The KeyTec® TR-FRET Human Fc detection kit is designed for quantitative measurement of human IgG or human Fc-tagged protein in supernatant. It is based on competitive immunoassay model and utilizes TR-FRET technology, known for its ease of use, homogeneity (no wash), low background, wide range, robustness.
The screening principle is based on TR-FRET technology. The mAb anti-hFc antibody is labeled with KeyTec® TR-FRET Solar Eu and Human IgG is labeled with KeyTec® TR-FRET LA, when mAb anti-hFc-Solar Eu binds to Human IgG-LA, the donor molecule is brought into proximity with the acceptor molecule. Excitation of the donor will result in the generation of the TR-FRET signal at 665 nm. Native human IgG or human Fc-tagged protein competes with the Human IgG-LA for binding to anti-hFc antibodies. The specific signal is inversely proportional to the concentration of human IgG or human Fc-tagged protein in the standard or sample.