- Tryptase
-
Tryptase Identifiers EC number 3.4.21.59 CAS number 97501-93-4 Databases IntEnz IntEnz view BRENDA BRENDA entry ExPASy NiceZyme view KEGG KEGG entry MetaCyc metabolic pathway PRIAM profile PDB structures RCSB PDB PDBe PDBsum Gene Ontology AmiGO / EGO Search PMC articles PubMed articles Tryptase is the most abundant secretory granule-derived serine proteinase contained in mast cells that has been used as a marker for mast cell activation.[1][2] It is involved with allergenic response and is suspected to act as a mitogen for fibroblast lines. Elevated levels of serum tryptase occur in both anaphylactic and anaphylactoid reactions, but a negative test does not exclude anaphylaxis.
Genes
Human genes that encode proteins with tryptase activity include:
Gene Enzyme TPSAB1 Tryptase alpha-1 TPSAB1 Tryptase beta-1 TPSB2 Tryptase beta-2 TPSD1 Tryptase delta TPSG1 Tryptase gamma PRSS22 Tryptase epsilon References
- ^ Tanaka T, McRae BJ, Cho K, Cook R, Fraki JE, Johnson DA, Powers JC (November 1983). "Mammalian tissue trypsin-like enzymes. Comparative reactivities of human skin tryptase, human lung tryptase, and bovine trypsin with peptide 4-nitroanilide and thioester substrates". J. Biol. Chem. 258 (22): 13552–7. PMID 6358206.
- ^ Vanderslice P, Ballinger SM, Tam EK, Goldstein SM, Craik CS, Caughey GH (May 1990). "Human mast cell tryptase: multiple cDNAs and genes reveal a multigene serine protease family". Proc. Natl. Acad. Sci. U.S.A. 87 (10): 3811–5. doi:10.1073/pnas.87.10.3811. PMC 53993. PMID 2187193. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=53993.
External links
Digestive enzymes Coagulation factors: Thrombin · Factor VIIa · Factor IXa · Factor Xa · Factor XIa · Factor XIIa · Kallikrein (PSA, KLK1, KLK2, KLK3, KLK4, KLK5, KLK6, KLK7, KLK8, KLK9, KLK10, KLK11, KLK12, KLK13, KLK14, KLK15)
fibrinolysis: Plasmin · Plasminogen activator (Tissue plasminogen activator · Urinary plasminogen activator)Complement system Other immune system Venombin Other Acrosin · Prolyl endopeptidase · Pronase · Proprotein convertases (1, 2) · Reelin · Subtilisin/Furin · Streptokinase · S1P · Cathepsin (A, G)This hydrolase article is a stub. You can help Wikipedia by expanding it.