Structure reconstruction from contact maps with different types of random errors. The average RMSD (Avg RMSD) value of the native to the corresponding protein structures reconstructed from blurred contact maps is plotted as a function of the percentage of random errors in the contact maps (Err %). Contact maps are blurred with three types of random errors: errors on both contacts and non contacts (Err), errors on contacts (Err-1) and errors on non-contacts (Err-0). For clarity reasons, error bars representing standard deviation are plotted only for Err-1 and for Err-0 (with only the upper bar). Each dot in the plot is the average value over 1716 proteins.