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Conditions used for PEF(S)–Hfq crystallization trials.
| Method | Vapour diffusion |
| Plate type | Sitting drop |
| Temperature (K) | 293 |
| Protein concentration (mg ml−1) | 10 |
| Buffer composition of protein solution | 20 mM HEPES, 0.5 mM EGTA, 0.5 mM TCEP pH 7.6 |
| Composition of reservoir solution | 0.1 M MMT, 25% PEG 1500 pH 9.0 |
| Volume and ratio of drop | 200 nl, 1:1 |
| Volume of reservoir (µl) | 50 |
