| Alphabet | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| Full list |
| Plasmid list |
| Chromosome list |
| Only T4SS-containing replicons are listed |
| # | Replicon | Taxonomy ID | T4SS number |
Number of relevant effectors * |
| 1 | Taylorella equigenitalis MCE9 chromosome | 937774 | 1 | 0 |
| 2 | Tolumonas auensis DSM 9187 chromosome | 595494 | 1 | 0 |
| 3 | Thiomonas intermedia K12 chromosome | 75379 | 1 | 0 |
| 4 | Thioalkalivibrio sp. K90mix plasmid pTK9001 | 396595 | 1 | 0 |
| 5 | Thauera sp. MZ1T chromosome | 85643 | 1 | 0 |
| 6 | Thioalkalivibrio sulfidophilus HL-EbGr7 chromosome | 396588 | 2 | 0 | Total | 0  , 0  , 0  | 7 | 0 |
| * Number of effecters that can be delivered by T4SS(s) encoded by the replicon. In some cases, effectors are not encoded by the same replicon that coding for T4SS. | ||||