... activityin SKOV3 cells.In our EMSA analyses, aside from the shifted band thatcontained USF1 and USF2, we observed other shiftedbands (X and Y) . As bands X and Y were only partiallyinhibited by ... of the SHP-1 phosphatase domain, and the intensity of the autoradiographed bands was measured bydensitometry. We analysed six human hematopoietic celllines (K562, Raji, HL60, BL-JC, CEM and ... protein tyrosinephosphorylation. Among the known protein tyrosinephosphatases, SHP-1 and SHP-2 are distinguished by the presence of two tandem src-homology 2 domains. Src-homology 2 domains...