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Distances between different binding sites in the dopamine D2 receptor homodimer model (in Ångstroms)
| Distance | D2 inactive | D2 active [21] |
|---|---|---|
| Orthosteric-orthosteric in different protomers through the membrane region | ~38 | ~34 |
| Orthosteric-orthosteric in different protomers without crossing a membrane region | ~60-65 | ~50-60 |
| Orthosteric-allosteric in one protomer | ~18 | ~18 |
| Orthosteric-allosteric in different protomers across the homodimer | ~40-45 | ~30-40 |
