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    • 3. 发明申请
    • IMPROVED 2-DEOXY-D-RIBOSE 5-PHOSPHATE ALDOLASES FOR, AND USE IN PRODUCTION OF 2, 4, 6-TRIDEOXYHESOSES AND 6-HALO- OR 6-CYANO-SUBSTITUTED DERIVATIVES THEREOF
    • 改进的2-脱氧-D-呋喃五磷酸酯,用于生产2,4,6-三磷酸和其中6-取代或6-取代的衍生物。
    • WO2005118794A2
    • 2005-12-15
    • PCT/EP2005/005989
    • 2005-06-02
    • DSM IP ASSETS B.V.JENNEWEIN, Stefan, MartinSCHUERMANN, MartinMOMMERS, Johannes, Helena, MichaelMINK, DanielWOLBERG, MichaelWUBBOLTS, Marcel, Gerhardus
    • JENNEWEIN, Stefan, MartinSCHUERMANN, MartinMOMMERS, Johannes, Helena, MichaelMINK, DanielWOLBERG, MichaelWUBBOLTS, Marcel, Gerhardus
    • C12N9/00
    • C12N9/88C12P19/02
    • The invention relates to isolated mutants of enzymes from the group of 2-deoxy-D-ribose 5-phosphate aldolase wild-type enzymes having a productivity factor (as determined by a specific test) which is at least 10% higher than the productivity factor for the corresponding wild-type enzyme from which it is a mutant. The mutants have at least one amino acid substitution at one or more of the positions corresponding to K13, T19, Y49, N80, D84, A93, E127, A128, K146, K160,1166, A174, M185, K196, F200, and S239 in Escherichia coli K12 (EC 4.1.2.4) wild-type enzyme sequence, and/or a deletion of at least one amino acid at the positions corresponding to S258 and Y259 therein, optionally combined with, specific, C-terminal extension and/or N terminal extension. The invention also relates to screening processes to find 2-deoxy-D-ribose 5-phosphate aldolase enzymes (either as such or as mutants) having a productivity factor (as determined by said specific test, which forms an essential part of the screening) which is at least 10% higher than the reference value. Moreover, the invention relates to mutant enzymes obtained by the screening process, and to nucleic acids encoding such mutants, and to vectors and host cells comprising, respectively, such nucleic acids or mutants. Finally the invention relates to the use of such (preferably mutant) enzymes, nucleic acids, vectors and host cells in the production of, for instance, 6-chloro-2,4,6-trideoxy­D-erythrohexapyranoside.
    • 本发明涉及分离的2-脱氧-D-核糖5-磷酸醛缩酶野生型酶的突变体,其具有比生产率高至少高10%的生产率因子(通过特异性测试确定) 对于其为突变体的相应野生型酶。 突变体在对应于K13,T19,Y49,N80,D84,A93,E127,A128,K146,K160,1166,A174,M185,K196,F200和S239的一个或多个位置具有至少一个氨基酸取代 在大肠杆菌K12(EC 4.1.2.4)野生型酶序列中,和/或在其对应于S258和Y259的位置上的至少一个氨基酸的缺失,任选地与特异性C末端延伸和/或 N终端扩展。 本发明还涉及筛选方法以找到具有生产率因子的2-脱氧-D-核糖-5-磷酸醛缩酶(或者作为突变体)(通过所述具体试验确定,其形成筛选的重要部分) 其比参考值高至少10%。 此外,本发明涉及通过筛选方法获得的突变酶,以及编码这种突变体的核酸,以及分别含有这些核酸或突变体的载体和宿主细胞。 最后,本发明涉及这种(优选突变的)酶,核酸,载体和宿主细胞在生产例如6-氯-2,4,6-三脱氧-D-赤藓糖苷中的用途。
    • 6. 发明申请
    • HYDROLASES, NUCLEIC ACIDS ENCODING THEM AND METHODS FOR MAKING AND USING THEM
    • 水解物,核酸编码方法及其使用方法
    • WO2006128590A1
    • 2006-12-07
    • PCT/EP2006/004736
    • 2006-05-18
    • DSM IP ASSETS B.V.MINK, DanielKIERKELS, Joannes, Gerardus, TheodorusDESANTIS, GraceFARWELL, RobertWHIPPLE, LawrenceBURK, Mark
    • MINK, DanielKIERKELS, Joannes, Gerardus, TheodorusDESANTIS, GraceFARWELL, RobertWHIPPLE, LawrenceBURK, Mark
    • C12P41/00
    • C12P7/62C12N9/16C12P17/06C12P41/005
    • The invention provides hydrolases, polynucleotides encoding them, and methods of making and using these polynucleotides and polypeptides. In one aspect, the invention is directed to polypeptides, e.g., enzymes, having a hydrolase activity, e.g., an esterase, acylase, lipase, phospholipase (e.g., phospholipase A, B, C and/or D activity, patatin activity, lipid acyl hydrolase (LAH) activity) or protease activity, including thermostable and thermotolerant hydrolase activity, and polynucleotides encoding these enzymes, and making and using these polynucleotides and polypeptides. The hydrolase activities of the polypeptides and peptides of the invention include esterase activity, lipase activity (hydrolysis of lipids), acidolysis reactions (to replace an esterified fatty acid with a free fatty acid), transesterification reactions (exchange of fatty acids between triglycerides), ester synthesis, ester interchange reactions, phospholipase activity and protease activity (hydrolysis of peptide bonds). The polypeptides of the invention can be used in a variety of pharmaceutical, agricultural and industrial contexts, including the manufacture of cosmetics and nutraceuticals. In another aspect, the polypeptides of the invention are used to synthesize enantiomerically pure chiral products.
    • 本发明提供水解酶,编码它们的多核苷酸,以及制备和使用这些多核苷酸和多肽的方法。 一方面,本发明涉及具有水解酶活性的多肽,例如酯酶,酰基转移酶,脂肪酶,磷脂酶(例如,磷脂酶A,B,C和/或D活性,patatin活性,脂质酰基 水解酶(LAH)活性)或蛋白酶活性,包括热稳定和耐热水解酶活性,以及​​编码这些酶的多核苷酸,以及制备和使用这些多核苷酸和多肽。 本发明的多肽和肽的水解酶活性包括酯酶活性,脂肪酶活性(脂质水解),酸解反应(用游离脂肪酸代替酯化脂肪酸),酯交换反应(甘油三酸酯之间的脂肪酸交换), 酯合成,酯交换反应,磷脂酶活性和蛋白酶活性(肽键的水解)。 本发明的多肽可用于各种药物,农业和工业环境中,包括制造化妆品和营养品。 另一方面,本发明的多肽用于合成对映体纯的手性产物。