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Clusters three-dimensional spatial distribution in the ligand-binding site of the regulatory domain of the QS LuxRs.
| Roof | Distal Wall | Floor | Proximal Wall | |
|---|---|---|---|---|
| Structural determinants | Two anti-parallel α-helices | Two perpendicular α-helices fragments | Four anti-parallel β-strands | Loops |
| Cluster 1 | W57, Y61 | D70, P71 | W85, G113 | - |
| Cluster 2 | F101, A105 | V72, V73 | T129 | I110 |
| Cluster 3 | Q58, F62 | - | A49 | Y53 |
