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Lysozyme (left) and thaumatin (right) crystals and electron densities. The single lysozyme crystal (15 × 7 × 7 µm) was used for the experiment depicted. The thaumatin microcrystals were spread over the MiTeGen mount. Refined models and electron-density maps correspond to data sets from microcrystals with the mini-beam (above) and large crystals with a large beam (below). |2F o − F c| electron densities are contoured at the r.m.s. density level.
