Isosurface overviews of single DC domains bound to MT lattices together with detailed presentations of all DC domain residues interfacing with MT (4 Å distance), shown in circles representing individual tubulin subunits or binding site of the N-terminal flanking sequence of WT's NDC. Only DC residues with at least one atom found within the 4 Å contact zone are fully represented together with their respective densities (wireframe). The density is not masked around the selected residues and occasionally includes adjacent residues that are not displayed in the model. The contact residues are viewed from MT side, i.e. flipped horizontally with respect to the isosurface overviews. α-Tubulin, light violet or light grey; β-tubulin, dark violet or dark grey; CDC, yellow; NDC, blue; oxygen atom, red; nitrogen atom, navy blue. 