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. Author manuscript; available in PMC: 2012 Feb 9.
Published in final edited form as: Structure. 2011 Feb 9;19(2):155–161. doi: 10.1016/j.str.2010.12.007

Figure 3. Cross-crystal averaging in the ACE2 region improves electron density map in the NL63 coronavirus receptor-binding domain (nlRBD) region in the nlRBD-ACE2 complex crystal.

Figure 3

(A) Part of the electron density map in the nlRBD region after rigid-body refinement and before averaging. (B) The same region after NCS averaging. (C) The same region after cross-crystal and NCS averaging. (D) Changes of ρ/σ in the nlRBD region during different averaging processes. (E) Changes of the map correlation coefficients in the nlRBD region during different averaging processes.