These polypeptides have {TAIL ~ an amino acid sequence} which has {HEAD ~ 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 121E. These phytases have an improved specific activity 
These polypeptides have { TAIL ~ an amino acid sequence } which has { HEAD ~ 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 121E. These phytases have an improved specific activity
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH