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. 2013 May 25;8(2):228–238. doi: 10.4056/sigs.3617113

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

Code    Value     % age       Description
J    164     5.5       Translation, ribosomal structure and biogenesis
A    0     0.0       RNA processing and modification
K    169     5.7       Transcription
L    158     5.3       Replication, recombination and repair
B    2     0.1       Chromatin structure and dynamics
D    34     1.2       Cell cycle control, cell division, chromosome partitioning
Y    0     0.0       Nuclear structure
V    49     1.7       Defense mechanisms
T    266     9.0       Signal transduction mechanisms
M    222     7.5       Cell wall/membrane/envelope biogenesis
N    80     2.7       Cell motility
Z    0     0.0       Cytoskeleton
W    0     0.0       Extracellular structures
U    70     2.4       Intracellular trafficking, secretion, and vesicular transport
O    114     3.9       Posttranslational modification, protein turnover, chaperones
C    158     5.3       Energy production and conversion
G    123     4.2       Carbohydrate transport and metabolism
E    154     5.2       Amino acid transport and metabolism
F    73     2.5       Nucleotide transport and metabolism
H    117     4.0       Coenzyme transport and metabolism
I    146     4.9       Lipid transport and metabolism
P    121     4.1       Inorganic ion transport and metabolism
Q    55     1.9       Secondary metabolites biosynthesis, transport and catabolism
R    405     13.7       General function prediction only
S    279     9.4       Function unknown
-    1,516     36.0       Not in COGs