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Table 1 Functional classification of differentially expressed genes under nitrogen starvation in X. fastidiosa.

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

Functional Category*   Temporal series§
  2 h 8 h 12 h
Intermediary metabolism (25/34) #    
Degradation (5/3) 2/0 1/3 2/2
Central intermediary metabolism (5/10) 4/0 2/7 3/6
Energy metabolism, carbon (3/17) 1/2 3/16 0/14
Regulatory functions (12/4) 4/1 9/2 5/2
Biosynthesis of small molecules (28/25)    
Amino acids biosynthesis (13/10) 9/1 8/7 3/4
Nucleotides biosynthesis (2/5) 0/0 1/2 2/5
Sugars and sugar nucleotides biosynthesis (0/1) 0/0 0/1 0/0
Cofactors, prosthetic groups, carriers biosynthesis (8/5) 2/0 6/4 2/3
Fatty acid and phosphatidic acid biosynthesis (4/4) 2/0 2/2 1/3
Polyamines biosynthesis (1/0) 0/0 0/0 1/0
Macromolecule metabolism (28/37)    
DNA metabolism (8/8) 1/1 5/4 7/4
RNA metabolism (17/13) 3/0 13/11 11/9
Protein metabolism (3/16) 0/6 1/15 2/13
Cell structure (12/9)    
Membrane components (6/3) 2/0 1/1 3/2
Murein sacculus, peptidoglycan (2/0) 1/0 0/0 1/0
Surface polysaccharides, lipopolysaccharides, and antigens (2/1) 2/0 0/1 1/0
Surface structures (2/5) 2/0 2/4 1/5
Cellular processes (9/15)    
Transport (8/12) 4/0 6/5 3/11
Cell division (1/3) 1/0 1/3 0/1
Mobile genetic elements (16/7)    
Phage-related functions and prophages (8/1) 2/0 8/1 6/0
Plasmid-related functions (7/6) 3/0 6/6 3/2
Transposon- and intron-related functions (1/0) 0/0 0/0 1/0
Pathogenicity, virulence, and adaptation (9/13) 1/3 6/8 5/9
Hypothetical (122/52) 30/5 73/34 69/31
ORFs with undefined category (3/4) 1/0 2/2 0/2
Total (252/196) 77/19 156/139 132/128
  1. * Genes were categorized into functional classes according to the categories defined in the original annotation of the X. fastidiosa genome http://www.lbi.ic.unicamp.br/xf/.
  2. # The number of upregulated and downregulated genes, respectively, are indicated in parenthesis.
  3. § Number of genes upregulated and downregulated, respectively, during time points of the nitrogen starvation temporal series.