6BXZ:
reference: A Mechanically Weak Extracellular Membrane-Adjacent Domain Induces Dimerization of Protocadherin-15., De-la-Torre P, Choudhary D, Araya-Secchi R, Narui Y, Sotomayor M, Biophys J. 2018 Dec 18;115(12):2368-2385. doi: 10.1016/j.bpj.2018.11.010. Epub, 2018 Nov 16. PMID: 30527337

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