_Entity_bond.Atom_ID_1
| Description | Pointer to '_Chem_comp_atom.Atom_ID' |
| Details: | |
| Parent saveframe | entity |
| Data type | atcode |
| DB table | Entity_bond |
| DB column | Atom_ID_1 |
| DB type | CHAR(12) |
| NULL allowed | no (mandatory) |
| ADIT-NMR deposition system prompt | Atom 1 atom ID |