Anti-Alpha 2 Antiplasmin/SERPINF2 Antibody Picoband® Fluoro488 Conjugated

Alpha 2-antiplasmin (or α2-antiplasmin or plasmin inhibitor) is a serine protease inhibitor (serpin) responsible for inactivating plasmin. Plasmin is an important enzyme that participates in fibrinolysis and degradation of various other proteins. This protein is encoded by the SERPINF2 gene. This gene encodes a member of the serpin family of serine protease inhibitors. The protein is a major inhibitor of plasmin, which degrades fibrin and various other proteins. Consequently, the proper function of this gene has a major role in regulating the blood clotting pathway. Mutations in this gene result in alpha-2-plasmin inhibitor deficiency, which is characterized by severe hemorrhagic diathesis. Multiple transcript variants encoding different isoforms have been found for this gene.

Low affinity immunoglobulin epsilon Fc receptor; BLAST-2; C-type lectin domain family 4 member J; Fc-epsilon-RII; Immunoglobulin E-binding factor; Lymphocyte IgE receptor; CD23; Low affinity immunoglobulin epsilon Fc receptor membrane-bound form; Low affinity immunoglobulin epsilon Fc receptor soluble form; FCER2; CD23A; CLEC4J; FCE2; IGEBF

Highly expressed on high endothelial venules (HEV) and lamina propia venules found in the small intestine, and to a lesser extent in the colon and spleen. Very low levels of expression found in pancreas and brain. Not expressed in the thymus, prostate, ovaries, testis, heart, placenta, lung, liver, skeletal muscle, kidney or peripheral blood leukocytes.

Low-affinity receptor for immunoglobulin E (IgE) and CR2/CD21. Has essential roles in the regulation of IgE production and in the differentiation of B-cells (it is a B-cell-specific antigen) .

1. Bangert, K., Johnsen, A. H., Christensen, U., Thorsen, S. Different N-terminal forms of alpha-2-plasmin-inhibitor in human plasma. Biochem. J. 291: 623-625, 1993. 2. Favier, R., Aoki, N., de Moerloose, P. Congenital alpha-2-plasmin inhibitor deficiencies: a review. Brit. J. Haemat. 114: 4-10, 2001. 3. Hirosawa, S., Nakamura, Y., Miura, O., Sumi, Y., Aoki, N. Organization of the human alpha-2-plasmin inhibitor gene. Proc. Nat. Acad. Sci. 85: 6836-6840, 1988. Note: Erratum: Proc. Nat. Acad. Sci. 86: 1612-1613, 1989.