Figure 3.

Solution structures of α-catenin monomer. (A) A SAXS curve computed from structural models generated from SASSIE Monte Carlo simulation (green and blue lines) with best fit to the monomer fraction of experimental SEC-SAXS data (black square) is shown, χ² < 0.98. (B) A χ² vs. R_g plot of the fits of SASSIE generated models to the monomer SEC-SAXS data is shown. (C) Two representative structural models of open and closed α-catenin monomer with minimized χ² fit to the experimental SAXS data are shown.