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. 2010 Oct 27;3(2):153–162. doi: 10.4056/sigs.1153107

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

Code    Value   %age    Description
J    139   5.6    Translation, ribosomal structure and biogenesis
A    0   0.0    RNA processing and modification
K    158   6.4    Transcription
L    110   4.5    Replication, recombination and repair
B    1   0.0    Chromatin structure and dynamics
D    18   0.7    Cell cycle control, cell division, chromosome partitioning
Y    0   0.0    Nuclear structure
V    56   2.3    Defense mechanisms
T    106   4.3    Signal transduction mechanisms
M    131   5.3    Cell wall/membrane/envelope biogenesis
N    2   0.1    Cell motility
Z    0   0.0    Cytoskeleton
W    0   0.0    Extracellular structures
U    35   1.4    Intracellular trafficking and secretion, and vesicular transport
O    105   4.3    Posttranslational modification, protein turnover, chaperones
C    160   6.5    Energy production and conversion
G    325   13.2    Carbohydrate transport and metabolism
E    206   8.4    Amino acid transport and metabolism
F    60   2.4    Nucleotide transport and metabolism
H    128   5.2    Coenzyme transport and metabolism
I    67   2.7    Lipid transport and metabolism
P    134   5.4    Inorganic ion transport and metabolism
Q    44   1.8    Secondary metabolites biosynthesis, transport and catabolism
R    316   12.8    General function prediction only
S    162   6.6    Function unknown
-    707   24.1    Not in COGs