TABLE 1.
Bacterial strains and plasmid used in this study
| Strain or plasmid | Description or relevant genotypea | Reference or source |
|---|---|---|
| Strains | ||
| A12 | Clinical strain isolated from supragingival dental plaque of a caries-free subject | 22 |
| A12 ΔpcfV | ΔpcfV Kmr | This study |
| A12 ΔpcfO | ΔpcfO Kmr | This study |
| A12 ΔpcfFEG | ΔpcfFEG Kmr | This study |
| A12 ΔpcfRK | ΔpcfRK Kmr | This study |
| A12 Δpeg.1179 | Δpeg.1179 Kmr | This study |
| A12 Δsgc | Δsgc Emr | 22 |
| A12 ΔspxB | ΔspxB Kmr | 22 |
| S. gordonii DL1 | Wild-type reference strain | Laboratory stock |
| S. sanguinis SK150 | Wild-type reference strain | Laboratory stock |
| S. mutans UA159 | Wild-type reference strain | ATCC |
| S. mutans pBGS | S. mutans UA159::pBGS; Spr | This study |
| SAB358 | S. mutans UA159::PcomX-lacZ; Kmr | 76 |
| SAB249 | S. mutans UA159::PcipB-lacZ; Kmr | 22 |
| Plasmid pBGS | Streptococcus integration vector; Spr | 75 |
a
Kmr, kanamycin resistance; Spr, spectinomycin resistance; Emr, erythromycin resistance.