Table 1.
Strain or plasmid | Relevant characteristics * | Source or reference |
---|---|---|
E. coli | ||
TOP10 | Cloning strain | Invitrogen |
BL21DE3 | Host strain for two-plasmid system | Stratagene |
BL21Rosetta/pLysS | Host strain for overexpressing H. pylori proteins; Cmr | Novagen |
H. pylori | ||
43504 | Parental strain | ATCC† |
hypA mutant | hypA::aphA3; Kmr | Olson et al. (2001) |
hypA H2A mutant | Codon for His2 replaced by Ala within hypA | Mehta et al. (2003b) |
ureE mutant | ureE::aphA3; Kmr | Voland et al. (2003) |
ΔureAB mutant | ΔureAB::cat; Cmr | This study |
Plasmid | ||
pHP8080 | pACYC184 derivative with H. pylori ureABIEFGH and nixA; Cmr | McGee et al. (1999) |
pET21b | Cloning and expression vector; Apr | Novagen |
pET-HypA | pET derivative plasmid for overexpression of HypA | Mehta et al. (2003b) |
pET-HypA-H2A | pET-HypA with His2 replaced by Ala | Mehta et al. (2003b) |
pET-HypB | pET derivative plasmid for overexpression of HypB | Mehta et al. (2003b) |
pET-HypC | pET derivative plasmid for overexpression of HypC | This study |
pET-UreE | pET derivative plasmid for overexpression of UreE | Benoit & Maier (2003) |
pET-UreG | pET derivative plasmid for overexpression of UreG | Mehta et al. (2003a) |
pET-HypA+UreE | pET derivative plasmid for overexpression of HypA and UreE | This study |
Ap, Ampicillin; Cm, chloramphenicol; Km, kanamycin.
American Type Culture Collecion, Manassas, VA, USA.