Table 1. Bacterial strains and plasmids used in this study.
| Strain or plasmid | Relevant characteristics | Source or reference |
| Strains | ||
| Strep. mutans UA159 | Wild-type, serotype c | Ajdić et al. (2002) |
| Strep. mutans JB409 | Derivative of UA159, ΔbrpB (SMU.409), Kanr | This study |
| Strep. mutans JB409C | JB409 carrying pDL278:brpB, Sper, Kanr | This study |
| Strep. mutans JB819 | Derivative of UA159, ΔbrpBA (SMU.409-410), Kanr | This study |
| Strep. mutans JB819C | JB819 carrying pDL278:brpBA, Sper, Kanr | This study |
| Plasmids | ||
| pDL278 | Shuttle vector, Sper | LeBlanc & Lee (1991) |
| pDL278:brpB | Shuttle carrying brpB, Sper | This study |
| pDL278:brpBA | Shuttle carrying brpBA, Sper | This study |
Kanr and Sper are kanamycin and spectinomycin resistance, respectively.