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. 2015 Jan 21;10:6. doi: 10.1186/1944-3277-10-6

Table 4.

Number of genes associated with the 25 general COG functional categories

Code Value % of total a Description
J 1 1.16 Translation
A 0 0 RNA processing and modification
K 1 1.16 Transcription
L 3 3.49 Replication, recombination and repair
B 0 0 Chromatin structure and dynamics
D 1 1.16 Cell cycle control, mitosis and meiosis
Y 0 0 Nuclear structure
V 0 0 Defense mechanisms
T 0 0 Signal transduction mechanisms
M 0 0 Cell wall/membrane biogenesis
N 0 0 Cell motility
Z 0 0 Cytoskeleton
W 0 0 Extracellular structures
U 0 0 Intracellular trafficking and secretion
O 1 1.16 Posttranslational modification, protein turnover, chaperones
C 0 0 Energy production and conversion
G 0 0 Carbohydrate transport and metabolism
E 0 0 Amino acid transport and metabolism
F 2 2.33 Nucleotide transport and metabolism
H 1 1.16 Coenzyme transport and metabolism
I 0 0 Lipid transport and metabolism
P 0 0 Inorganic ion transport and metabolism
Q 0 0 Secondary metabolites biosynthesis, transport and catabolism
R 4 4.65 General function prediction only
S 2 2.33 Function unknown
- 72 83.72 Not in COGs

aThe total is based on the total number of protein–coding genes in the annotated genome.