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Table 2 Number and percentage of orthologous genes per functional category

From: Accelerated evolution associated with genome reduction in a free-living prokaryote

Category Number of genes % of orthologs
Amino-acid transport and metabolism 94 7.2
Carbohydrate transport and metabolism 50 3.8
Cell-cycle control 17 1.3
Cell wall/membrane biogenesis 55 4.2
Coenzyme metabolism 99 7.6
Defense mechanisms 14 1.1
Energy production and conversion 106 8.1
Function unknown 269 20.6
General function prediction only 116 8.9
Inorganic ion transport and metabolism 47 3.6
Intracellular trafficking 13 1.0
Lipid transport and metabolism 25 1.9
Nucleotide transport and metabolism 39 3.0
Posttranslational modification, protein turnover 59 4.5
Replication, recombination and repair 51 3.9
Secondary metabolite biosynthesis, transport and catabolism 6 0.5
Signal transduction mechanisms 11 0.8
Transcription 26 2.0
Translation 127 9.7
Miscellaneous 82 6.3