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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