Name :
Human Coagulation factor XI / FXI Protein, His Tag (active enzyme)
Background :
Coagulation factor XI is also known as F11, PTA and FXI. Factor XI triggers the middle phase of the intrinsic pathway of blood coagulation by activating factor IX. Factor XI is synthesized in the liver and circulates in the plasma as a disulfide bond-linked dimer complexed with high molecular weight kininogen. Selective cleavage of Arg-|-Ala and Arg-|-Val bonds in factor IX to form factor IXa. Factor XI is converted into XIa via either the contact phase of blood coagulation or thrombin-mediated activation on the platelet surface. The resulting XIa converts factor IX into IXa, which subsequently activates factor X into Xa.
Biological Activity :
Species :
Source :
Human Coagulation factor XI, His Tag (FXI-H52H5) is expressed from human 293 cells (HEK293). It contains AA Glu 19 – Val 625 (Accession # P03951-1 ).
Tag :
Synonyms :
（Synonym）Coagulation factor XI,FXI,PTA,F11
Purity :
（Purity）>90% as determined by SDS-PAGE.
Storage and Stability :
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Endotoxin Level :
（Endotoxin）Less than 1.0 EU per μg by the LAL method.
Formulation :
Lyophilized from 0.22 μm filtered solution in 20 mM HEPES, 150 mM NaCl, pH7.5 with trehalose as protectant.
Protein Structure :
This protein carries a polyhistidine tag at the C-terminus.
Refactoring Approach :
Please see Certificate of Analysis for specific instructions.
Protein Labeling :
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