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Table 4 Number of genes associated with general COG functional categories

From: Genome sequences of two closely related strains of Escherichia coli K-12 GM4792

Code Valueb % agea,b Valuec % agea,c Description
J 258 6.35 259 6.41 Translation, ribosomal structure and biogenesis
A 2 0.05 2 0.05 RNA processing and modification
K 335 8.25 337 8.34 Transcription
L 160 3.94 160 3.96 Replication, recombination and repair
B 0 0.00 0 0.00 Chromatin structure and dynamics
D 50 1.23 50 1.24 Cell cycle control, cell division, chromosome partitioning
Y 0 0.00 0 0.00 Nuclear structure
V 107 2.63 107 2.65 Defense mechanisms
T 251 6.18 250 6.18 Signal transduction mechanisms
M 286 7.04 285 7.05 Cell wall/membrane/envelope biogenesis
N 116 2.86 114 2.82 Cell motility
Z 0 0.00 0 0.00 Cytoskeleton
W 38 0.94 36 0.89 Extracellular structures
U 63 1.55 61 1.51 Intracellular trafficking, secretion, and vesicular transport
O 171 4.21 170 4.20 Posttranslational modification, protein turnover, chaperones
X 31 0.76 31 0.77 Mobilome: prophages, transposons
C 317 7.81 316 7.82 Energy production and conversion
G 437 10.76 438 10.83 Carbohydrate transport and metabolism
E 397 9.78 397 9.82 Amino acid transport and metabolism
F 108 2.66 108 2.67 Nucleotide transport and metabolism
H 189 4.65 188 4.65 Coenzyme transport and metabolism
I 133 3.28 133 3.29 Lipid transport and metabolism
P 263 6.48 260 6.43 Inorganic ion transport and metabolism
Q 77 1.90 77 1.90 Secondary metabolites biosynthesis, transport and catabolism
R 319 7.86 321 7.94 General function prediction only
S 216 5.32 210 5.19 Function unknown
- 469 11.55 463 11.45 Not in COGs
  1. aThe total is based on the total number of protein coding genes in the genome
  2. bThe genome statistics for GM4792 Lac+
  3. cThe genome statistics for GM4792 Lac-