This peptide sequence, EFpYAEVGRSPPDPAK, was selected by phage display analysis for optimal Shp-1 and Shp-2 phosphatase activities. Product Specification Sequence:H-Glu-Phe-pTyr-Ala-Glu-Val-Gly-Arg-Ser-Pro-Pro-Asp-Pro-Ala-Lys MW:1742.0 Long Term Storage:-20°C