. 2003 Aug;185(16):4806–4815. doi: 10.1128/JB.185.16.4806-4815.2003

TABLE 1.

Effect of carbon source on nanA induction

Carbon source^a	Relevant genotype	β-Galactosidase activity (Miller units)	Fold induction
None	nanR⁺	25 ± 9	1
Glucose	nanR⁺	5 ± 3	0.2
GlcNAc	nanR⁺	20 ± 2	0.7
GlcN	nanR⁺	50 ± 20	2
ManNAc	nanR⁺	50 ± 15	2
Man	nanR⁺	100 ± 30	4
Neu5Ac	nanR⁺	5,300 ± 950	212
Glucose^b	nanR6	3,300 ± 350	132
Glycerol^b	nanR6	7,850 ± 450	314
Glucose^b	nanR7	2,500 ± 160	100
Glycerol^b	nanR7	8,300 ± 990	332

Unless otherwise indicated, strain JM101 bearing a nanA-lacZ fusion was grown in minimal E medium and 0.5% Casamino Acids with glycerol as the carbon source at 0.4% final concentration or with the indicated sugar added to a final concentration of 2 mg/ml. The results are the averages of three independent measurements±standard deviations.

JM101 carrying the nanA-lacZ fusion and either nanR6 or nanR7 was grown in MOPS (morpholine propanesulfonic acid) medium at 30°C with 0.2% glucose or 0.4% glycerol. The results are the means of two independent cultures. Abbreviations are defined in the text.