Table 2.

Real time PCR analysis of selected CSE-regulated P. gingivalis genes

Locus name*	Putative identification in TIGR and/or Oralgen database	Microarray (fold [mean, s.d.])	RT_PCR (fold [mean, s.d.])
PG1055	Thiol protease (Tpr)	13.93, 4.73	108.69, 21.43
PG2102	LPS-modified immunoreactive 61 kDa antigen	10.58, 1.47	36.62, 1.44
PG2100	Immunoreactive 63 kDa antigen	6.00, 1.23	30.79, 1.47
PG2008	tonB-linked outer membrane receptor P90	2.50, 2.00	1.74, 0.09**
PG1286	Ferritin (ftn)	2.02, 0.85	2.23, 0.21
PG1552	tonB-dependent receptor (HmuR, HemR)	0.47, 0.29	0.72, 0.02***
PG0111	Putative capsular polysaccaharide biosynthesis gene (CapK)	0.45, 0.04	0.78, 0.02***
PG1432	Sensor histidine kinase	0.39, 0.10	0.62, 0.05**
PG0117	Putative polysaccharide transport protein	0.36, 0.14	0.50, 0.08

^*The J. Craig Venter Institute annotations

^**>1.5, <2.0 fold change in gene activity

^***Reduced activity not reaching threshold (<1.5 fold)