| Subfamily | Family | Superfamily | Architecture | Class | Structure |
|---|---|---|---|---|---|
| Intron_gpI-IB1 | Intron_gpI-IB | Intron_gpI | Intron_gpI-like | structured_complex | |
| Intron_gpI-IB2 | Intron_gpI-IB | Intron_gpI | Intron_gpI-like | structured_complex | |
| Intron_gpI-IB3 | Intron_gpI-IB | Intron_gpI | Intron_gpI-like | structured_complex | |
| Intron_gpI-IB4 | Intron_gpI-IB | Intron_gpI | Intron_gpI-like | structured_complex |