Updated publication reference for PubMed record(s): 30540769. Total cytosolic protein fractions of Staphylococcus aureus strains SA564, SA564-ΔhptRS, SA564-ΔccpA and SA564-ΔhptRS/ccpA were analyzed by LC-MSE . Five biological replicates of each strain, cultivated in TSB and TSB-dex, during the exponential (2h) and post exponential (6h) growth phases (80 samples) were investigated.