Polymorphism and selection of rpoS in pathogenic Escherichia coli

BMC Microbiology

Table 4 Phenotypic Microarray (PM) analyses of growth changes resulted from rpoS mutations.

Carbon source	PM-value	Nitrogen source	PM-value
β-Methyl-D-Glucuronic Acid	102	Gly-Phe-Phe	157
L-Galactonic Acid-g-Lactone	98	Guanosine	137
L-Threonine	92	Nitrite	133
L-Alaninamide	70	D-Valine	125
L-Glutamine	67	Phe-b-Ala	124
L-Proline	66	L-Tyrosine	124
D-Trehalose	64	Tyr-Phe	120
D-Saccharic Acid	50	Phe-Phe	119
Propionic Acid	-51	Tyr-lle	118
Glycyl-L-Proline	-69	L-Glutamic Acid	113
α-Keto-Butyric Acid	-86	Ser-Gln	-67
α-Hydroxy-Butyric Acid	-110

PM-value shows the growth difference between WT and rpoS mutants on these nutrients as carbon or nitrogen sources. Positive values show phenotypes gained in rpoS mutants while negative values show phenotypes lost because of rpoS mutations. In total, rpoS mutants grew better on 92 nitrogen sources tested, and the top 10 are listed.

ISSN: 1471-2180