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. 2009 Sep 24;1(2):197–203. doi: 10.4056/sigs.35575

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

Code value % of total COG category
E 130 7.4 Amino acid transport and metabolism
G 54 3.1 Carbohydrate transport and metabolism
D 10 0.6 Cell cycle control, cell division, chromosome partitioning
N 5 0.3 Cell motility
M 35 2.0 Cell wall/membrane/envelope biogenesis
B 2 0.1 Chromatin structure and dynamics
H 129 7.3 Coenzyme transport and metabolism
Z 0 0.0 Cytoskeleton
V 13 0.7 Defense mechanisms
C 134 7.6 Energy production and conversion
W 0 0.0 Extracellular structures
S 172 9.7 Function unknown
R 219 12.4 General function prediction only
P 95 5.4 Inorganic ion transport and metabolism
U 17 1.0 Intracellular trafficking, secretion, and vesicular transport
I 24 1.4 Lipid transport and metabolism
Y 0 0.0 Nuclear structure
F 49 2.8 Nucleotide transport and metabolism
O 57 3.2 Posttranslational modification, protein turnover, chaperones
A 0 0.0 RNA processing and modification
L 65 3.7 Replication, recombination and repair
Q 8 0.5 Secondary metabolites biosynthesis, transport and catabolism
T 30 1.7 Signal transduction mechanisms
K 77 4.4 Transcription
J 147 8.3 Translation, ribosomal structure and biogenesis
- 293 16.6 Not in COGs