pTSara-NatB, an improved N-terminal acetylation system for recombinant protein expression in E. coli

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Abstract

© 2018 Rovere et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. N-terminal acetylation is one of the most common co- and post-translational modifications of the eukaryotic proteome and regulates numerous aspects of cellular physiology, such as protein folding, localization and turnover. In particular α-synuclein, whose dyshomeostasis has been tied to the pathogenesis of several neurodegenerative disorders, is completely Nα-acetylated in nervous tissue. In this work, building on previous reports, we develop and characterize a bacterial N-terminal acetylation system based on the expression of the yeast N-terminal acetyltransferase B (NatB) complex under the control of the PBAD (L-arabinose-inducible) promoter. We show its functionality and the ability to completely Nα-acetylate our model substrate α-synuclein both upon induction of the construct with L-arabinose and also by only relying on the constitutive expression of the NatB genes.

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Rovere, M., Powers, A. E., Patel, D. S., & Bartels, T. (2018). pTSara-NatB, an improved N-terminal acetylation system for recombinant protein expression in E. coli. PLoS ONE, 13(7). https://doi.org/10.1371/journal.pone.0198715

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