Immunogen sequence: CPGNWLWASM TFMARFSRSS SRSPVRTRGT LEEMPTVQHP FLNVFELERL LYTGKTACNH ADEVWPGLYL GDQDMANNRR ELRRLGITHV L. This gene encodes a member of the tyrosine phosphatase family of proteins and exhibits dual specificity by dephosphorylating tyrosin