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Quantitative analysis of clumping phenotype observed in tsr37 overexpressor strain. A clumping assay was performed using S. aureus strain AH1263 overexpressing tsr37 (pMK4 tsr37-his), and results were compared to those seen with an empty vector control (pMK4 empty vector). The proportion of clumping of the empty vector control after 2 h was 7.9% compared to 79.2% for the tsr37-overexpressing strain.
