TABLE 1.

Summary of immunogold detection of pili expressed by regulatable RM11.2

Growth condition	Level of induction (mM IPTG)	Total cells examined	% Piliated cells
Liquid medium	0	5,185	NDa
	0.005	859	0.5
	0.5	247	5
Agar medium	0	6,522	0.00015
	0.005	704	3
	0.02	661	8
	0.5	123	55

^aND = not detected.