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Table 2 Differentially expressed genes in free-floating Porphyromonas gingivalis ATCC 33277 cells either in presence of a growing biofilm or in pure planktonic growth (cutoff ratio ± 1.5-fold change, p-value < 0.05) for the microarray analysis

From: Comparative gene expression analysis of planktonic Porphyromonas gingivalis ATCC 33277 in the presence of a growing biofilm versus planktonic cells

Open reading framea Genea Protein or function Expression ratio by Microarrayb (SD)
PGN_0181   Fimbrillin-A associated anchor proteins Mfa1 and Mfa2 −1.60 (0.09)
PGN_0183 fimC Minor component FimC −1.76 (0.16)
PGN_0493   Heavy-metal-associated domain (Hma) + 1.56 (0.03)
PGN_0495   Conserved hypothetical protein + 1.73 (0.15)
PGN_0529 batA Aerotolerance-related membrane protein BatA −1.62 (0.02)
PGN_0557 hmuR TonB-dependent receptor HmuR + 1.67 (0.13)
PGN_0604   Ferritin + 1.78 (0.08)
PGN_0649   Conserved hypothetical protein + 1.78 (0.18)
PGN_0780 prtQ PrtQ, protease + 1.84 (0.41)
PGN_0787   Conserved hypothetical protein + 1.61 (0.06)
PGN_1058 ftn Ferritin + 1.74 (0.12)
PGN_1093   Conserved hypothetical protein −1.61 (0.14)
PGN_1206 folD Methylenetetrahydrofolate dehydrogenase/ cyclohydrolase + 1.86 (0.25)
PGN_1312   Probable transcriptional regulator as Arg-repressor + 1.85 (0.47)
PGN_1494   Putative oxygen-independent coproporphyrinogen III + 2.02 (0.02)
PGN_1534   Hypothetical protein + 1.95 (0.28)
PGN_2071 topA DNA topoisomerase I + 2.26 (0.18)
PG_0009   ISPg5 transposase Orf1 + 1.74 (0.16)
PG_0437   Polysaccharide export protein, BexD/CtrA/VexA family + 1.89 (0.42)
PG_0718   Conserved hypothetical protein + 1.99 (0.38)
PG_0942   ISPg5 transposase Orf1 + 1.59 (0.01)
PG_1169   Hypothetical protein + 1.93 (0.28)
PG_1403   Rhomboid family protein + 1.70 (0.09)
PG_1712   Alpha-1,2-mannosidase family protein −1.52 (0.02)
PG_1979   Hypothetical protein + 1.82 (0.26)
PG_2094   Conserved domain protein + 1.91 (0.32)
PG_2130   Hypothetical protein −1.58 (0.09)
PG_2131   OmpA_C-like −1.61 (0.04)
  1. aPutative identification from Genebank. b Results of three biological replicates. Expression ratio by Microarray indicates the mean fold expression (SD) of that gene