Characterization and kinetic analysis of protein tyrosine phosphatase-H2 from Microplitis demolitor bracovirus

►Polydnaviruses encode multiple protein tyrosine phosphatase (PTP) genes. ►PTP-H2 from MdBV was expressed and purified. ►Assays confirm that PTP-H2 is a functional tyrosine phosphatase. ►Host hemocytes infected by MdBV express PTP-H2.