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. Author manuscript; available in PMC: 2012 Apr 3.
Published in final edited form as: DNA Repair (Amst). 2011 Feb 2;10(4):373–379. doi: 10.1016/j.dnarep.2011.01.004

Table 2.

Transformation frequency with different types of donor DNA

H. pylori strains Donor DNA
rpoB3 (330 bp) acnB:Kan (2.5 kb)
X47 WT 2.56 ± 0.38 × 10−4 7.20 ± 0.84 × 10−6
X47 recR::cat 3.25 ± 0.76 × 10−4 5.60 ± 0.32 × 10−6
X47 recO::aphA 3.04 ± 0.82 × 10−4 ND
X47 addA::cat recO::aphA 2.13 ± 0.68 × 10−5 ND
X47 addA::cat 3.09 ± 0.62 × 10−5 2.90 ± 0.30 × 10−7

The transformation frequencies are presented as the number of transformants (resistant colonies) per recipient cell. Data are means ± standard errors from three independent determinations. ND: When a strain contains a KanR marker (aphA gene), the transformation frequency with acnB:Kan cannot be determined.