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- Table of Contents

Facts about Tryptase alpha/beta-1.
Isoform 2 cleaves large substrates, such as fibronectin, more efficiently than isoform 1, but seems less efficient toward small substrates (PubMed:18854315). .
| Human | |
|---|---|
| Gene Name: | TPSAB1 |
| Uniprot: | Q15661 |
| Entrez: | 7177 |

| Belongs to: |
|---|
| peptidase S1 family |

alpha-Tryptase; TPS1; TPS2; TPSAB1; TPSB1; Tryptase 1; Tryptase alpha; tryptase alpha/beta 1
Mass (kDA):
30.515 kDA

| Human | |
|---|---|
| Location: | 16p13.3 |
| Sequence: | 16; NC_000016.10 (1240705..1242554) |
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).
Secreted. Released from the secretory granules upon mast cell activation.





PMID: 2677049 by Miller J.S., et al. Cloning and characterization of complementary DNA for human tryptase.
PMID: 2187193 by Vanderslice P., et al. Human mast cell tryptase: multiple cDNAs and genes reveal a multigene serine protease family.
*More publications can be found for each product on its corresponding product page