COGs legend
- A：RNA processing and modification
- B：Chromatin structure and dynamics
- C：Energy production and conversion
- D：Cell cycle control, cell division, chromosome partitioning
- E：Amino acid transport and metabolism
- F：Nucleotide transport and metabolism
- G：Carbohydrate transport and metabolism
- H：Coenzyme transport and metabolism
- I：Lipid transport and metabolism
- J：Translation, ribosomal structure and biogenesis
- K：Transcription
- L：Replication, recombination and repair
- M：Cell wall/membrane/envelope biogenesis
- N：Cell motility
- O：Posttranslational modification, protein turnover, chaperones
- P：Inorganic ion transport and metabolism
- Q：Secondary metabolites biosynthesis, transport and catabolism
- S：Function unknown
- T：Signal transduction mechanisms
- U：Intracellular trafficking, secretion, and vesicular transport
- V：Defense mechanisms
- _：Unclassified