Anti-Fibrinogen gamma chain/FGG Antibody Picoband®

Fibrinogen gamma chain, also known as FGG, is a human gene found on Chromosome 4. The protein encoded by this gene is the gamma component of fibrinogen, a blood-borne glycoprotein comprised of three pairs of nonidentical polypeptide chains. Following vascular injury, fibrinogen is cleaved by thrombin to form fibrin which is the most abundant component of blood clots. In addition, various cleavage products of fibrinogen and fibrin regulate cell adhesion and spreading, display vasoconstrictor and chemotactic activities, and are mitogens for several cell types. Mutations in this gene lead to several disorders, including dysfibrinogenemia, hypofibrinogenemia and thrombophilia. Alternative splicing results in transcript variants encoding different isoforms.

A synthetic peptide corresponding to a sequence at the N-terminus of human FGG, different from the related mouse sequence by two amino acids, and from the related rat sequence by five amino acids.

Together with fibrinogen alpha (FGA) and fibrinogen beta (FGB), polymerizes to form an insoluble fibrin matrix. Has a major function in hemostasis as one of the primary components of blood clots. In addition, functions during the early stages of wound repair to stabilize the lesion and guide cell migration during re- epithelialization. Was originally thought to be essential for platelet aggregation, based on in vitro studies using anticoagulated blood. However, subsequent studies have shown that it is not absolutely required for thrombus formation in vivo. Enhances expression of SELP in activated platelets via an ITGB3- dependent pathway. Maternal fibrinogen is essential for successful pregnancy. Fibrin deposition is also associated with infection, where it protects against IFNG-mediated hemorrhage. May also facilitate the antibacterial immune response via both innate and T-cell mediated pathways. .

1. Budzynski, A. Z., Marder, V. J., Menache, D., Guillin, M.-C. Defect in the gamma polypeptide chain of a congenital abnormal fibrinogen (Paris I) . Nature 252: 66-68, 1974. 2. Ebert, R. F., Bell, W. R. Fibrinogen Baltimore III: congenital dysfibrinogenemia with a shortened gamma-subunit. Thromb. Res. 51: 251-258, 1988. 3. Fornace, A. J., Jr., Cummings, D. E., Comeau, C. M., Kant, J. A., Crabtree, G. R. Structure of the human gamma-fibrinogen gene: alternate mRNA splicing near the 3-prime end of the gene produces gamma-A and gamma-B forms of gamma-fibrinogen. J. Biol. Chem. 259: 12826-12830, 1984.

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.