B. Human DCX schematic, sequence alignment of the DC domains from human isoform 2 (Uniprot ID: O43602-2) with indication of secondary structures and 3D structure alignment, in which selected amino acid positions are indicated using single-letter codes. Sequence identity is 24.1 % by Clustal 2.1 (Larkin et al., 2007). H, α-helix; S, β-strand. 