Figure 4 - full size

Figure 4.
Figure 4. (a) Experimental X-ray scattering pattern from filamin C Ig-like domains 23–24 dimer. Scattering from a typical ab initio model computed by DAMMIN (continuous line, red) and from the three-dimensional model with added linker parts between domains 23 and 24 obtained by BUNCH^8 (broken line, blue). The plot displays the logarithm of the scattering intensity as a function of momentum transfer s = 4π sin(θ)/λ, where 2θ is the scattering angle and λ = 0.15 nm is the X-ray wavelength. The distance distribution function is displayed in the inner window on top right. (b) Ab initio and rigid models of the filamin C Ig-like domains 23–24 dimer. Ab initio models of filamin C Ig-like domain 23–24 dimer superimposed with the rigid body models. The ab initio models obtained by DAMMIN are displayed as gray semitransparent spheres, the models obtained by BUNCH as C^α traces (the two monomers are coloured red and blue, the linkers are green). Top panel, models without symmetry; bottom panel, models with P2 symmetry axis (vertical axis on the bottom left). The right view is rotated clockwise around the horizontal axis. The bar represents the length of 50 Å and is shown at the top left.