. 2013 Mar;159(Pt 3):493–506. doi: 10.1099/mic.0.063032-0

Table 3. Real-time-PCR analysis of selected genes.

Unique ID	Description/putative function*	Fold-difference relative to UA159†
		TW14D	TW251	TW314
ldh	Lactate dehydrogenase, Ldh	1.08	1.21	−1.01
SMU.787	Transcriptional regulator, Psr-like protein	1.37	nd	nd
SMU.246	Glycosyltransferase N-acetylglucosaminyltransferase, RgpG	−4.0^a	−2.74^a	1.1
gtfB	Glucosyltransferase B	2.36^a	−1.43	16.0^a
gtfC	Glucosyltransferase C	1.17	−3.96^a	6.13^a
gtfD	Glucosyltransferase D	−1.35	−3.0^a	−1.52
SMU.713	Cell division protein, FtsW	−4.75 ^a	−2.77^a	−1.77^b
SMU.550	Cell division protein, FtsQ	−2.08^a	−4.80^a	4.56^a
SMU.1324	Cell division ABC transporter, FtsX	−1.94^a	−1.78^a	−1.08
SMU.1003	Glucose-inhibited division protein, GidA	−2.29^a	−2.9^a	1.8^b
SMU.1279	Cell division protein; shape-determining protein, RodA	1.09	−3.23^a	1.69^b

Description and putative function of the selected genes are based upon those in the published Strep. mutans database.

^†

Data presented here are ratios of the levels of expression in the BrpA- and Psr-deficient mutants, TW14D and TW251, and the Psr-deficient and BrpA-down mutant, TW314, relative to those of the wild-type, UA159, with ‘−’ representing downregulation. Superscript ^a and ^b indicate statistical difference between the wild-type and the respective mutant at significance level of P<0.001 and 0.01, respectively. nd, Not detectable.