Figure 2.
The Dimerization Domain Is Not Necessary for the Closure of Talin
(A) Negative-stain EM image of talin-ΔDD lacking the dimerization domain at 75 mM KCl, and 2D averages of the particles (right), showing a morphology similar to that of talin-FL.
(B) Size-exclusion chromatography coupled with multi-angle light-scattering profile of talin-FL and talin-ΔDD at 75 mM KCl, showing molecular weights corresponding to monomers. LS, light scattering, normalized; UV, absorbance.
(C) Centrifugation profiles of talin-ΔDD and talin-FL using the GraFix method. Talin-FL has an extra band in the fraction at higher sucrose density (open arrowhead). Black triangles depict the gradient of sucrose and glutaraldehyde concentrations.