Antithrombin III

**Definition:** A plasma alpha 2 glycoprotein that accounts for the major antithrombin activity of normal plasma and also inhibits several other enzymes. It is a member of the serpin superfamily.

**Tree numbers:** - D12.644.861.060.500 - D12.776.124.790.106.125 - D12.776.377.715.085.125 - D12.776.872.060.500 - D23.113.025

**Synonyms:** - Serpin C1 - Heparin Cofactor I - Heparin Co-Factor I