Figure 1.
Cadherin structures. (A) Crystal structure of the extracellular region of Xenopus C-Cadherin showing the W2 residue (green VDW structure), and calcium ions (yellow VDW structures). (B) Strand-swapped dimer between E-cadherin EC1–2 fragments. Here the W2 residues (gray VDW structures) bridge the apposing EC1 domains. (C) X-dimer of the W2A mutant of E-cadherin EC1–2 fragments. The adjacent domains form a tetrahedral structure with extensive contacts at the inter-domain junction.
