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Table 2 Differentially expressed genes under nitrogen starvation in the rpoN mutant compared to the wild-type strain.

From: Global gene expression under nitrogen starvation in Xylella fastidiosa: contribution of the σ54 regulon

Gene ID Product§ Ratio (log2)#
Downregulated genes (positively regulated by RpoN)  
XF2542* fimbrial protein -3.79
XF2272* 5-methyltetrahydropteroyltriglutamate homocysteine methyltransferase -2.21
XF1819* threonine dehydratase catabolic -1.62
XF1121* 5,10-methylenetetrahydrofolate reductase -1.51
XF2699 transcription termination factor Rho -1.37
XF0180* hypothetical protein -1.03
XF2207 cationic amino acid transporter -0.80
Upregulated genes (negatively regulated by RpoN)  
XF1109 hypothetical protein 1.89
XF2343 recombination protein N 1.63
XF0887 mannosyltransferase 1.61
XF1830 nitrile hydratase activator 1.52
XF2551 conserved hypothetical protein 1.46
XF1658 phage-related repressor protein 1.30
XF1781 hypothetical protein 1.29
XF1117 hypothetical protein 1.24
XF2555 lysyl-tRNA synthetase 1.23
XF1469 conserved hypothetical protein 1.17
XF1078 DNA uptake protein 1.16
XF0412 nitrate ABC transporter ATP-binding protein 1.14
XF0318 NADH-ubiquinone oxidoreductase, NQO14 subunit 1.08
XF0221 hypothetical protein 0.94
XF2377 hypothetical protein 0.81
  1. § Predicted function based on sequence similarity.
  2. # Log ratio of fluorescence intensity in strain rpoN compared to the J1a12 strain [log2(IrpoN/IJ1a12)], both grown up under nitrogen starvation during two hours. Microarray analyses were carried out for three independent biological samples and a gene was classified as differentially expressed if at least four of its six replicates were outside the intensity-dependent cutoff curves.
  3. * Genes induced under nitrogen starvation in at least one point of the temporal series.