Serine Protease Inhibitors

Overview

Serine protease inhibitors are molecules that block the activity of serine proteases, a major class of enzymes that cleave proteins using a reactive serine residue in their active site. They are central to controlling tightly regulated proteolytic processes, most notably blood coagulation, where serine proteases drive the clotting cascade and their inhibitors prevent excessive or unwanted clot formation. This balance matters because too little inhibition can promote dangerous thrombosis, while disruption of the proteases or their regulators can cause bleeding disorders. Naturally occurring inhibitors include antithrombin, which restrains multiple coagulation proteases, and heparin cofactor II, among other regulatory proteins; many belong to the serpin superfamily, which inhibits its targets through a distinctive conformational mechanism. Beyond coagulation, serine protease inhibitors regulate inflammation, fibrinolysis, and immune processes, and they are important in understanding inherited conditions caused by mutations in coagulation factors or their regulators. They are also of pharmacological interest as anticoagulant and therapeutic agents. Key aspects include their specificity, mechanism of action, and physiological roles in hemostasis. Related open-access research on coagulation proteases and their regulatory inhibitors is available through this collection.

Research published in this journal

1 peer-reviewed article, ranked by relevance. Each links to its DOI.

This page summarises published research for orientation; it is not medical or professional advice.

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