ArticleProtein expression and purification2020
N-terminal fusion of the N-terminal domain of bacterial enzyme I facilitates recombinant expression and purification of the human RNA demethylases FTO and Alkbh5.
Article in Protein expression and purification, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Article
- Cis-Acting Chaperoning by Macromolecular Tethering: A Built-In Layer of Cellular Chaperoning.International journal of molecular sciences · 2026Review
- Structure-based Discovery of a Non-competitive FTO Inhibitor Bound to a Cryptic Site at the Domain Interface.Journal of molecular biology · 2026Article
- Article
- An α-ketoglutarate conformational switch controls iron accessibility, activation, and substrate selection of the human FTO protein.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Article
- Solution structure ensemble of human obesity-associated protein FTO reveals druggable surface pockets at the interface between the N- and C-terminal domain.The Journal of biological chemistry · 2022Article
- Article
- Structure elucidation of the elusive Enzyme I monomer reveals the molecular mechanisms linking oligomerization and enzymatic activity.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Hybrid Thermophilic/Mesophilic Enzymes Reveal a Role for Conformational Disorder in Regulation of Bacterial Enzyme I.Journal of molecular biology · 2020Article
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4 authors.
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Abstract
Various fusion tags are commonly employed to increase the heterologous expression and solubility of aggregation-prone proteins within Escherichia coli. Herein, we present a protocol for efficient recombinant expression and purification of the human RNA demethylases Alkbh5 and FTO. Our method incorporates a novel fusion tag (the N-terminal domain of bacterial enzyme I, EIN) that dramatically increases the solubility of its fusion partner and is promptly removed upon digestion with a protease. The presented protocol allows for the production of mg amounts of Alkbh5 and FTO in 1L of both rich and minimal media. We developed a liquid chromatography-mass spectrometry (LC-MS)-based assay to confirm that both proteins are enzymatically active. Furthermore, the LC-MS method developed here is applicable to other members of the AlkB family of Fe(II)/α-ketoglutarate-dependent dioxygenases. The superior protein yield, afforded by our expression and purification method, will facilitate biochemical investigations into the biological function of the human RNA demethylases and endorse employment of EIN as a broadly applicable fusion tag for recombinant expression projects.
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