Human Factor XIII

Human Factor XIII is a tetramer composed of two pairs of chains held together by noncovalent bonds. After activation of the zymogen via Thrombin to its active enzyme form, Factor XIIIa is responsible for catalyzing the formation of covalent bridges between fibrin units to increase the elasticity of the clot network. The resulting cross-linked fibrin is very insoluble and resistant to lysis. Innovative Research also offers the zymogen form of Human Factor XIII(α2β2).

Buffer composition =50 mM Tris-HCl/0.1 M NaCl/1 mM EDTA/10u/mL Trasylol/20% glycerol/pH 7.5

*Extinction Coefficient (1%)=13.8

Molecular Weight = 320,000 daltons