Table 2.
Comparison of lengths of imported flanking DNAs in homologous transformation of H. pylori strains 26695 and 26695-REd with donor DNA from strain J99 ureA::cat (generated by transforming J99 with pAD1-Cat)
| Category | Mean length (bp) ± SD for recipient straina |
|
|---|---|---|
| 26695 | 26695-REd | |
| Length of flanking DNA upstream of cat cassette | 1,537 ± 1,079 | 2,341 ± 1,467 |
| Length of flanking DNA downstream of cat cassette | 1,684 ± 1,132 | 861 ± 451 |
| Total length of imported DNA | 3,221 ± 1,546 | 3,202 ± 1,640 |
a
Mean of nine independent transformants.