| P0ACT4 | DB09093 | 2fj1 | CTC | A | 222 | e2fj1A1 | HTH | HTH | Three-helical HTH | TetR_N |
| P0ACT4 | DB09093 | 2fj1 | CTC | A | 222 | e2fj1A2 | Tetracyclin repressor-like, C-terminal domain | Tetracyclin repressor-like, C-terminal domain | Tetracyclin repressor-like, C-terminal domain | TetR_C_1 |
| P0ACT4 | DB09093 | 2tct | CTC | A | 222 | e2tctA1 | HTH | HTH | Three-helical HTH | TetR_N |
| P0ACT4 | DB09093 | 2tct | CTC | A | 222 | e2tctA2 | Tetracyclin repressor-like, C-terminal domain | Tetracyclin repressor-like, C-terminal domain | Tetracyclin repressor-like, C-terminal domain | TetR_C_1 |
| P0ACT4 | DB09093 | 4v2g | CTC | B | 222 | e4v2gA2 | Tetracyclin repressor-like, C-terminal domain | Tetracyclin repressor-like, C-terminal domain | Tetracyclin repressor-like, C-terminal domain | TetR_C_1 |
| P0ACT4 | DB09093 | 4v2g | CTC | B | 222 | e4v2gB1 | HTH | HTH | Three-helical HTH | TetR_N |
| P0ACT4 | DB09093 | 4v2g | CTC | B | 222 | e4v2gB2 | Tetracyclin repressor-like, C-terminal domain | Tetracyclin repressor-like, C-terminal domain | Tetracyclin repressor-like, C-terminal domain | TetR_C_1 |
| P0ACT4 | DB09093 | 6qjw | CTC | A | 301 | e6qjwA1 | HTH | HTH | Three-helical HTH | TetR_N |
| P0ACT4 | DB09093 | 6qjw | CTC | A | 301 | e6qjwA2 | Tetracyclin repressor-like, C-terminal domain | Tetracyclin repressor-like, C-terminal domain | Tetracyclin repressor-like, C-terminal domain | TetR_C_1 |