| Tissue Specificity | 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). |
| Function | 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. |
| Protein Name | Tryptase Alpha/Beta-1Tryptase-1Tryptase ITryptase Alpha-1 |
| Database Links | Reactome: R-HSA-1592389 |
| Cellular Localisation | SecretedReleased From The Secretory Granules Upon Mast Cell Activation |
| Alternative Protein Names | Tryptase Alpha/Beta-1 proteinTryptase-1 proteinTryptase I proteinTryptase Alpha-1 proteinTPSAB1 proteinTPS1 proteinTPS2 proteinTPSB1 protein |
Information sourced from Uniprot.org