TABLE 3.

Transformation frequencies of plasmid insertion into the gonococcal chromosome

Plasmid	Insert size (bp)	Transformation frequencya
pNH10-1M	890	4.39 × 10−6 ± 9.9 × 10−7
pHH1	290	1.23 × 10−7 ± 3.4 × 10−8
pHH2	540	8.51 × 10−7 ± 4.2 × 10−8
pHH3	350	3.52 × 10−7 ± 1.6 × 10−8

^aReported as the number of Em^r transformants per total CFU. All values are significantly different; P < 0.005 by Student's t test.