Ac-ELEFpYMDYE-NH2
Protein Tyrosine Phosphatase 1B Substrate II Lyophilized. Supplied as a trifluoroacetate salt. HYGROSCOPIC. PACKAGED UNDER INERT GAS. An excellent substrate for Protein Tyrosine Phosphatase 1B (Cat. No. 539735) (kcat/Km = 2.2 X 107M-1s-1). Substrate hydrolysis is measured by the increase in tyrosine fluorescence, which can be continuously monitored at 305 nm following excitation at 280 nm. Purity: ≥98% by HPLC. Ac-Glu-Leu-Glu-Phe-Tyr(PO3H2)-Met-Asp-Tyr-Glu-NH2 Ref.: Vetter, S.W., et al. 2000. J. Biol. Chem. 275, 2265. | 
