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Table 2 Functional distribution of orthologous protein groups of D. phosphitoxidans genome (COG classification)

From: Life based on phosphite: a genome-guided analysis of Desulfotignum phosphitoxidans

COG categories

Gene count

% of total (4699)

I. Information storage and processing:

  

  Translation, ribosomal structure and biogenesis

171

3.63

  Transcription

222

4.72

  DNA replication, recombination and repair

160

3.40

II. Cellular process:

  

  Cell cycle control and division, chromosome partitioning

48

1.02

  Posttranslational modification, protein turnover, chaperones

117

2.49

  Cell envelope biogenesis, outer membrane

256

5.45

  Cell motility

56

1.19

  Intracellular trafficking, secretion, vesicular transport

103

2.19

  Inorganic ion transport and metabolism

209

4.45

  - Phosphorus metabolism (phosphate, phosphite and organophosphonates

31

 

  - Sulphur and nitrogen

22

 

  - Other

156

 

  Signal transduction mechanisms

354

7.53

  Defence mechanisms/Stress

78

1.66

III. Metabolism:

  

  Energy production and conversion

424

9.02

  Carbohydrate transport and metabolism

182

3.87

  - Phosphorus – related (PTS system and sugar phosphate permeases)

14

 

  Amino acid transport and metabolism

332

7.06

  Nucleotide transport and metabolism

66

1.41

  Coenzyme metabolism

204

4.34

  Lipid metabolism

127

2.70

  Secondary metabolites biosynthesis, transport and catabolism

84

1.79

IV. General function prediction only

491

10.45

V. Unknown function

309

6.58

VI. Not in COGs

1051

22.37