SHP-1

Recognizes a protein of ~50kDa, which is identified as the SH2-containing protein-tyrosine phosphatase 1 (SHP-1). This antibody is highly specific to SHP-1 and shows no cross-reaction with other protein-tyrosine phosphatase. SHP-1 is known to play a crucial role in the regulation of hematopoiesis and it regulates the transcriptional activity stimulated by the erythropoietin (EPO)-induced JAK/STAT and MAPK pathways and is involved in the signaling machinery responsible for erythroid differentiation and suppression of apoptosis. Furthermore, the observation that SHP-1 associates with RAFTK/Pyk2/CAK activated by beta-chemokine receptor (CCR5) and SHP-1 also associates with the adaptor protein Grb2 and the Src-related kinase Syk indicates the role of SHP-1 in modulating cell migration, proliferation, and immune functions.