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Table 3 Phyletic distribution of the archaeal COGs

From: Towards understanding the first genome sequence of a crenarchaeon by genome annotation using clusters of orthologous groups of proteins (COGs)

Functional category Number of COGs including all five euryarchaeal species Number of COGs including all five euryarchaeal species and A. pernix Number of COGs including a subset of euryarchaeal species and A. pernix Number of COGs including A. pernix but none of the euryarchaeal species
Translation and ribosome biogenesis 113 109 17 0
Transcription 26 25 11 0
Replication, recombination, repair 38 27 15 2
Cell division and chromosome partitioning 3 1 0 0
Post-translational modification, 19 15 4 2
   protein turnover, chaperones     
Cell envelope biogenesis, outer membrane 8 7 8 0
Cell motility and secretion 8 8 6 0
Inorganic ion transport and metabolism 13 9 27 2
Signal transduction 4 4 5 1
Carbohydrate transport and metabolism 20 18 13 2
Energy production and conversion 36 22 33 18
Amino acid transport and metabolism 34 29 58 5
Nucleotide transport and metabolism 34 25 6 3
Coenzyme metabolism 25 21 30 2
Lipid metabolism 8 6 15 2
General functional prediction only 75 59 60 8
Uncharacterized 67 45 82 4
Total 514 416 273 50