Table 2.

Genes selected for further study.

Gene	Function/pathway	Condition(s) identified
cymR	Cysteine metabolism regulator	Sputum A-D and pooled
ylaN	Candidate Fur antagonist	Sputum A-D and pooled
nanE	Sialic acid metabolism	Sputum A-D and pooled
cntE	Staphylopine exporter	Sputum B, D, and pooled
cntA	Staphylopine importer	None (see text)
mntE	Manganese exporter	Sputum A-D and pooled
pruA	Proline metabolism	Sputum B-D and pooled
copA	Copper efflux pump	Sputum B, D, and pooled
rpsN2	Zn2+-independent alternative S14 ribosomal protein	Sputum B, D, and pooled