4XXW:
reference: Tuning Inner-Ear Tip-Link Affinity Through Alternatively Spliced Variants of Protocadherin-15., Narui Y, Sotomayor M, Biochemistry. 2018 Mar 20;57(11):1702-1710. doi: 10.1021/acs.biochem.7b01075., Epub 2018 Mar 6. PMID: 29443515

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).