Assays armed with catalytic signal amplification have arisen as superior systems for ultrasensitive detection of analytes. A conceptually new enzyme assay called cat-ELCCA (catalytic assay using enzyme-linked click-chemistry) is described, in which an enzyme-linked azide is utilized to arm the assay with catalytic fluorescence signal amplification. By using this assay technology, the first high-throughput screen for recently disclosed ghrelin O-acyltransferase (GOAT) was developed.
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Garner et al. (2010) studied this question.
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