6CGB:
reference: Homophilic and Heterophilic Interactions of Type II Cadherins Identify Specificity Groups Underlying Cell-Adhesive Behavior., Brasch J, Katsamba PS, Harrison OJ, Ahlsen G, Troyanovsky RB, Indra I, Kaczynska A, Kaeser B, Troyanovsky S, Honig B, Shapiro L, Cell Rep. 2018 May 8;23(6):1840-1852. doi: 10.1016/j.celrep.2018.04.012. PMID: 29742438

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