Three dimensional structures of GroEL resulting from particles picked using DoG picker (A-D, blue) and template correlation (E-H, pink). For both GroEL reconstructions there are top (A and E), intermediate (B and F) and side (C and G) views of the final structure. In addition, Euler angle distributions (D and H) display a histogram of the number of particles in a certain projection of the particle. The number of particles is represented by color, with green representing a high population and red a low population. (J) The even-odd FSC and Rmeasure resolution plots for the GroEL structures from DoG picker and template correlation. DoG Picker resulted in maps with resolutions of FSC½ at 7.75Å and Rmeasure at 8.40Å. Template correlation resulted in resolutions of FSC½ at 7.16Å and Rmeasure at 8.45Å.