TABLE 1

Strains and plasmids used in this study

Strain designation, strain characteristics, or plasmidSource or reference
P. gingivalis
    W83ATCC
    ΔPG0106::Erm (Emr) in strain W8320
    ΔPG0121::Erm (Emr) in strain W8325
    ΔPG0104::Erm (Emr) in strain W8325
    Δ77bpIR::Erm (Emr) in strain W83This study
    W83-Tc (Tcr) control in strain W83This study
    Δ77bpIR-C (Tcr) complementationThis study
Plasmids
    pHS1744
    pT-COW (Cbr Tcr)45
    pGEM-T-easyPromega
    pTloop1This study