Generation of single-cysteine E. coli ProQ variants to study RNA-protein interaction mechanisms.
microPublication biology(2024)
摘要
ProQ is a FinO-domain protein found in E. coli and other proteobacteria that has a global RNA-binding profile. In order to probe the detailed mechanism of RNA interactions, we have developed a collection of 13 E. coli ProQ variants that possess single-cysteine residues at varied positions on the surface of the N-terminal FinO domain and retain the ability to bind well to RNA. This set of variant ProQ proteins will support future biochemical and biophysical studies to map the orientation of bound RNAs to different sites around the ProQ protein, shedding light on the mechanism of ProQ-RNA interactions.
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