TABLE 2.

Enzyme genes upregulated on DAP but not on Lys in Thalassospira sp. strain A40-3^a

Gene (protein)	DAP		Lysine
	Fold changeb	P valuec	Fold changeb	P valuec
carB (carbamoyl-phosphate synthase)	8.66	1.66E−08	−1.19	3.29E−15
metB (O-succinylhomoserine sulfhydrylase)	7.78	7.39E−15	−1.97	2.52E−52
thrA (aspartokinase)	6.37	2.65E−265	−0.61	5.02E−04
lysA (diaminopimelate decarboxylase)	6.11	1.01E−092	0.75	2.08E−07
aroA (cytidylate kinase)	5.30	1.13E−07	−0.84	4.31E−06
aro (B3-dehydroquinate synthase)	5.13	2.86E−07	0.62	3.18E−06
hisA (imidazole-4-carboxamide isomerase)	5.04	4.68E−07	0.82	2.91E−05
pyc (pyruvate carboxylase)	2.95	2.35E−51	−3.93	9.44E−181
fumA (fumarate hydratase class I)	2.56	4.00E−42	−3.88	6.62E−138
glyA (serine hydroxymethyltransferase)	2.31	1.39E−27	0.36	7.17E−03
HPD (hemolysin)	2.19	2.20E−03	−5.98	4.27E−190
glcD (glycolate oxidase subunit)	2.09	1.78E−27	0.66	8.52E−06

^aThe resting cells of the strain were cultured with DAP or Lys as the sole N source to the middle of the logarithmic growth phase, and then cells were collected as the DAP sample and the Lys sample. The resting cells in sea salt solution were taken as the 0-h sample.

^bCalculated by comparing the transcription level of the gene in the DAP or Lys sample to that in the 0-h sample.

^cCalculated by Fisher’s exact test with FDR correction.