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Figure 3
Ligand electron density in the PfOMPDC active site after re-refinement of the deposited structure factors (PDB entry 2za1). (a) A simulated-annealing OMIT map showing the Fo − Fc difference density map in green for positive and red for negative difference density (both contoured at 3.0 r.m.s.d.). (b) Modeling UMP into this unbiased ligand density, showing the 2Fo − Fc map in gray (1.5 r.m.s.d.) and difference density in green and red (±3.0 r.m.s.d.). (c) Modeling OMP into ligand electron density, with the difference density Fo − Fc map in green and red (±3.0 r.m.s.d.).

Journal logoSTRUCTURAL BIOLOGY
COMMUNICATIONS
ISSN: 2053-230X
Volume 74| Part 10| October 2018| Pages 664-668
https://doi.org/10.1107/S2053230X18010610
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