Serpin

Serine protease inhibitors (Serpins)

Serine protease inhibitors (serpins) are a broadly distributed family of protease inhibitors that use a conformational change to inhibit target enzymes. Serpins can be divided into two categories. Clade A serpins include inflammatory response molecules such as SERPINA1 (antitrypsin), SERPINA3 (antichymotrypsin), SERPINA6 (corticosteroid-binding globulin), and SERPINA7 (thyroxine-binding globulin). Clade B includes inhibitory molecules such as SERPINB6(PI6), SERPINB9 (PI9), SERPINB3, (squamous cell carcinoma antigen-1), and SERPINB5 (maspin). Serines control crucial physiological processes, such as inflammation, coagulation, thrombosis and thrombolysis, and immune responses[1].

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