Figure 1
Results of the search for (a) seven-residue α-helices and (b) common tripeptides using the density obtained by SHELXE density modification for the 2.75 Å MAD test data for GerE (Ducros et al., 2001; PDB code 1fse). Δ is defined as the average distance to the true atomic site; distances greater than 2.5 Å were replaced by 2.5 Å before calculating the average; f(ρ′) is defined in the text. |