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Coagulation Factor XI / FXI / F11 Antibody, Mouse MAb

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Human F11/FXI Antibody Product Information
Immunogen:Recombinant Human FXI protein (Catalog#10302-H08H)
Clone ID:2B7E12F8
Ig Type:Mouse IgG1
Formulation:0.2 μm filtered solution in PBS with 5% trehalose
Preparation:This antibody was produced from a hybridoma resulting from the fusion of a mouse myeloma with B cells obtained from a mouse immunized with purified, recombinant Human Factor XI (rh Factor XI; Catalog#10302-H08H; NP_000119.1; Met 1-Val 625). The IgG fraction of the cell culture supernatant was purified by Protein A affinity chromatography.
Human F11/FXI Antibody Usage Guide
Specificity:Human FXI / F11 / Factor XI
No cross-reactivity in WB and ELISA with
Human uPA / PLAU
Human Kallikrein-11 / KLK-11
Human Kallikrein-1 / KLK-1
Human HGFA / HGF Activator
Human cell lysate (293 cell line)

ELISA: 0.5-1 μg/mL

This antibody can be used at 0.5-1 μg/mL with the appropriate secondary reagents to detect Human Factor XI. The detection limit for Human Factor XI is 0.039 ng/well.

Storage:This antibody can be stored at 2℃-8℃ for one month without detectable loss of activity. Antibody products are stable for twelve months from date of receipt when stored at -20℃ to -70℃. Preservative-Free.
Sodium azide is recommended to avoid contamination (final concentration 0.05%-0.1%). It is toxic to cells and should be disposed of properly. Avoid repeated freeze-thaw cycles.
Other F11/FXI Antibody Products
Coagulation Factor XI/F11 Background

Factor XI (plasma thromboplastin antecedent) is a plasma glycoprotein, and a zymogen acting as a serine protease which participates in blood coagulation as a catalyst in the conversion of factor IX to factor IXa in the presence of calcium ions. It is an unusual dimeric protease, with structural features that distinguish it from vitamin K-dependent coagulation proteases. The factor XI is synthesized in the liver as a single polypeptide chain with a molecular weight estimated between 125 ~160 kDa and then is processed into a disulfide-bond linked homodimer. FXI is a homodimer, with each subunit containing four apple domains and a protease domain. The apple domains form a disk structure with binding sites for platelets, high molecular weight kininogen, and the substrate factor IX (FIX). FXI is converted to the active protease FXIa by cleavage of the Arg369-Ile370 bond on each subunit. After the activation reaction, Factor XIa is composed of two heavy and two light chains held together by three disulfide bonds. The heavy chains are derived from the amino termini of the zymogen and responsible for the binding of factor XI to high molecular weight kininogen and for the activation of factor IX, while the light chain contains the catalytic portion of the enzyme and is homologous to the trypsin family of serine proteases. FXI deficiency is a disorder characterized by a mild or no bleeding tendency. Severe FXI deficiency is an injury-related bleeding disorder common in Ashkenazi Jews and rare worldwide.

Human Coagulation Factor XI/F11 References
  • Gailani D, et al. (2009) Structural and functional features of factor XI. J Thromb Haemost. 7 Suppl 1: 75-8.
  • Duga S, et al. (2009) Factor XI Deficiency. Semin Thromb Hemost. 35(4): 416-25.
  • Emsley J, et al. (2010) Structure and function of factor XI. Blood. 115(13): 2569-77.
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