Table 1.
Structural data and models available for SMR transporters Gdx-Clo and EmrE
| Protein | Substrate | Method (max. resolution) | PDB | Reference |
|---|---|---|---|---|
| EmrE | Tetraphenylphosphonium (TPP+) | Electron microscopy with 2D crystals (7.5 Å) | Data: EMD-1087 Model: 2I68 |
Data (12) Model (58) |
| Gdx-Clo | Gdm+ | Crystallography (3.50 Å) | 6WK5 | (4) |
| Gdx-Clo | PhenylGdm+ | Crystallography (2.53 Å) | 6WK8 | (4) |
| Gdx-Clo | OctylGdm+ | Crystallography (2.32 Å) | 6WK9 | (4) |
| Gdx-Clo | None (pH 5.0) | Crystallography (2.32 Å) | 7SZT | (3) |
| aEmrE3 | None (pH 5.2) | Crystallography (2.85 Å) | 7MH6 | (3) |
| aEmrE3 | Methyl viologen | Crystallography (3.13 Å) | 7MGX | (3) |
| aEmrE3 | TPP+ | Crystallography (3.36 Å) | 7SV9 | (3) |
| aEmrE3 | Methyltriphenylphosphonium | Crystallography (3.22 Å) | 7SSU | (3) |
| aEmrE3 | Benzyltrimethylammonium | Crystallography (3.91 Å) | 7T00 | (3) |
| aEmrE3 | Harmane | Crystallography (3.91 Å) | 7SVX | (3) |
| bEmrE S64V | Tetra(4-fluorophenyl) phosphonium/pH 5.8 | NMR | 7JK8 | (80) |
| bEmrE S64V | Tetra(4-fluorophenyl) phosphonium/pH 8.0 | NMR | 7SFQ | (81) |