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. 2011 Feb 20;4(1):63–71. doi: 10.4056/sigs.1533840

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

Code     value     %age      Description
J     138     4.7      Translation, ribosomal structure and biogenesis
A     1     0.0      RNA processing and modification
K     166     5.7      Transcription
L     165     5.7      Replication, recombination and repair
B     1     0.0      Chromatin structure and dynamics
D     24     0.8      Cell cycle control, cell division, chromosome partitioning
Y     0     0.0      Nuclear structure
V     54     1.9      Defense mechanisms
T     187     6.5      Signal transduction mechanisms
M     196     6.8      Cell wall/membrane/envelope biogenesis
N     77     2.7      Cell motility
Z     0     0.0      Cytoskeleton
W     0     0.0      Extracellular structures
U     128     4.4      Intracellular trafficking and secretion, and vesicular transport
O     132     4.5      Posttranslational modification, protein turnover, chaperones
C     157     5.4      Energy production and conversion
G     176     6.1      Carbohydrate transport and metabolism
E     197     6.8      Amino acid transport and metabolism
F     57     2.0      Nucleotide transport and metabolism
H     152     5.3      Coenzyme transport and metabolism
I     83     2.9      Lipid transport and metabolism
P     110     3.8      Inorganic ion transport and metabolism
Q     70     2.4      Secondary metabolites biosynthesis, transport and catabolism
R     435     15.0      General function prediction only
S     190     6.6      Function unknown
-     1,415     37.0      Not in COGs