ACS infectious diseases | 2019
A single tool to monitor multiple protein-protein interactions of the Escherichia coli acyl carrier protein.
Abstract
Protein-protein interactions are ubiquitous to all domains of life and have gained recent interest as drug targets. However, many current methods to study protein-protein interactions can be costly and are low-throughput. Here, we demonstrate a solvatochromic tool based on the natural post-translational modification of the Escherichia coli acyl carrier protein (EcACP) used to visualize protein-protein interactions between EcACP and thirteen different partner enzymes from several biosynthetic pathways. We use this tool to confirm proposed interactions between EcACP and both catalytic and regulatory proteins. We also show the utility of this method towards detecting allosteric changes to partner enzyme structure and the validation of active site inhibitors. We anticipate the future adaptation of this assay into a high-throughput screen for antibiotic discovery.