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Multiplexed single-molecule enzyme activity analysis for counting disease-related proteins in biological samples. | LitMetric

AI Article Synopsis

Article Abstract

We established an ultrasensitive method for identifying multiple enzymes in biological samples by using a multiplexed microdevice-based single-molecule enzymatic assay. We used a paradigm in which we "count" the number of enzyme molecules by profiling their single enzyme activity characteristics toward multiple substrates. In this proof-of-concept study of the single enzyme activity-based protein profiling (SEAP), we were able to detect the activities of various phosphoric ester-hydrolyzing enzymes such as alkaline phosphatases, tyrosine phosphatases, and ectonucleotide pyrophosphatases in blood samples at the single-molecule level and in a subtype-discriminating manner, demonstrating its potential usefulness for the diagnosis of diseases based on ultrasensitive detection of enzymes.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7065886PMC
http://dx.doi.org/10.1126/sciadv.aay0888DOI Listing

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