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US 2013/0280741 A1Published application
Method and system of detecting dioxin-like compounds
OwnerHsinyu Leeinventor
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Abstract
The invention relates to a method or a cell free system of detecting dioxin-like compounds in a test sample using a whole cell lysate derived from a cell transfected to express a fusion protein comprising an AHR fused to a reporter peptide. The method in combination with bioluminescence resonance energy transfer (BRET) technique is also provided so as to improve the sensitivity.
Claims20
A method of detecting a dioxin-like compound in a test sample comprising:
- providing a whole cell lysate derived from a cell transfected to express one or more fusion proteins fused to a reporter peptide, one of which comprises an aryl hydrocarbon receptor (AHR), and wherein the whole cell lysate comprises the fusion protein in a dissociated complex;
- contacting the test sample with the whole cell lysate for a period of time sufficient for the fusion protein in a dissociated complex to degrade upon the presence of the dioxin-like compound;
- and
- detecting a detectable signal generated by the reporter peptide as indicative of an amount of the fusion protein and comparing to a reference signal generated with a known concentration of a dioxin-like compound, thereby determining the presence or amount of the dioxin-like compound in the test sample.
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Dependencies are inferred from the claim text.