ArticleChembiochem : a European journal of chemical biology2026
Library-on-Library Intercellular Labeling for Selection of Biotin Ligase and Acceptor Peptides.
Article in Chembiochem : a European journal of chemical biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Library-on-Library Intercellular Labeling for Selection of Biotin Ligase and Acceptor Peptides.Chembiochem : a European journal of chemical biology · 2026Article
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6 authors.
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Abstract
Library-on-library (LOL) selection screens combinatorial libraries to generate new protein pairs. Previously, LOL selection has only been applied to stable protein-protein interactions. To extend LOL to transient enzyme-substrate pairs, a generalizable sequential LOL trans- and cis-labeling platform is developed, and a proof-of-concept selection is performed on Escherichia coli biotin ligase (BirA) and its acceptor peptide (AP). Using yeast surface display, AP mutant libraries are selected against BirA mutant libraries to identify AP variants trans-biotinylated by BirA mutants. Matched BirA mutants are subsequently enriched via the SpyTag-SpyCatcher-mediated cis-labeling platform. This represents the first demonstration of enzyme-peptide substrate LOL selection and offers a versatile framework for engineering new enzyme-peptide substrate pairs with varied activities.
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