摘要:
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 encoding the polypeptides, nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods for producing and using the polypeptides.
摘要:
The present invention relates to isolated polypeptides having phytase activity and isolated polynucleotides encoding the polypeptides. The polypeptides are related to a phytase derived from Hafnia alvei, the amino acid sequence of which is shown in the appended sequence listing as SEQ ID NO: 10. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods for producing and using the polypeptides, in particular within animal feed.
摘要翻译:本发明涉及具有植酸酶活性的分离的多肽和编码多肽的分离的多核苷酸。 多肽与源自Hafnia alvei的植酸酶相关,其氨基酸序列在附加的序列表中显示为SEQ ID NO:10。本发明还涉及核酸构建体,载体和宿主细胞,其包含多核苷酸为 以及用于产生和使用多肽的方法,特别是在动物饲料中。
摘要:
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 encoding the polypeptides, nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods for producing and using the polypeptides.
摘要:
The present invention relates to isolated polypeptides having phytase activity and isolated polynucleotides encoding the polypeptides. The polypeptides are related to a phytase derived from Hafnia alvei, the amino acid sequence of which is shown in the appended sequence listing as SEQ ID NO: 10. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods for producing and using the polypeptides, in particular within animal feed.
摘要翻译:本发明涉及具有植酸酶活性的分离的多肽和编码多肽的分离的多核苷酸。 多肽与源自Hafnia alvei的植酸酶相关,其氨基酸序列在附加的序列表中显示为SEQ ID NO:10。本发明还涉及核酸构建体,载体和宿主细胞,其包含多核苷酸为 以及用于产生和使用多肽的方法,特别是在动物饲料中。
摘要:
The present invention relates to isolated polypeptides having phytase activity and isolated polynucleotides encoding the polypeptides. The polypeptides are related to a phytase derived from Hafnia alvei, the amino acid sequence of which is shown in the appended sequence listing as SEQ ID NO: 10. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods for producing and using the polypeptides, in particular within animal feed.
摘要翻译:本发明涉及具有植酸酶活性的分离的多肽和编码多肽的分离的多核苷酸。 多肽与源自Hafnia alvei的植酸酶相关,其氨基酸序列在附加的序列表中显示为SEQ ID NO:10。本发明还涉及核酸构建体,载体和宿主细胞,其包含多核苷酸为 以及用于产生和使用多肽的方法,特别是在动物饲料中。
摘要:
The present invention relates to isolated polypeptides having phytase activity and isolated polynucleotides encoding the polypeptides. The polypeptides are related to a phytase derived from Hafnia alvei, the amino acid sequence of which is shown in the appended sequence listing as SEQ ID NO: 10. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods for producing and using the polypeptides, in particular within animal feed.
摘要翻译:本发明涉及具有植酸酶活性的分离的多肽和编码多肽的分离的多核苷酸。 多肽与源自Hafnia alvei的植酸酶相关,其氨基酸序列在附加的序列表中显示为SEQ ID NO:10。本发明还涉及核酸构建体,载体和宿主细胞,其包含多核苷酸为 以及用于产生和使用多肽的方法,特别是在动物饲料中。
摘要:
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 sensibility, 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 their production, as well as the use thereof, e.g., in animal feed and animal feed additives.
摘要:
The present invention relates to isolated polypeptides having organophosphorous hydrolase activity and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.
摘要:
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 sensibility, 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 their production, as well as the use thereof, e.g., in animal feed and animal feed additives.
摘要:
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 sensibility, 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 their production, as well as the use thereof, e.g., in animal feed and animal feed additives.