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A high-throughput integrated microfluidics method enables tyrosine autophosphorylation discovery.


ABSTRACT: Autophosphorylation of receptor and non-receptor tyrosine kinases is a common molecular switch with broad implications for pathogeneses and therapy of cancer and other human diseases. Technologies for large-scale discovery and analysis of autophosphorylation are limited by the inherent difficulty to distinguish between phosphorylation and autophosphorylation in vivo and by the complexity associated with functional assays of receptors kinases in vitro. Here, we report a method for the direct detection and analysis of tyrosine autophosphorylation using integrated microfluidics and freshly synthesized protein arrays. We demonstrate the efficacy of our platform in detecting autophosphorylation activity of soluble and transmembrane tyrosine kinases, and the dependency of in vitro autophosphorylation assays on membranes. Our method, Integrated Microfluidics for Autophosphorylation Discovery (IMAD), is high-throughput, requires low reaction volumes and can be applied in basic and translational research settings. To our knowledge, it is the first demonstration of posttranslational modification analysis of membrane protein arrays.

SUBMITTER: Nevenzal H 

PROVIDER: S-EPMC6353932 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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A high-throughput integrated microfluidics method enables tyrosine autophosphorylation discovery.

Nevenzal Hadas H   Noach-Hirsh Meirav M   Skornik-Bustan Or O   Brio Lev L   Barbiro-Michaely Efrat E   Glick Yair Y   Avrahami Dorit D   Lahmi Roxane R   Tzur Amit A   Gerber Doron D  

Communications biology 20190130


Autophosphorylation of receptor and non-receptor tyrosine kinases is a common molecular switch with broad implications for pathogeneses and therapy of cancer and other human diseases. Technologies for large-scale discovery and analysis of autophosphorylation are limited by the inherent difficulty to distinguish between phosphorylation and autophosphorylation in vivo and by the complexity associated with functional assays of receptors kinases in vitro. Here, we report a method for the direct dete  ...[more]

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