Purity >90% as determined by SDS-PAGE. Human PTPRD, His Tag (PTD-H52H9) is expressed from human 293 cells (HEK293). It contains AA Glu 21 - Glu 1265 (Accession # P23468-1). This protein carries a polyhistidine tag at the C-terminus. The protein has a calculated MW of 140 kDa. The protein migrates as 19 kDa and 120-130 kDa under reducing (R) condition (SDS-PAGE).