De Maria, Leonardo,Lassen, Soeren Flensted,Skov, Lars Kobberoee,Sjoeholm, Carsten
申请号：
AU2008209720
公开号：
AU2008209720C1
申请日:
2008.01.30
申请国别(地区):
AU
年份:
2016
代理人:
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
