From: The genetic organisation of prokaryotic two-component system signalling pathways
 |  | Genes per Focus | ||||
---|---|---|---|---|---|---|
 | # Genes | 1 | 2 | 3 | 4 | Total |
Domains | 1 | 13880 | - | - | - | 13880 |
per | 2 | 2586 | 21668 | - | - | 24254 |
focus | 3 | 700 | 1072 | 867 | - | 2639 |
 | 4 | 192 | 646 | 489 | 324 | 1651 |
 | 5+ | 20 | 314 | 408 | 260 | 1002 |
 | Total | 17378 | 23700 | 1764 | 584 | 43426 |