TABLE 1.

Preferentially retained OM-associated proteins are enriched in transport and iron homeostasis GO categories.

GO biological process	Preferentially retained proteins		Preferentially exported proteins
	Fold enrichment	P-value	Fold enrichment	P-value
Siderophore transmembrane transport	90.9	3.52E-10	<0.01	1.00E00
• Iron ion transmembrane transport	70.7	3.83E-11	<0.01	1.00E00
• Siderophore transport	60.6	3.41E-12	<0.01	1.00E00
Gram-negative-bacterium-type cell outer membrane assembly	45.6	3.36E-06	<0.01	1.00E00
Bacteriocin transport	45.4	6.95E-05	<0.01	1.00E00
Protein localization to membrane	21.6	4.69E-04	11.0	9.08E-02
Iron ion homeostasis	19.4	7.70E-06	<0.01	1.00E00
Lipid transport	18.9	8.63E-06	<0.01	1.00E00