Tryptase
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Tryptase is the most abundant secretory granule-derived serine proteinase contained in mast cells that has recently been used as a marker for mast cell activation. 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.
[edit] Genes
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Trypsin - Chymotrypsin - Elastase (Neutrophil, Pancreatic) - Enteropeptidase
Acrosin - Pronase - Proprotein convertases (1, 2) - Subtilisin/Furin
Immune (Chymase, Granzyme, Tryptase, Proteinase 3/Myeloblastin) - Venombin (Ancrod, Batroxobin)
Complement system: Factor B - Factor D - Factor I - MASP (MASP1, MASP2)
Coagulation factors: Thrombin - Factor VIIa - Factor IXa - Factor Xa - Factor XIa - Factor XIIa - Kallikrein (PSA) - Fibrinolysis: Plasmin - Tissue plasminogen activator - Urinary plasminogen activator
