Anti-Antithrombin III/SERPINC1 Antibody Picoband®

Serpin peptidase inhibitor, clade C (antithrombin), member 1, also known as Antithrombin III (AT3) is the most important inhibitor of thrombin OMBIN III and other coagulation proteinases. This gene is mapped to 1q25.1. The protein encoded by this gene is a plasma protease inhibitor and a member of the serpin superfamily. This protein inhibits thrombin as well as other activated serine proteases of the coagulation system, and it regulates the blood coagulation cascade. The protein includes two functional domains: the heparin binding-domain at the N-terminus of the mature protein, and the reactive site domain at the C-terminus. The inhibitory activity is enhanced by the presence of heparin. More than 120 mutations have been identified for this gene, many of which are known to cause antithrombin-III deficiency.

A synthetic peptide corresponding to a sequence at the N-terminus of human Antithrombin III, different from the related mouse and rat sequences by one amino acid.

Most important serine protease inhibitor in plasma that regulates the blood coagulation cascade. AT-III inhibits thrombin, matriptase-3/TMPRSS7, as well as factors IXa, Xa and XIa. Its inhibitory activity is greatly enhanced in the presence of heparin. .

1. Baud, O., Picard, V., Durand, P., Duchemin, J., Proulle, V., Albenc-Gelas, M., Devictor, D., Dreyfus, M. Intracerebral hemorrhage associated with a novel antithrombin gene mutation in a neonate. J. Pediat. 139: 741-743, 2001. 2. Fischer, A. M., Cornu, P., Sternberg, C., Meriane, F., Dautzenberg, M. D., Chafa, O., Beguin, S., Desnos, M. Antithrombin III Alger: a new homozygous AT III variant. Thromb. Haemost. 55: 218-221, 1986.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.