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. 2011 Apr 25;4(2):163–172. doi: 10.4056/sigs.1633949

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

Code     value     %age       Description
J     160     6.0       Translation, ribosomal structure and biogenesis
A     0     0.0       RNA processing and modification
K     188     7.1       Transcription
L     109     4.1       Replication, recombination and repair
B     2     0.1       Chromatin structure and dynamics
D     29     1.1       Cell cycle control, cell division, chromosome partitioning
Y     0     0.0       Nuclear structure
V     45     1.7       Defense mechanisms
T     195     7.3       Signal transduction mechanisms
M     137     5.2       Cell wall/membrane/envelope biogenesis
N     15     0.6       Cell motility
Z     1     0.0       Cytoskeleton
W     0     0.0       Extracellular structures
U     43     1.6       Intracellular trafficking, secretion, and vesicular transport
O     113     4.3       Posttranslational modification, protein turnover, chaperones
C     125     4.7       Energy production and conversion
G     205     7.7       Carbohydrate transport and metabolism
E     237     8.9       Amino acid transport and metabolism
F     77     2.9       Nucleotide transport and metabolism
H     119     4.5       Coenzyme transport and metabolism
I     105     4.0       Lipid transport and metabolism
P     121     4.6       Inorganic ion transport and metabolism
Q     60     2.3       Secondary metabolites biosynthesis, transport and catabolism
R     334     12.6       General function prediction only
S     238     9.0       Function unknown
-     955     28.4       Not in COGs