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. 2012 Mar 5;6(1):74–83. doi: 10.4056/sigs.2395367

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

Code       value      %age     Description
J       155      8.3     Translation, ribosomal structure and biogenesis
A       1      0.1     RNA processing and modification
K       68      3.6     Transcription
L       101      5.4     Replication, recombination and repair
B       2      0.1     Chromatin structure and dynamics
D       19      1.0     Cell cycle control, cell division, chromosome partitioning
Y       0      0.0     Nuclear structure
V       18      1.0     Defense mechanisms
T       54      2.9     Signal transduction mechanisms
M       153      8.2     Cell wall/membrane biogenesis
N       9      0.5     Cell motility
Z       0      0.0     Cytoskeleton
W       0      0.0     Extracellular structures
U       44      2.3     Intracellular trafficking and secretion, and vesicular transport
O       99      5.3     Posttranslational modification, protein turnover, chaperones
C       156      8.3     Energy production and conversion
G       77      4.1     Carbohydrate transport and metabolism
E       161      8.6     Amino acid transport and metabolism
F       47      2.5     Nucleotide transport and metabolism
H       111      5.9     Coenzyme transport and metabolism
I       88      4.7     Lipid transport and metabolism
P       86      4.6     Inorganic ion transport and metabolism
Q       46      2.5     Secondary metabolites biosynthesis, transport and catabolism
R       208      11.1     General function prediction only
S       174      9.3     Function unknown
-       417      19.5     Not in COGs