Table 1.

Percent increase in the clumping of S. aureus and L. lactis cells under shear (and static) conditions. Shown are results of strains that produce only one particular FnBP protein as well as mutants that produce neither FnBPs (labelled “others”). Percent clumping is highlighted in different intensities of pink for visualization.

bacteria	cell-wall proteins	ligand-free	fibronectin (Fn)	fibrinogen (Fg)
S. aureus	FnBPA	56%† (2%)	78% (4%)	67% (4%)
	FnBPB	44%† (1%)	60% (11%)	55% (2%)
	others	12% (1%)	12% (1%)	21% (1%)
L lactis	FnBPA	0%*,† (3%)	25% (7%)	0% (3%)
	FnBPB	16%† (3%)	69% (8%)	8% (3%)
	others	0% (2%)	0% (3%)	0% (3%)

^*clumping detected after 24 hours;

^†soluble Zn enhanced homo-aggregation under shear conditions.