Proteins that do not form complexes (35 proteins) are shown on the left. Proteins that are found in complexes (140 proteins) are shown on the right. Color indicates COG functional category (1 sector per protein). Only the most representative complexes are shown. The key for COG functional categories letter code: C Energy production and conversion. D Cell cycle control, cell division, chromosome partitioning. F Nucleotide transport and metabolism. G Carbohydrate transport and metabolism. H Coenzyme transport and metabolism. J Translation, ribosomal structure and biogenesis. K Transcription. L Replication, recombination and repair. O Posttranslational modification, protein turnover, chaperones. P Inorganic ion transport and metabolism. R General function prediction only. U Intracellular trafficking, secretion, and vesicular transport.