Patent ID: 7176285

Claim:
An isolated protein histidine phosphatase interacting partner of 120 kd (PHPIP-120) polypeptide selected from the group consisting of: (a) a polypeptide encoded by a polynucleotide comprising the sequence of SEQ ID NO:1; (b) a polypeptide comprising a polypeptide sequence having at least 95% identity along its entire length to the polypeptide sequence of SEQ ID NO:2; (c) a polypeptide having at least 95% identity along its entire length to the polypeptide sequence of SEQ ID NO:2; and (d) the polypeptide sequence of SEQ ID NO:2, wherein each of the said PHPIP-120 polypeptides of (a) to (d) has the ability to bind specifically to the protein histidine phosphatase 1 (PHP1) having the amino acid sequence shown in SEQ ID NO:8.