Figure 1. Negative stain EM of Fab.
(A) An EM image of negatively stained Fab J16. The shape of Fab can be easily recognized in the raw images. (B) Representative 2D class averages showing two typical views of negatively stained Fab. (C) Two different views of a typical Fab atomic structure (pdb code: 1M71) in ribbon diagram corresponding to the class averages shown in B. See also Figure S1.