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    • 4. 发明申请
    • POLYPEPTIDES HAVING PHYTASE ACTIVTY AND POLYNUCLEOTIDES ENCODING SAME
    • 具有植酸酶活性的多肽和编码该多肽的多核苷酸
    • WO2008092901A2
    • 2008-08-07
    • PCT/EP2008/051137
    • 2008-01-30
    • NOVOZYMES A/S
    • SJOEHOLM, CarstenLASSEN, Soeren FlenstedSKOV, Lars KobberoeeDE MARIA, Leonardo
    • A01H5/00C12N9/16C12N15/82C12N15/55
    • C12N9/16A23L33/18C12N15/8243C12P7/06Y02E50/17
    • The present invention relates to polypeptides having phytase activity. These polypeptides have an amino acid sequence which has at least 70% identity to either of three phytases derived from the bacterium Buttiauxella, and which comprises at least one of the following amino acids at the position indicated: 119N, 120L, and/or 121E. These phytases have an improved specific activity. Additional specific amino acid substitutions are also disclosed which characterize and distinguish additional phytases of the invention having improved properties such as temperature and/or pH stability, pH activity profile, temperature activity profile, substrate profile, improved performance in animal feed in vitro or in vivo . The invention also relates to isolated polynucleotides encodingthe polypeptides, nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods for producing and using the polypeptides.
    • 本发明涉及具有肌醇六磷酸酶活性的多肽。 这些多肽具有与源自细菌布丘氏菌的三种肌醇六磷酸酶中的任一种具有至少70%同一性的氨基酸序列,并且在所示位置包含至少一个以下氨基酸:119N,120L和/或121E。 这些植酸酶具有改善的比活性。 还公开了另外的特定氨基酸取代,其表征和区分具有改善的性质例如温度和/或pH稳定性,pH活性曲线,温度活性曲线,底物曲线,体外动物饲料中改善的性能的本发明的另外的肌醇六磷酸酶 in vivo 。 本发明还涉及编码所述多肽的分离的多核苷酸,包含所述多核苷酸的核酸构建体,载体和宿主细胞以及生产和使用所述多肽的方法。
    • 6. 发明申请
    • HAFNIA PHYTASE VARIANTS
    • HAFNIA植物变种
    • WO2010034835A2
    • 2010-04-01
    • PCT/EP2009/062539
    • 2009-09-28
    • NOVOZYMES A/S
    • LASSEN, Soeren FlenstedSKOV, Lars KobberoeeDE MARIA, LeonardoFRIIS, Esben PeterMATSUI, TomokoNOERGAARD, AllanVIND, Jesper
    • C12N9/16A23K1/165
    • C12N9/16A23K20/189A23K50/30A23K50/75Y02E50/17
    • The present invention relates to phytases having at least 76% identity to a phytase derived from Hafnia alvei and comprises at least one modification in the amino acid sequence thereof. These phytase variants have modified, preferably improved, properties, such as, reduced protease sensitiliby, preferably they exhibit improved properties in respect of thermal performance, such as heat-stability (temperature stability, thermostability), steam stability, pelleting stability and/or temperature profile; and/or protease stability, in particular pepsin stability, pH profile, specific activity, substrate specificity, performance in animal feed(such as an improved release and/or degradation of phytate), susceptibility to glycation, and/or glycosylation pattern. The invention also relates to DNA encoding these phytases, methods of thei r production, as well as the use thereof, e.g. in animal feed and animal feed additives.
    • 本发明涉及与来源于Hafnia alvei的肌醇六磷酸酶具有至少76%同一性且在氨基酸中包含至少一个修饰的肌醇六磷酸酶 其酸序列。 这些肌醇六磷酸酶变体具有改性,优选改进的性质,例如降低的蛋白酶敏感性,优选它们在热性能方面表现出改进的性能,例如热稳定性(温度稳定性,热稳定性),蒸汽稳定性,造粒稳定性和/或温度 简介; 和/或蛋白酶稳定性,特别是胃蛋白酶稳定性,pH曲线,比活性,底物特异性,动物饲料中的性能(如植酸盐的改善的释放和/或降解),对糖化的敏感性和/或糖基化模式。 本发明还涉及编码这些肌醇六磷酸酶的DNA,其生产方法及其用途,例如, 在动物饲料和动物饲料添加剂中。