| 4P22 | e4p22A2 | 1.1.7 | cradle loop barrel | RIFT-related | Alanine racemase-C | Flavokinase |
| e4p22B2 | 1.1.7 | cradle loop barrel | RIFT-related | Alanine racemase-C | Flavokinase |
| e4p22A1 | 2003.1.9 | Rossmann-like | Rossmann-related | Activating enzymes of the ubiquitin-like proteins | ThiF |
| e4p22A3 | 2003.1.9 | Rossmann-like | Rossmann-related | Activating enzymes of the ubiquitin-like proteins | ThiF |
| e4p22B1 | 2003.1.9 | Rossmann-like | Rossmann-related | Activating enzymes of the ubiquitin-like proteins | ThiF |
| e4p22B3 | 2003.1.9 | Rossmann-like | Rossmann-related | Activating enzymes of the ubiquitin-like proteins | ThiF |
| 6DC6 | e6dc6A4 | 1.1.7 | cradle loop barrel | RIFT-related | Alanine racemase-C | Flavokinase |
| e6dc6C2 | 1.1.7 | cradle loop barrel | RIFT-related | Alanine racemase-C | Flavokinase |
| e6dc6A2 | 2003.1.9 | Rossmann-like | Rossmann-related | Activating enzymes of the ubiquitin-like proteins | ThiF |
| e6dc6A3 | 2003.1.9 | Rossmann-like | Rossmann-related | Activating enzymes of the ubiquitin-like proteins | ThiF |
| e6dc6C1 | 2003.1.9 | Rossmann-like | Rossmann-related | Activating enzymes of the ubiquitin-like proteins | ThiF |
| e6dc6C4 | 2003.1.9 | Rossmann-like | Rossmann-related | Activating enzymes of the ubiquitin-like proteins | ThiF |
| e6dc6A1 | 221.7.1 | beta-Grasp | E2-binding domain of E1 | E2-binding domain of E1 | E2_bind |
| e6dc6C3 | 221.7.1 | beta-Grasp | E2-binding domain of E1 | E2-binding domain of E1 | E2_bind |