Human PREP Recombinant Protein (N-His) is a recombinant protein expressed in E. coli, spanning Ser77-Glu424, with an N-terminal His tag. Predicted molecular weight: 42.31 kDa. Purity: >90% as determined by SDS-PAGE. Supplied lyophilized from a solution in PBS pH 7.4, 1 mM EDTA, 4% Trehalose, 1% Mannitol. Applications: ELISA, immunogen, SDS-PAGE and Western blot. Prolyl endopeptidase is a ~80 kDa protein. Cleaves peptide bonds on the C-terminal side of prolyl residues within peptides that are up to approximately 30 amino acids long. For research use only.