Table 2

Number and percentage of orthologous genes per functional category

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

Dufresne et al. Genome Biology 2005 6:R14   doi:10.1186/gb-2005-6-2-r14