Intra- and Inter-molecular edge features
| Feature | Size | Intra | Inter | Description |
|---|---|---|---|---|
| Length/distance | 1 | X | X | Float |
| Belongs to an aromatic cycle | 1 | X | - | Boolean |
| Belongs to a ring | 1 | X | - | Boolean |
| Type | 3 | X | - | One-hot (simple, double, or triple) |
| Is a hydrogen bond | 1 | - | X | Boolean |
| Is a salt bridge | 1 | - | X | Boolean |
| Is a hydrophobic contact | 1 | - | X | Boolean |
| Has π-stacking | 1 | - | X | Boolean |
| Has π-cation | 1 | - | X | Boolean |
π-stacking, and π-cation are only available for inter-molecular edges whose terminal atom from the protein side belongs to a ring. X: applicable; -: not applicable