Table 1. Transformation frequencies of S. aureus strains.

	Recipient strain
	N315h	N315ΔcomEh	N315ΔcomGh	N315	N315ex w/oφ	N315ex w/oφ
					pRIT-sigH	pRIT5H
Donor
	4.0×10−9±3×10−9
Plasmid DNA (10 µg pT181)	(n = 11)
	ND	ND	ND	ND
	(n = 1)	(n = 3)	(n = 3)	(n = 3)
	9.0×10−7±6.6×10−9			2×10−10
	(n = 12)			(n = 1)
COL/pT181		ND	ND	ND
		(n = 5)	(n = 4)	(n = 9)
Plasmid DNA (10 µg pHY300)					1.5×10−6±6.3×10−7	ND
					(n = 3)	(n = 2)

Frequencies = number of transformants/cfu of recipient strain; mean ± SD.

ND: none detected.