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. 2011 Oct 1;5(1):144–153. doi: 10.4056/sigs.2265047

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

Code     value      %age       Description
J     154      3.4       Translation, ribosomal structure and biogenesis
A     20      0.4       RNA processing and modification
K     398      8.7       Transcription
L     305      6.7       Replication, recombination and repair
B     1      0.0       Chromatin structure and dynamics
D     34      0.7       Cell cycle control, cell division, chromosome partitioning
Y     0      0.0       Nuclear structure
V     46      1.0       Defense mechanisms
T     193      4.2       Signal transduction mechanisms
M     176      3.9       Cell wall/membrane/envelope biogenesis
N     10      0.2       Cell motility
Z     1      0.0       Cytoskeleton
W     0      0.0       Extracellular structures
U     38      0.8       Intracellular trafficking, secretion and vesicular transport
O     132      2.9       Posttranslational modification, protein turnover, chaperones
C     303      6.6       Energy production and conversion
G     198      4.3       Carbohydrate transport and metabolism
E     320      7.0       Amino acid transport and metabolism
F     81      1.8       Nucleotide transport and metabolism
H     170      3.7       Coenzyme transport and metabolism
I     412      9.0       Lipid transport and metabolism
P     216      4.7       Inorganic ion transport and metabolism
Q     362      7.9       Secondary metabolites biosynthesis, transport and catabolism
R     636      14.0       General function prediction only
S     351      7.7       Function unknown
-     1,396      25.7       Not in COGs