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. 2013 Feb 25;7(3):440–448. doi: 10.4056/sigs.3486982

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

Code     Value     %age      Description
J     178     4.58      Translation, ribosomal structure and biogenesis
A     0     0.00      RNA processing and modification
K     274     7.05      Transcription
L     162     4.17      Replication, recombination and repair
B     2     0.05      Chromatin structure and dynamics
D     27     0.69      Cell cycle control, cell division, chromosome partitioning
Y     -     -      Nuclear structure
V     39     1.00      Defense mechanisms
T     175     4.50      Signal transduction mechanisms
M     205     5.27      Cell wall/membrane/envelope biogenesis
N     60     1.54      Cell motility
Z     0     0.00      Cytoskeleton
W     -     -      Extracellular structures
U     66     1.70      Intracellular trafficking, secretion, and vesicular transport
O     135     3.47      Posttranslational modification, protein turnover, chaperones
C     226     5.81      Energy production and conversion
G     325     8.36      Carbohydrate transport and metabolism
E     405     10.41      Amino acid transport and metabolism
F     80     2.06      Nucleotide transport and metabolism
H     157     4.04      Coenzyme transport and metabolism
I     188     4.83      Lipid transport and metabolism
P     178     4.58      Inorganic ion transport and metabolism
Q     130     3.34      Secondary metabolites biosynthesis, transport and catabolism
R     524     13.47      General function prediction only
S     353     9.08      Function unknown
-     773     18.00      Not in COGs