Table 3. H. pylori genes with higher expression^a in IDA strains.

Gene designation	Gene name			Expression ratio
and category		Predicted function		(IDA / control)	p value
Cell envelope:
HP0722	sabB (HopO)	adhesin		10.9	< 0.001
HP0725	sabA (HopP)	adhesin		3.7	< 0.001
HP0217	cgtA	LPS synthesis		3.6	0.002
DNA metabolism:
HP0142	mutY	DNA repair		5.4	< 0.001
HP0462	hsdS	restriction system		7.3	< 0.001
HP0463	hsdM	restriction system		10.6	< 0.001
HP0592	res	restriction system		3.6	0.003
Cellular processes:
HP0682	coaX	CoA synthesis		84.0	0.003
HP1510	folB	folic acid synthesis		3.7	< 0.001
HP1511		predicted frpB-like protein		3.6	< 0.001
Other categories:
HP0428	terY	phage/colicin		3.5	0.02
HP0414		transposase A		4.3	0.018
HP0731	leoA	toxin production		3.9	< 0.001
HP1000		partition protein A		6.0	< 0.001
Hypothetical proteins:
HP0016		unknown		5.2	< 0.001
HP0059		unknown		3.9	0.001
HP0120		unknown		6.0	< 0.001
HP0199		unknown		4.1	0.001
HP0435	COG1112 superfamily DNA and RNA-helicase	unknown		3.7	0.022
HP0436	COG3843, virD2	unknown		5.9	0.015
HP0489		unknown		3.6	0.03
HP0583		unknown		4.5	< 0.001
HP0999		unknown		4.6	0.021
HP1116		unknown		3.5	0.047
HP1165	tetA	unknown		4.3	< 0.001
HP1334	COG1432	unknown		3.8	< 0.001
HP1371	type III restriction enzyme R protein	unknown		4.1	0.001
HP1388		unknown		4.2	0.036
HP1589	COG4735	unknown		3.8	0.004

^a As determined by microarray analysis (see Methods).