Figure 1. Figure 1. Electron density with MAD phases improved by solvent modification. The stereo FOM-weighted F[o] maps are contoured at 1.4 . a, 2.8 Å map of CesT at the domain-swap interface. b, 1.9 Å map of SigE at the dimeric interface.
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a, 2.8 Å map of CesT at the domain-swap interface. b, 1.9 Å map
of SigE at the dimeric interface.