The invention belongs to the technical field of
protein detection, and provides an
amyloid transthyretin detection kit and application thereof, the kit comprises the following reagents: normal recombinant TTR
protein, a TTR-PFF standard substance, a
fluorescent tracer and a
buffer solution system; the TTR-PFF standard substance comprises a TTR substrate and an RT-
QuIC reaction
mixed solution, and the pH value of the RT-
QuIC reaction
mixed solution is 4.0 to 4.5; the
buffer solution system comprises a PBS / N2
sample dilution buffer solution and a
phosphate buffer solution. According to the detection kit, TTR-PFF is adopted as a reference, a subject sample is combined with normal recombinant human
transthyretin, a
fluorescent tracer is added, ATTR in a body can convert normal recombinant
monomer TTR
protein into
amyloid fiber, and existence and activity of the ATTR are detected by detecting a
fluorescence value of the ATTR. The detection has ultrahigh sensitivity and specificity, minimally invasive or non-invasive sampling is operated, the operation is simple and convenient, a key technical foundation is laid for developing a simple, convenient, efficient and clinical ATTR
amyloidosis detection platform, especially an
early detection platform, and the kit has a wide market application prospect.