Fibrinopeptide A

**Definition:** Two small peptide chains removed from the N-terminal segment of the alpha chains of fibrinogen by the action of thrombin during the blood coagulation process. Each peptide chain contains 18 amino acid residues. In vivo, fibrinopeptide A is used as a marker to determine the rate of conversion of fibrinogen to fibrin by thrombin.

**Tree numbers:** - D12.644.200 - D12.776.124.125.515 - D12.776.124.270.310 - D12.776.811.300.310 - D23.101.340 - D23.119.500

**Synonyms:** - Fibrinopeptides A