The protein coding region of the catalytic domain of SHP-1 (amino acids 243-541) was cloned into an E. coli expression vector. The catalytic domain of SHP-1 was overexpressed as insoluble protein aggregates (inclusion bodies). The recombinant SHP-1 protein was purified by FPLC gel-filtration chromatography, after refolding of the isolated inclusion bodies in a redox buffer. Additional amino acid(Met) is attached at N-terminus. Alternative Names: Protein tyrosine phosphatase non-receptor type 6 isoform 1 protein, PTPN6 protein, SHP1, SHP 1 protein, SHP-1, Tyrosine-protein phosphatase non-receptor type 6 protein, Hematopoietic cell phosphatase protein, Hematopoietic cell protein tyrosine phosphatase protein, Protein tyrosine phosphatase SHP 1 protein, SHP-1 protein, HCP protein, HCPH protein, Protein-tyrosine phosphatase 1C protein, SHP 1, SHPTP 1 protein, HCP protein, SHP 1 protein, SH PTP1 protein, 70 kda SHP1L protein protein, SHP 1L protein, SH PTP 1 protein, SH-PTP1 protein, PTP1C protein, Protein-tyrosine phosphatase SHP-1 protein, PTP 1C protein, HPTP1C protein, Protein tyrosine phosphatase 1C protein, SHP1 protein, HPTP 1C protein, SHP-1L EC 3.1.3.48 protein, PTPN6 protein, Hematopoietic cell protein-tyrosine phosphatase protein, Protein tyrosine phosphatase SHP1 protein, Tyrosine protein phosphatase non receptor type 6, SHPTP1 protein, SHP1L protein, PTPN 6 protein, PTP-1C protein, EC 3.1.3.48 protein