{HEAD ~ These polypeptides} have {TAIL ~ 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 121E. These phytases have an improved specific activity 
{ HEAD ~ These polypeptides } have { TAIL ~ 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 121E. These phytases have an improved specific activity
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH OTH OTH OTH OTH OTH OTH