Tryptase is the major neutral protease present in mast cells and is secreted upon the coupled activation-degranulation response of this cell type. May play a role in innate immunity. Isoform 2 cleaves large substrates, such as fibronectin, more efficiently than isoform 1, but seems less efficient toward small substrates (PubMed:18854315).
Hereditary alpha tryptasemia is caused by an increase in the copy number (usually between two and three copies) of the alpha allele. Affected individuals have elevated basal serum tryptase levels that are associated with cutaneous flushing and pruritus, dysautonomia, functional gastrointestinal symptoms, chronic pain, and connective tissue abnormalities. It is not clear if the associated multisystem complaints might be due to the coinheritance of a second functional genetic variant.
Belongs to the peptidase S1 family. Tryptase subfamily.
Isoform 1 and isoform 2 are expressed in lung, stomach, spleen, heart and skin; in these tissues, isoform 1 is predominant. Isoform 2 is expressed in aorta, spleen, and breast tumor, with highest levels in the endothelial cells of some blood vessels surrounding the aorta, as well as those surrounding the tumor and low levels, if any, in mast cells (at protein level).
Proteins
30515Da
We found 23 products in 3 categories
ab196772
ab288718
Anti-Mast Cell Tryptase antibody [EPR25628-58] - BSA and Azide free (Capture)
ab288719
Anti-Mast Cell Tryptase antibody [EPR25628-18] - BSA and Azide free (Detector)