Table 4. Number of genes associated with the 25 general COG functional categories

J

199

2.4

Translation, ribosomal structure and biogenesis

A

1

0

RNA processing and modification

K

831

10.2

Transcription

L

234

2.9

Replication, recombination and repair

B

1

0

Chromatin structure and dynamics

D

42

0.5

Cell cycle control, mitosis and meiosis

Y

0

0

Nuclear structure

V

143

1.8

Defense mechanisms

T

528

6.5

Signal transduction mechanisms

M

240

3.0

Cell wall/membrane biogenesis

N

80

1.0

Cell motility

Z

1

0

Cytoskeleton

W

0

0

Extracellular structures

U

52

0.6

Intracellular trafficking and secretion

O

156

1.9

Posttranslational modification, protein turnover, chaperones

C

360

4.4

Energy production and conversion

G

579

7.1

Carbohydrate transport and metabolism

E

524

6.4

Amino acid transport and metabolism

F

91

1.1

Nucleotide transport and metabolism

H

199

2.4

Coenzyme transport and metabolism

I

286

3.5

Lipid transport and metabolism

P

326

4.0

Inorganic ion transport and metabolism

Q

236

2.9

Secondary metabolites biosynthesis, transport and catabolism

R

976

12.0

General function prediction only

S

387

4.8

Function unknown

-

2,954

36.4

Not in COGs