Accumulation of Succinyl Coenzyme A Perturbs the Methicillin-Resistant Staphylococcus aureus(MRSA) Succinylome and Is Associated with Increased Susceptibility to Beta-Lactam Antibiotics

mecA-dependent methicillin resistance in MRSA is subject to regulation by numerous accessory factors involved in cell wall biosynthesis, nucleotide signaling, and central metabolism. Here, we report that mutations in the TCA cycle gene, sucC, increased susceptibility to β-lactam antibiotics and was accompanied by significant accumulation of succinyl-CoA, which in turn perturbed lysine succinylation in the proteome.