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Kubitz L, Bitsch S, Zhao X, Schmitt K, Deweid L, Roehrig A, Barazzone EC, Valerius O, Kolmar H, Béthune J. Engineering of ultraID, a compact and hyperactive enzyme for proximity-dependent biotinylation in living cells. Commun Biol 2022; 5:657. [PMID: 35788163 PMCID: PMC9253107 DOI: 10.1038/s42003-022-03604-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 06/20/2022] [Indexed: 12/11/2022] Open
Abstract
Proximity-dependent biotinylation (PDB) combined with mass spectrometry analysis has established itself as a key technology to study protein-protein interactions in living cells. A widespread approach, BioID, uses an abortive variant of the E. coli BirA biotin protein ligase, a quite bulky enzyme with slow labeling kinetics. To improve PDB versatility and speed, various enzymes have been developed by different approaches. Here we present a small-size engineered enzyme: ultraID. We show its practical use to probe the interactome of Argonaute-2 after a 10 min labeling pulse and expression at physiological levels. Moreover, using ultraID, we provide a membrane-associated interactome of coatomer, the coat protein complex of COPI vesicles. To date, ultraID is the smallest and most efficient biotin ligase available for PDB and offers the possibility of investigating interactomes at a high temporal resolution. A small-size engineered enzyme, ultraID, is presented for proximity-dependent biotinylation, that shows efficient labeling in mammalian cell culture, E. coli and S. cerevisiae.
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Affiliation(s)
- Lea Kubitz
- Heidelberg University Biochemistry Center, Heidelberg, Germany
| | - Sebastian Bitsch
- Institute for Organic Chemistry and Biochemistry, Technische Universität Darmstadt, Darmstadt, Germany
| | - Xiyan Zhao
- Heidelberg University Biochemistry Center, Heidelberg, Germany
| | - Kerstin Schmitt
- Institute of Microbiology and Genetics, Göttingen Center for Molecular Biosciences (GZMB) and Service Unit LCMS Protein Analytics, Georg-August-University Göttingen, Göttingen, Germany
| | - Lukas Deweid
- Institute for Organic Chemistry and Biochemistry, Technische Universität Darmstadt, Darmstadt, Germany.,Ferring Pharmaceuticals, Copenhagen, Denmark
| | - Amélie Roehrig
- Heidelberg University Biochemistry Center, Heidelberg, Germany.,Inserm UMRS1138 - FunGeST team, Paris, France
| | - Elisa Cappio Barazzone
- Heidelberg University Biochemistry Center, Heidelberg, Germany.,Department of Health Sciences and Technology, ETH Zürich, Zürich, Switzerland
| | - Oliver Valerius
- Institute of Microbiology and Genetics, Göttingen Center for Molecular Biosciences (GZMB) and Service Unit LCMS Protein Analytics, Georg-August-University Göttingen, Göttingen, Germany
| | - Harald Kolmar
- Institute for Organic Chemistry and Biochemistry, Technische Universität Darmstadt, Darmstadt, Germany
| | - Julien Béthune
- Department of Biotechnology, Hamburg University of Applied Sciences, Hamburg, Germany.
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