Purity > 90% as determined by SDS-PAGE. MW: 54.4kDa. Full Length of Mature Protein: 32-276aa. N-terminal GST-tagged. Mus musculus (Mouse). Tryptase is the major neutral protease present in mast cells and is secreted upon the coupled activation-degranulation response of this cell type. Has an immunoprotective role during bacterial infection. Required to efficiently combat K.pneumoniae infection.