COUPLED, SELF-SUFFICIENT BIOTRANSFORMATION OF CHENODEOXYCHOLIC ACID TO URSODEOXYCHOLIC ACID AND NOVEL ENZYME MUTANTS APPLICABLE IN SAID PROCESS
    1.
    发明申请
    COUPLED, SELF-SUFFICIENT BIOTRANSFORMATION OF CHENODEOXYCHOLIC ACID TO URSODEOXYCHOLIC ACID AND NOVEL ENZYME MUTANTS APPLICABLE IN SAID PROCESS 审中-公开
    陈生二氧化碳与过氧化新陈代谢酶偶联,自足生物转化及新型酶促突变体在酵母过程中的应用

    公开(公告)号:WO2017220486A2

    公开(公告)日:2017-12-28

    申请号:PCT/EP2017/064924

    申请日:2017-06-19

    CPC classification number: C12P33/00 C12N9/0006 C12P33/02

    Abstract: The present invention relates to a coupled biotransformation process of converting chenodeoxycholic acid (CDCA) and related compounds to ursodeoxycholic acid (UDCA) and related compounds. It also relates to the cloning, expression, and biochemical characterization of a novel NADP + -dependent 7α-hydroxysteroid dehydrogenase (7α-HSDH) from Clostridium difficile , cofactor switch mutants thereof, and their application for the oxidation of bile acids. A further aspect of the invention relates to novel NADP-dependent cofactor switch mutants of the NADP + -dependent 7α-HSDH of E. coli and their application for the oxidation of bile acids.

    Abstract translation: 本发明涉及将鹅去氧胆酸(CDCA)和相关化合物转化为熊脱氧胆酸(UDCA)和相关化合物的偶联生物转化方法。 本发明还涉及来自艰难梭菌Clostridium difficile的新型NADP +依赖性7α-羟基类固醇脱氢酶(7α-HSDH),其辅因子开关突变体的克隆,表达和生物化学表征 ,以及它们在胆汁酸氧化中的应用。 本发明的另一方面涉及E的NADP +依赖性7α-HSDH的新型NADP依赖性辅助因子开关突变体。 大肠杆菌和它们用于氧化胆汁酸的应用。

    一种熊去氧胆酸的制备方法及其制备用酶1

    公开(公告)号:WO2018126468A1

    公开(公告)日:2018-07-12

    申请号:PCT/CN2017/070604

    申请日:2017-01-09

    CPC classification number: C12P33/00 C12P33/02

    Abstract: 本发明涉及一种利用生物酶催化技术制备熊去氧胆酸的方法及其制备用7β-类固醇脱氢酶。该方法以3α-羟基-7氧代-5β-胆烷酸为底物,在NADP、葡萄糖、葡萄糖脱氢酶以及缓冲溶液存在的条件下,用7β-类固醇脱氢酶催化3α-羟基-7氧代-5β-胆烷酸制备熊去氧胆酸,其中7β-类固醇脱氢酶来源于扭链瘤胃球菌 Ruminococcus torques ATCC 27756。该方法操作简单、反应条件温和易控、反应时间短、对底物的转化率高达99.7%以上,所获得的产品的含量在98.5%以上。

    NOVEL 12 ALPHA-HYDROXYSTEROID DEHYDROGENASES, PRODUCTION AND USE THEREOF
    5.
    发明申请
    NOVEL 12 ALPHA-HYDROXYSTEROID DEHYDROGENASES, PRODUCTION AND USE THEREOF 审中-公开
    新12ALPHA羟,生产和使用

    公开(公告)号:WO2009118176A3

    公开(公告)日:2010-01-07

    申请号:PCT/EP2009002190

    申请日:2009-03-25

    CPC classification number: C12P33/02 C12N9/0006 C12Y101/01176

    Abstract: The invention relates to 12 a-hydroxysteroid dehydrogenases, nucleic acid sequences coding for the same, expression cassettes and vectors, recombinant microorganisms containing the corresponding coding nucleic acid sequences, a method for producing said 12 a-hydroxysteroid dehydrogenases, a method for enzymatic oxidation of 12 a-hydroxysteroids using said enzyme, a method for enzymatic reduction of 12-ketosteroids using said enzyme, a method for qualitative or quantitative determination of 12-ketosteroids and/or12a-hydroxysteroids using said 12a-hydroxysteroid dehydrogenases and a method for production of ursodesoxycholic acid, comprising the enzyme-catalysed cholic acid oxidation using said 12 a-hydroxysteroid dehydrogenases.

