H-NS controls metabolism and stress tolerance in Escherichia coli O157:H7 that influence mouse passage

BMC Microbiology

Table 3 Sole nitrogen source metabolism by the E. coli O157:H7 parent (ATCC 43895) and hns mutant (FRIK 47001) strains.

Amino acids and derivatives	Peptides	Other
Utilized by the parent strain but not the *hns* mutant
D-Alanine	Ala-His	Alloxan
L-Alanine	Ala-Leu	γ-amino-N-Butyric acid
L-Arginine	Ala-Thr	Cytosine
L-Cysteine		N-acetyl-D-Galactosamine
Glycine		D-Glucosamine
L-Proline		N-acetyl-D-Glucosamine
L-Tryptophan		Glucuronamide
		N-acetyl-D-Mannosamine
		L-Ornithine
		Xanthine
		Xanthosine
Utilized by the parent and *hns* mutant strains
L-Aspartic Acid	Ala-Asp	Adenine
L-Asparagine	Ala-Gln	Adenosine
L-Glutamic Acid	Ala-Glu	Ammonia
L-Glutamine	Ala-Gly	Cytidine
L-Serine	Gly-Asn
	Gly-Gln
	Gly-Glu
	Gly-Met
	Met-Ala

ISSN: 1471-2180