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Large‐scale integrated microfluidics for protein modification discovery in quasi‐cellular environments

We introduce a modular microfluidic platform for monitoring multiple post‐translational modifications of freshly synthesized protein arrays. The system's potency, specificity and flexibility is demonstrated for tyrosine phosphorylation and ubiquitination in quasi‐cellular environments recapitulating human cell stoichiometry. Unlimited by design and protein composition, and relying on minute amounts of biological material and cost‐effective technology, this unique approach is applicable for a broad range of basic, biomedical and biomarker research.