Human Factor XII total antigen assay ELISA kit

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Human Factor XII total antigen assay ELISA kit

Factor XII (aka Hageman Factor) is a single-chain, 615 amino acid glycoprotein zymogen. Factor XII is activated by kallikrein. Factor XIIa converts prekallikrein to kallikrein during the intrinsic pathway of the coagulation cascade. Although Factor XII is not thought to play an essential role in normal hemostasis, lack of Factor XII in a mouse model resulted in a severe defect in thrombus formation. The sensitive quantitative measurement of total human Factor XII antigen in plasma samples is easily performed with this 96 well strip format ELISA kit. Factor XII and XIIa will be detected by the assay. The concentration of Factor XII in normal human plasma ranges from 15-47 ug/ml. The assay measures total human Factor XII in the 0.1-100 ng/ml range. Samples giving human Factor XII levels above 100 ng/ml should be diluted in blocking buffer before use. A 1:1,000 to 1:5,000 dilution for plasma is suggested for best results. Human Factor XII will bind to the capture antibody coated on the microtiter plate. After appropriate washing steps, anti-human Factor XII primary antibody binds to the captured protein. Excess primary antibody is washed away and bound antibody is reacted with the secondary antibody conjugated to HRP. Following an additional washing step, TMB substrate is used for color development at 450nm. Color development is proportional to the concentration of Factor XII in the samples. A standard calibration curve is prepared using dilutions of purified Factor XII and is measured along with the test samples. All reagents and standards are provided in these ELISA kits.

Gene ID: 2161
Swiss-Prot/UniProt ID: P00748

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