    Abstract translation: 本发明涉及新的12-羟基类,用于编码的核酸序列,表达盒和载体; 含对应的编码核酸序列的重组微生物; 用于这种12A羟脱氢酶的制备方法; 过程用于使用这样的酶,用于酶还原的使用这样的酶12-酮甾族化合物的方法12A羟基甾类的酶促氧化; 一种用于定性或定量测定的使用根据本发明的图12A-羟基脱氢酶12酮类固醇和12a羟基甾族化合物的方法; 以及用于制备熊去氧胆酸,其包含根据本发明使用的酶催化Cholsäureoxidation12A羟基类脱氢酶的方法。

    APPLICATION OF CLOUD POINT SYSTEM IN BIOLOGICAL TRANSFORMING

    公开(公告)号:WO2005014845A1

    公开(公告)日:2005-02-17

    申请号:PCT/CN2004/000746

    申请日:2004-07-05

    CPC classification number: C12P33/02 C12N1/38

    Abstract: The invention relates to technology of microorganism. The invention declares a method of using cloud point system in biological transforming. The method forms a cloud point system below the microbiological transformating culturing temperature using one kind or more than one kind of nonionic surfactant solution, and said system acts as transformation medium of microorganism. The system is suitable to microbiological transformating of hydrophobe compound. The method of the invention has advantages of excluding the inhibition to the growing of cells with substrates and products. It also can exclude the decompound of products. The cloud point system in this invention forming a microcosmic emulsion in the state of oil in water and water in oil. The drop of surfactant can improve the solubility and the biological use ratio of substrates and exclude the inhibition to the growing of cells with substrates, and it is the storehouse of substrates and the extractant of products. There is some bleb in the continuous surfactant, which like a microreactor. The bleb can let the microorganism beyond the poisoning of surfactant, and improve the biological compatibility.

    PROCESS FOR PRODUCING 4-PREGNENE-3,20-DIONE AND ITS DERIVATIVES
    7.
    发明申请
    PROCESS FOR PRODUCING 4-PREGNENE-3,20-DIONE AND ITS DERIVATIVES 审中-公开
    生产4-丙氨酸-3,20-二酮及其衍生物的方法

    公开(公告)号:WO1992003571A1

    公开(公告)日:1992-03-05

    申请号:PCT/DE1991000620

    申请日:1991-07-30

    CPC classification number: C12P33/02 Y10S435/863

    Abstract: The description relates to a process for producing 4-pregnene-3,20-dione and its derivatives of general formula (I) in which: R1 is a hydrogen or fluorine atom or a methyl group; R2 is a hydrogen atom of a hydroxy group; and R3 and R4 together represent a carbon-carbon bond or R3 is a hydrogen atom, a hydroxy group or an alkanoyloxy group with up to 6 carbon atoms; and R4 is a hydrogen atom or a methyl group; whereby a pregnane derivative of general formula (II) in which: R1, R3 and R4 have the significance given above, ..... represents a single or double bond, R5 is a hydrogen atom, a hydroxy group or an alkanoyloxy group with a maximum of 6 carbon atoms, and R6 is a hydrogen atom or an alkanoyl group with a maximum of 6 carbon atoms, is fermented with a bacterial culture of the mycobacterium species, NRRL B-3805.

    Abstract translation: 描述涉及生产4-孕烯-3,20-二酮及其通式(I)的衍生物的方法,其中:R1是氢或氟原子或甲基; R2是羟基的氢原子; R3和R4一起代表碳 - 碳键,或R3是氢原子,羟基或至多6个碳原子的烷酰氧基; R4为氢原子或甲基; 其中通式(II)的孕烷衍生物其中:R1,R3和R4具有上述含义,.....表示单键或双键,R5表示氢原子,羟基或烷酰氧基, 最多6个碳原子,R6是氢原子或最多6个碳原子的烷酰基,用分枝杆菌种NRRL B-3805的细菌培养物发酵。

    3ALPHA-HYDROXYSTEROID DEHYDROGENASE-MUTANTEN UND VERFAHREN ZUR HERSTELLUNG VON URSODESOXYCHOLSÄURE
    8.
    发明申请
    3ALPHA-HYDROXYSTEROID DEHYDROGENASE-MUTANTEN UND VERFAHREN ZUR HERSTELLUNG VON URSODESOXYCHOLSÄURE 审中-公开
    3-α-羟基类固醇脱氢酶突变体及其制造方法熊去氧胆酸

