Human TPSD1 Recombinant Protein (N-His) is a recombinant protein expressed in E. coli, spanning Gln52-Thr242, with an N-terminal His tag. 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. Tryptase delta is a ~26 kDa protein. Tryptase is the major neutral protease present in mast cells and is secreted upon the coupled activation-degranulation response of this cell type. For research use only.