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Figure 4
Fitting of Fo − Fc difference density for tris-(hydroxylmethyl)-methane from PDB entry 1m6z (A. Noergaard, P. Harris, S. Larsen & H. E. M. Christensen, unpublished) at a resolution of 1.4 Å. (a) Density fitted by the same ligand from a different PDB entry (1s18 ; Dai et al., 2004 ![]() |