Lysine succinylome analysis of MRSA reveals critical roles in energy metabolism and virulence.

This article focuses on the comprehensive analysis of lysine succinylation, a post-translational modification, in methicillin-resistant Staphylococcus aureus (MRSA) to elucidate its roles in bacterial metabolism, virulence, and biofilm formation. Using proteomics and bioinformatics, the study identified 8,048 succinylation sites on 1,210 MRSA proteins, with significant enrichment in metabolic pathways such as glycolysis, the tricarboxylic acid (TCA) cycle, and aminoacyl-tRNA biosynthesis, highlighting succinylation’s regulatory impact on energy production and bacterial growth. Key virulence factors, including fibronectin-binding protein A (FnbA), bifunctional autolysin, and LuxS, were found to be highly succinylated, suggesting that succinylation modulates MRSA’s pathogenicity and biofilm development. These findings provide potential molecular targets for novel antibiofilm strategies and therapeutic interventions against MRSA infections.