Purity: > 95% by SDS - PAGE Format: Liquid. 20mM Tris-HCl buffer (pH8.0) containing 20% glycerol, 0.1M NaCl, 1mM DTT. DuSP13 (Dual specificity phosphatase 13) belongs to the protein-tyrosine phosphatase family. It cooperates with protein kinases to regulate cell proliferation and differentiation. DuSP13 is involved in the regulation of meiosis and/or differentiation of testicular germ cells during spermatogenesis. This protein exhibits intrinsic phosphatase activity towards both phospho-seryl/threonyl and -tyrosyl residues of myelin basic protein, with similar specific activities in vitro. Recombinant human DuSP13 protein, fused to His-tag at N-terminus, was expressed in E.coli and purified by using conventional chromatography techniques.