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

From: Complete genome sequence of Nitrosomonas sp. Is79, an ammonia oxidizing bacterium adapted to low ammonium concentrations

Code

Value

%age

Description

J

167

6.34

Translation, ribosomal structure and biogenesis

A

7

0.27

RNA processing and modification

K

128

4.86

Transcription

L

270

10.24

Replication, recombination and repair

B

1

0.04

Chromatin structure and dynamics

D

39

1.48

Cell cycle control, cell division, chromosome partitioning

Y

0

0.00

Nuclear structure

V

49

1.86

Defense mechanisms

T

211

8.00

Signal transduction mechanisms

M

139

5.27

Cell wall/membrane/envelope biogenesis

N

94

3.57

Cell motility

Z

0

0.00

Cytoskeleton

W

0

0.00

Extracellular structures

U

87

3.30

Intracellular trafficking, secretion, and vesicular transport

O

132

5.01

Posttranslational modification, protein turnover, chaperones

C

146

5.54

Energy production and conversion

G

93

3.53

Carbohydrate transport and metabolism

E

152

5.77

Amino acid transport and metabolism

F

56

2.12

Nucleotide transport and metabolism

H

115

4.36

Coenzyme transport and metabolism

I

79

3.00

Lipid transport and metabolism

P

122

4.63

Inorganic ion transport and metabolism

Q

57

2.16

Secondary metabolites biosynthesis, transport and catabolism

R

259

9.83

General function prediction only

S

233

8.84

Function unknown

-

1214

33.75

Not in COG′s