TABLE 1.

Bacterial strains used in this study

Strain	Major property(ies)a	Reference
S. mutans UA159	Wild-type, serotype c	38
S. mutans NG8	Wild-type, serotype c	39
S. mutans SAB102	UA159 derivative, srtA, Kanr	5
S. mutans 630NP	UA159 derivative, atlA, Kanr	67
S. mutans PC339	NG8 derivative, srtA, Ermr	3
S. mutans SJ271	SAB102/pDL278::srtA, Kanr, Sper	5
S. mutans AH374	NG8 derivative, yidC1, Ermr	70
S. mutans AH378	NG8 derivative, yidC2, Kanr	70
S. mutans AH329	NG8 derivative, ffh, Ermr	70
S. mutans AH312	NG8 derivative, scRNA, Kanr	70
S. mutans AH307	NG8 derivative, ftsY, Kanr	70
S. anginosus KSB8	S. anginosus harboring gtfB of S. mutans	15

^aKan^r, Spe^r, and Erm^r indicate kanamycin, spectinomycin, and erythromycin resistance, respectively.