    公开(公告)号:WO2016023933A1

    公开(公告)日:2016-02-18

    申请号:PCT/EP2015/068514

    申请日:2015-08-12

    Abstract: Die Erfindung betrifft neuartige 3α-Hydroxysteroid Dehydrogenase-Mutanten, die für diese Enzym-Mutanten kodierenden Sequenzen, Verfahren zur Herstellung der Enzym-Mutanten und deren Verwendung bei enzymatischen Umsetzungen von Cholsäureverbindungen, und insbesondere bei der Herstellung von Ursodesoxycholsaure (UDCS); Gegenstand der Erfindung sind auch neuartige Verfahren zur Synthese von UDCS unter Verwendung der Enzym-Mutanten; sowie die Herstellung von UDCS unter Verwendung rekombinanter, mehrfach modifizierter Mikroorganismen.

    Abstract translation: 本发明涉及新的3α羟基类固醇脱氢酶的突变体编码这些突变型酶的序列,制备,特别是在Ursodesoxycholsaure(UDC)的制造中的突变酶及其在Cholsäureverbindungen的酶反应使用的方法; 本发明还涉及一种用于UDC的使用突变型酶合成的新方法; 和UDC的使用重组生产,乘法修饰的微生物。

    VERFAHREN ZUR HERSTELLUNG VON STEROIDDERIVATEN DURCH REDUKTION VON OXOSTEROIDVERBINDUNGEN ODER DURCH OXIDATION VON HYDROXYSTEROIDVERBINDUNGEN UNTER VERWENDUNG EINER HYDROXYSTEROIDDEHYDROGENASE
    10.
    发明申请

    公开(公告)号:WO2007118644A1

    公开(公告)日:2007-10-25

    申请号:PCT/EP2007/003197

    申请日:2007-04-11

    CPC classification number: C12P33/02 C12P33/16 C12P41/002

    Abstract: Ein Verfahren zur enantioselektiven enzymatischen Reduktion von Verbindungen, die eine Steroidstruktur (ABCD), einschließlich eines oder mehrerer Heteroatome, einer oder mehrerer Doppelbindungen und/oder eines Aromaten in der Ringstruktur, umfassen und mindestens eine Oxogruppe an der Position 3, 7, 11, 12 oder 17 des Steroidringsystems oder in α-Stellung an irgendeinem Kohlenstoffrest am Steroidgerüst aufweisen (=Oxosteroidverbindung/Hydroxysteroidverbindung), wobei die Oxosteroidverbindung mit einer Hydroxysteroiddehydrogenase in Gegenwart eines Cofactors NADH oder NADPH reduziert wird, ist dadurch gekennzeichnet, dass, a) die Oxosteroidverbindung in einer Konzentration von >50 g/l im Reaktionsansatz vorliegt, b) der durch die Hydroxysteroiddehydrogenase gebildete oxidierte Cofactor NAD oder NADP kontinuierlich durch Oxidation eines sekundären Alkohols der allgemeinen Formel R x R y CHOH, wobei R x , R y unabhängig voneinander Wasserstoff, verzweigtes oder unverzweigtes Cl-C8-Alkyl darstellen und C insgesamt ≥ 3, oder durch Oxidation eines C4-C6-Cycloalkanols regeneriert wird, und, c) zur Oxidation des sekundären Alkohols der allgemeinen Formel R X R Y CHOH bzw. des Cycloalkanols eine zusätzliche Oxidoreduktase/Alkoholdehydrogenase eingesetzt wird.

    Abstract translation: 在位置3处,7,11,12,用于对映选择性酶促还原,其具有类固醇结构(ABCD),包括一个或多个杂原子,在环结构中的一个或多个双键和/或芳族化合物包括这样的化合物的方法,和至少一个氧代基团 或类固醇环系统17,或具有在残留在甾族化合物骨架(= oxosteroid化合物/羟基)的任何碳上的一个位置,在所述分析中辅因子NADH或NADPH的存在下,羟基类固醇脱氢酶oxosteroid化合物被还原,其特征在于,a)在所述oxosteroid化合物 > 50g / l的在反应混合物中的存在浓度,b)由所述羟基类固醇脱氢酶NAD或NADP连续由通式R X - [R ý CHOH其中R X ,R ý独立地是氢,VER 表示支链或非支链C1-C8烷基和C 整体 = 3,或由一个C 4 -C 6环烷醇的氧化再生,和c)为通式R 的仲醇的氧化 X - [R ý CHOH或环烷醇的,则使用附加的氧化还原酶/醇脱氢酶。

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