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Figure 4
Structure of photoactive yellow protein (PDB entry 1t1c). The 2Fo − Fc map (blue mesh) is shown at the 1.5σ level. (a) Despite the resolution of 1.6 Å, there is no solvent in the protein core and at the protein surface even in the best areas of the map. (b) The less well ordered part of the map shows more clearly that the structure was modeled as two superposed molecules with occupancies of 0.71 and 0.29.

IUCrJ
Volume 11| Part 6| November 2024| Pages 966-976
ISSN: 2052-2525
https://doi.org/10.1107/S2052252524009928