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Table 1 Distribution of functional classes

From: Relationship between operon preference and functional properties of persistent genes in bacterial genomes

 

COG functional class

Gene

distr.

(%)

Norm. gene distr. (%)

COG distr.

(%)

Norm. COG distr. (%)

J

Translation, ribosomal structure and biogenesis

35.2

37.8

4.7

9.0

L

Replication, recombination and repair

12.6

13.5

4.6

8.8

F

Nucleotide transport and metabolism

8.3

8.9

1.8

3.5

M

Cell wall/membrane/envelope biogenesis

6.5

7.0

3.6

6.9

O

Posttranslational modification, protein turnover, chaperones

5.2

5.6

3.9

7.4

R

General function prediction only

4.8

-

13.6

-

K

Transcription

4.8

5.2

4.5

8.6

H

Coenzyme transport and metabolism

3.9

4.2

3.5

6.7

U

Intracellular trafficking, secretion and vesicular transport

3.5

3.8

3.1

6.0

I

Lipid transport and metabolism

2.6

2.8

1.8

3.5

C

Energy production and conversion

2.6

2.8

5.0

9.5

S

Function unknown

2.2

-

26.1

-

D

Cell cycle control, cell division, chromosome partitioning

2.2

2.4

1.4

2.6

E

Amino acid transport and metabolism

2.2

2.4

5.2

10.0

G

Carbohydrate transport and metabolism

1.7

1.8

4.5

8.6

Q

Secondary metabolites biosynthesis, transport and catabolism

1.3

1.4

1.7

3.2

T

Signal transduction mechanisms

0.4

0.4

2.9

5.6

  1. Functional class distribution of the 213 genes found in our analysis compared to the general distribution in the full COG database (expressed as percentages). The normalised distribution is computed using only the COG groups actually found in the analysis, also excluding genes with only predicted or unknown function.