Fig 6. Fibronectin binding protein A (fnbA) RNA expression (A) and fibronectin binding proteins (FnBPs) expression (B) in randomly selected S. aureus bloodstream isolates from patients with infected (PJI) and uninfected (PJU) prosthetic hip or knee joints.
(A) RNA expression is represented as percent fnbA expression relative to S. aureus control 8325–4. Box ends represent the 25th and 75th percentiles, and whisker ends represent the minimum and maximum. There is no significant difference in fnbA expression between the two groups. (B) Fibronectin-binding protein expression was determined with Western ligand affinity blotting. There is no major difference in expression between the two clinical groups. Protein size (kilodaltons) is displayed and the double mutant fnbAB is included as a control.