Table 1. Cell surface associated component genes’ expression in 630Δerm 72-hour biofilm cells, compared to planktonically grown cells.

Gene ID	Gene name	Gene function/product	Fold change
Fatty acid biogenesis
CD1183	acpP	ACP	9.92
CD1062	acpP	ACP	9.45
Cell wall
CD2766	lcpB	Ligase anchoring polysaccharide to the cell wall	24.93
CD2762	uppS	Putative undecaprynyl phosphate synthetase	−1.23
Exported proteins
CD2831		Putative adhesin	6.77
CD2830	zmp1	Extracellular zinc metalloprotease	−1.16
CD0873		Adhesin and sugar binding lipoprotein (ABC transport)	65.34
Type IV pili biogenesis
CD3513	pilA1	Putative pilin protein	6.11
CD2305	pilW	Putative pilin protein	11.31
CD3504		Putative type IV prepilin peptidase, A24A family	6.45
CD3506		Conserved hypothetical protein	6.19
CD3507		Putative type IV pilin	10.78
CD3508		Putative type IV pilin	12.91
CD3509		Putative type IV pilus assembly protein	10.13
CD3510		Putative membrane protein	9.78
CD3511		Putative type IV pilus secretion protein	9.25
Flagellum biogenesis
CD0234	csrA	Carbon storage regulator homolog CsrA	−1.35
CD0254	flgD	Basal-body rod modification protein FlgD	−1.24
CD0255	flgE	Flagellar hook protein FlbE (distal rod protein)	−1.29
CD0255A	flbD	Flagellar protein FlbD	−1.28
CD0263	flhA	Flagellar biosynthesis protein FlhA	−1.19

630Δerm biofilm was grown in a continuous flow microfermentor for 72 hours with gene expression measured by microarray. Negative integers represent decreased expression. (Data from [52] transformed to show absolute fold changes).

ACP, acyl carrier protein.