Table 8.
COG FUNCTIONAL CATEGORIES
| Code | COGs | Domains | Description | Pathways and functional systems |
| Information storage and processing | ||||
| J | 217 | 6449 | Translation, ribosomal structure and biogenesis | 4 |
| K | 132 | 5438 | Transcription | 3 |
| L | 184 | 5337 | DNA replication, recombination and repair | 2 |
| Cellular processes | ||||
| D | 32 | 842 | Cell division and chromosome partitioning | - |
| O | 110 | 3165 | Posttranslational modification, protein turnover, chaperones | - |
| M | 155 | 4079 | Cell envelope biogenesis, outer membrane | 1 |
| N | 133 | 3110 | Cell motility and secretion | 2 |
| P | 160 | 5112 | Inorganic ion transport and metabolism | 1 |
| T | 97 | 3627 | Signal transduction mechanisms | - |
| Metabolism | ||||
| C | 224 | 5594 | Energy production and conversion | 7 |
| G | 171 | 5262 | Carbohydrate transport and metabolism | 4 |
| E | 233 | 8383 | Amino acid transport and metabolism | 10 |
| F | 85 | 2364 | Nucleotide transport and metabolism | 5 |
| H | 154 | 4057 | Coenzyme metabolism | 11 |
| I | 75 | 2609 | Lipid metabolism | 2 |
| Q | 62 | 2754 | Secondary metabolites biosynthesis, transport and catabolism | - |
| Poorly characterized | ||||
| R | 449 | 11948 | General function prediction only | - |
| S | 750 | 6416 | Function unknown | - |
Classification for COG's Database of Protein Functional Category.