乳动物型糖链如杂合糖链或复合糖链或具有哺乳动物型糖链的蛋白质。
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公开(公告)号:WO2003091431A1
公开(公告)日:2003-11-06
申请号:PCT/JP2003/005464
申请日:2003-04-28
IPC: C12N15/09
CPC classification number: C12P19/26 , C07K16/243 , C07K2317/21 , C12N1/14 , C12N9/0006 , C12N9/0008 , C12N9/1048 , C12N9/1051 , C12N9/2488 , C12N9/60 , C12N9/88 , C12N9/93 , C12P21/02 , C12Y101/01085 , C12Y101/03013 , C12Y102/01012 , C12Y302/01024 , C12Y402/01019 , C12Y603/02006
Abstract: 本発明は、メチロトロフ酵母の糖鎖生合成系酵素遺伝子変異株に強力なプロモーターの支配下にてα-1,2-マンノシダーゼを導入・発現させ、更に異種遺伝子を導入したメチロトロフ酵母細胞を培地に培養し、培養物より哺乳類型糖鎖を有する糖蛋白質を得ることを特徴とする、哺乳類型糖鎖を有する糖蛋白質の製造方法を提供する。新規に育種した糖鎖変異メチロトロフ酵母を用い、ヒトなど哺乳類細胞の生産するハイマンノース型と同一の中性糖鎖、あるいは同一の中性糖鎖を有する糖蛋白質を多量かつ純度よく生産することができる。また更に当該変異株に哺乳類型糖鎖の生合成系遺伝子を導入することにより、ハイブリッド型、複合型等の哺乳類型糖鎖、あるいは哺乳類型糖鎖を有する蛋白質を効率的に生産することができる。
Abstract translation: 旨在提供一种具有哺乳动物型糖链的糖蛋白的制备方法,其特征在于包括通过有效启动子控制的甲基营养酵母的糖链生物合成途径基因突变体中转移和表达α-1,2-甘露糖苷酶, 在培养基中培养具有转移外源基因的甲基营养酵母细胞,然后从培养基中收获具有哺乳动物型糖链的糖蛋白。 使用携带糖链突变的新繁殖的甲基营养酵母,可以以大量的生成与哺乳动物细胞如人细胞或具有中性糖链的糖蛋白相同的高甘露糖型糖链的中性糖链 高纯度 通过将哺乳动物型糖链生物合成途径中的基因转移到上述突变体中,可以有效地制备哺乳动物型糖链如杂合糖链或复合糖链或具有哺乳动物型糖链的蛋白质。
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